In the city guide for black and odorous water bodies issued by the Ministry of Housing and Urban-Rural Development, source control and sewage interception technology, endogenous governance technology, ecological restoration technology, and other water change, on-site, bypass trea

2025/05/3015:11:50 hotcomm 1118

For the common people, what everyone can see, smell and feel strongly is the black and smelly water bodies in the town. The black and smelly water not only damages our living environment, but also seriously affects the city's image.
The selection of urban black and odorous water treatment technology should follow the five basic principles: applicability, comprehensiveness, economy, long-term effectiveness and safety. The black and odorous water body city guide issued by the Ministry of Housing and Urban-Rural Development pointed out the source control and sewage interception technology, endogenous governance technology, ecological restoration technology, and other water change, on-site, bypass treatment and other technologies, but no engineering examples or combinations can be used to learn from it. I have selected 39 black and odorous water body treatment projects, and the detailed explanation is as follows:

Beijing Black and odorous river treatment project case

Project name 1: Beijing Macao River Project introduction

Project Overview: The river section of the project area is 1.6km long, and 10,000 m³ of municipal tailwater is discharged into the river channel every day, and some sewage in the urban area along the river is discharged directly into the river. The pollution in the lower river is large, causing the river water odor, mosquitoes and flies to breed, the water ecosystem collapses, and the water quality is Class V water body, which seriously affects the environment along the river.
governance process overview: adopts substrate improvement + water quality regulation + efficient ecological floating island + construction of Aiers water ecosystem + aeration reoxygenation.
management site photos or main equipment photos:

Project name 2: Beijing Shijingshan District Gaojinggou Black and Smelling River Repair and Treatment Project

Project Overview: Gaojinggou River is about 2.5 kilometers long, the average water surface is about 23 meters wide, the average water depth is about 1 meter, the normal water storage capacity of the river is about 57,500 cubic meters, and the bottom mud is about 1250px thick. There are many residential areas on both sides of the Taiwan Strait, and the river is close to Gaojing Thermal Power Plant. The pollution along the coast is severely discharged, and there are many types of pollution loads, mainly including foreign aid pollution sources and internal pollution sources. Among them, domestic sewage contains a large amount of organic matter. When large molecules are decomposed into small molecules, they will seriously consume dissolved oxygen in water, destroying the ecological balance of the basin.
treatment process overview: Bangyuan Environmental Protection conducts zoning treatment of Gaojinggou. After 15 days of biological treatment, the odor of water body gradually eliminates, the phenomenon of upturning the bottom sludge is alleviated, and the transparency of water body is improved. During the treatment process, the unique Bacto-Zyme1011 series of biological complex enzymes are used to quickly inhibit pollutants, eliminate black and odor phenomena, and adjust the treatment plan in a timely manner according to different levels of pollution. This makes the water clear and beautiful after the river management, greatly improving the residents' sense of happiness and urban appearance.
management site photos or main equipment photos:

Project name 3: Beijing Yongyin Canal and Kunyu River Management Cases

Project Overview: Water quality is of inferior V water, from the degree of freedom to the intersection with Kunyu River. The upstream of the canal is a dead end, which is basically a stagnant ditch. The main water sources in the river channel are surrounding rainwater and sewage pipes and natural rainwater. Judging from the properties of the river bottom mud, a large amount of domestic sewage is poured in, and organic matter is deposited in the river bottom mud. In addition, the water has poor fluidity and lack of dissolved oxygen at the bottom mud. Therefore, after the temperature rises, the river water is prone to form a water bloom or the bottom mud floats up and causes black odor.
governance process overview: Under the technical guidance of Biwofeng, was first used to improve the anaerobic condition of the sediment and accelerate the mineralization of the sediment by changing the redox potential. At the same time, BZT purifying water is regularly added to the water body, using the natural growth of microorganisms to form ecological niche competition, accelerate the assimilation and release of nutrients, effectively inhibit the excessive growth of algae. At the same time, there are also products such as BZT algae removal and ecological water purification agents.
management site photos or main equipment photos:

Project name 4: Beijing Wenyu River Project

Project Overview: River tributaries have direct discharge of 10,000 tons of domestic sewage flowing in every day, with each river 5,000 tons, causing black and odorous river channels.
treatment process overview: Shenzhen Zhengxiao Water Treatment uses flocculation and precipitation equipment and adds the world's fastest mineral flocculant, and black water turns into clean water in 3 minutes.
equipment is small in size and processes 2500 tons of sewage per day to cover an area of 15 square meters.This project has 2 equipment installed in each river, and handles 5,000 tons per day. Treatment effect: 90% of the suspension removal rate, 80% of the total phosphorus removal rate, COD removal rate above 50%
Photos of the treatment site or main equipment:

Zhejiang Province Black and Smold River Treatment Project Cases

Project Name 5: Zhejiang Province Cross Port River Black and Smold Water Treatment

Project Overview: Cross Port River, starting from Xitang River in the south and ending at Qianjiabang in the north, with a total length of 2487m. The current river width is 6-30m, the planned control river width is 20-25m, the planned river bottom elevation is 0.00m, the normal water level is 1.35m, and the overall north-south direction is canal water system. Due to inadequate sewage interception and the lack of supporting municipal pipelines, the phenomenon of direct discharge of domestic sewage in surrounding urban villages and secret discharge of sewage on construction sites and enterprises often occurs. In addition, the river water is "dead" and once became one of the black and smelly rivers in Gongshu District.
governance process overview: Cross Port River adopts the process of "algae + underwater forest + aeration reoxygenation + ecological floating island + aquatic animals and plants". According to the characteristics of the river channel and the water quality management goals, it builds a submerged plant producer community mainly with "underwater forests". Combined with aquatic biological manipulation and oxygenation technology, through the rational arrangement and matching of aquatic animals and plants, while improving the food chain, it comprehensively improves the water quality of the water body, realizes self-purification of the river water body, improves the transparency of the water body, and builds a beautiful and friendly and natural water ecological landscape on and underwater in all aspects.
management site photos or main equipment photos:

Project name 6: Zhejiang Province Bijiazhi River Black and Odor Comprehensive Management Project

Project Overview: is in Zhoushan , the Bijiazhi River Basin has a large population, and industrial enterprises on both sides of the river are dense. With the disrepair of the municipal pipeline network, sewage infiltration, catering domestic sewage is directly discharged, and surrounding industrial and domestic sewage is discharged... The water body in this basin is black and smelly, with 50-80cm of bottom mud, and the water flow is poor.
Overview of the treatment process: Yinjiang Environmental Protection uses core technologies such as exogenous sewage interception (fish market wastewater sewage treatment), in-situ repair, KtLM filter membrane machine circulation purification, and ecosystem restoration to make the water surface from piles of garbage to the current clean and refreshing, the water quality from the original black and smelly water body to the current Class IV water on the surface, and the river surf from the original odor that everyone dislikes to the landscape river that everyone praises now.
management site photos or main equipment photos:

Project name 7: Wuyi Creek black and smelly water body treatment

Project overview: Liyang Creek water system total length 14.38km, river width 4-10 meters, mainstream length 10.1km, basin water collection area 10.3km2, tributary May Day Creek river length 3.03km, tributary Foling Temple Creek river length 1.25km. In the 1980s, the water flow of Liyang River was clear and the river bank was clean. However, with the rapid development of the city, various pollution sources were derived, destroying the water system environment. In the 1990s, the river water turned black and smelly, and gradually became the dirtiest and smelliest inland rivers.
governance process overview: Since 2014, Lishui City has taken advantage of the province's "five water governance" (swage treatment, flood control, drainage water, water supply, and water conservation) to make up its mind to take measures such as "water and shore treatment, both symptoms and root causes, and joint governance of cadres and the masses" to promote water control work in all aspects and achieve phased results.
1. Treat the waterfront together and clarify the goal orientation (I) Draw a good roadmap for water treatment. (2) Prepare a good water control plan. (3) Strengthen the responsibility system for water control.
2. Treat both symptoms and root causes, clarify the problem orientation (1) Focus on the problem, and use project construction to dig clean water channels. (2) Strengthen management and build a solid anti-fouling embankment with strict and practicality. (3) Focus on progress and promote water control through monitoring, patrol and supervision.
3. Co-governance between cadres and the masses, and create a propaganda orientation (1) Strengthen publicity and training. (2) Strengthen the publicity carrier. (III) Create a propaganda atmosphere.
management site photos or main equipment photos:

Guizhou Province black and smelly river management project case

Project name 8: Guiyang City Nanming River Comprehensive water environment improvement

Project overview: Nanming River originated from Bainitian, Linka Township, Anshun City, Guizhou Province, with a total length of 118 km, with a basin area of 6600 km2, running through Guiyang city from west to east, and is the mother river of the people of Guiyang. Due to the rapid economic development of Guiyang, the population of the Nanming River Basin has increased significantly, and the Nanming River is overwhelmed. The pollution situation is shocking: nearly 100 sewage and industrial enterprise sewage outlets along the river, pouring a large amount of domestic sewage and industrial wastewater into the river every day; the coast is full of domestic waste, and dilapidated shantytowns are spread all over the river; the water quality of the river has deteriorated seriously, and the river section entering the city has dropped into a Class V water body.
Overview of the governance process: China Water Environment Group analyzes existing problems and plans to use measures such as intercepting, cleaning, pollution control, and water replenishing to carry out governance in combination with urban economy, ecology, landscape and culture.
includes river silt, water environment management of tributaries, sludge and ecological management, etc. The improvement of the sewage interception system includes the transformation of the main stream sewage interception ditch, the transformation of the main stream sewage interception pipe, the construction of supporting sewage interception ditch in Xinzhuang Phase II Sewage Plant, and the improvement of the sewage interception system of the tributary of the Xiao Yellow River , Madi River, Shixi River, and Guancheng River; the dredging work includes the main stream sewage dredging, the small Yellow River sewage dredging, Madi River sewage dredging, Guancheng River sewage, and the city Xihe dredging. Some of the other contents are innovative moves that are actively striving for: in terms of the construction of the second phase sewage plant, in accordance with the requirements of the planning of Guiyang City at that time, a centralized large-scale sewage treatment plant (a scale of about 400,000 tons) was planned and built in the lower reaches of the Nanming River. However, after sufficient research and analysis, China Water Environment Group suggested that more than 10 50,000 tons of sewage plants be built along the river to unify the planning, on-site treatment, and on-site emissions.
management site photos or main equipment photos:

Guangdong Province black and smelly river management project case

Project name 9: Guangdong Province Heshan City Shaping River water environment comprehensive improvement project

Project overview: Heshan City With the rapid development of the economy and industry, the urban population continues to expand, and a large amount of untreated water is directly discharged into the Shaping River. The water pollution is very serious, and the long-term main flow is in Class V.
governance process overview: In 2014, the group launched a governance strategy. For this project, the focus of pollution control is on tributaries. The focus of the work is on the interception and discharge of industrial sewage. We have recently formulated a governance strategy: chasing the source, intercepting and diversion, wetland flood control, ecological continental beaches, water diversion and capacity increase, realizing "road access", and creating a "smart river channel". There are five governance strategies in the long run: source control, low-rush construction, rain and sewage diversion, river and lake connection, and backup water sources.
management site photos or main equipment photos:

Project name 10: Guangzhou River Flow Ecological Comprehensive Remediation

Project Overview: Guangzhou Central Urban Water Network is lateral, with 231 major rivers and surging, total length is 913km, and it shoulders the tasks of urban flood control, drainage, irrigation, shipping, and residents' life and leisure and entertainment.
However, with the development of urban economy and population expansion, the emissions of industrial wastewater and domestic sewage continue to exceed the standard, causing serious damage to the water environment in rivers and surging. The river surfing has lost its original function and has begun to become a sewage discharge channel, seriously affecting the surrounding environment and the health of residents.
Overview of the governance process: According to the specific situation of rivers and surfings, the comprehensive rectification measures adopted include: pollutant control projects (exogenous control projects (point source control, surface source control), and endogenous control projects (sole sludge control projects), water environment improvement projects (water diversion and replenishment, water resource control), ecological restoration projects (wetland projects, microbial purification, aquatic animal and plant creation), humanistic river management projects (human landscape, planting trees and grass), etc. In short, the ecological restoration of rivers and surfings is a systematic project with ecological concepts.
management site photos or main equipment photos:

Shanghai Black and Smell River Treatment Project Case

Project Name 11: Shanghai Jiading District Anting Old Street Landscape River Ecological Restoration Project

Project Overview: Shanghai Jiading District Anting Old Street Landscape River Ecological Restoration Project is located in the landscape area of Anting Town Old Street Landscape River. The river is the landscape river in the scenic area. It effectively manages about 1,170 meters of river section and about 24,840 cubic meters of water. The pollution sources in the rivers in the Old Street Scenic Area of Anting are mainly composed of the following aspects: point source pollution, including direct discharge outlets of sewage wastewater and direct discharge rainwater pipes; surface source pollution: including urban rainfall runoff: endogenous pollution: bottom mud of water, garbage along the shore zone, etc.
governance process overview: According to the governance goals and various indicator requirements established by the owner unit, Jiangsu Haoheng Nano Environmental Protection Co., Ltd. organized personnel to locate and install nano equipment in Anting Old Street, Jiading, Shanghai in May 2016, transformed the river ecological environment system, improved the river hydraulic conditions and dissolved oxygen content in the water, thereby effectively suppressing the occurrence of black and odor of water bodies, building an ecological landscape plant system, providing a foundation for the construction of a river aquatic ecosystem, and at the same time consumed pollutants in the bottom sludge and improved water quality.
management site photos or main equipment photos:

Project name 12: Shanghai Gaodong Park water ecological restoration project introduction

Project overview: The average water depth in the project area is 1.8m, and the water area is 13,000 square meters. Before the project was restored, the water body was extremely eutrophied, and the water quality was black and smelly, which was a poor V water quality. The water body ecosystem was incomplete, with almost no submerged plants or floating leaves. The fish were mainly mixed fish. It had not been silted for more than ten years, and the silt was very deep, and the main pollution was domestic sewage, surface runoff and internal pollution. This lake body was responsible for 66,000 square meters of rain and sewage.
governance process overview: adopts substrate improvement + water quality regulation + ecological water purification integration technology patent (patent number: 201610635612.7).
treatment site photos or main equipment photos:

Project name 13: Shanghai Caoyang Huanbang Pollution Control Demonstration Project

Project Overview: Caoyang Huanbang is a circular closed waterway located in Caoyang New Village, Putuo District, Shanghai. It has a total length of 2208m, a width of 8~14m, a water depth of 0.5~1.5m, and a water storage capacity of 3.2×104~4.0×104m3. The distance between the north and south waterways of Huanbang is relatively long, reaching 880m; the distance between the east and west waterways is relatively short, about 480m.
Cao Yang Huanbang is located in the hinterland of the old city of Shanghai. It is surrounded by buildings and is home to more than 100,000 residents. The population and building density are extremely high. In the past, due to the pollution caused by the large amount of urban sewage and garbage injection, the water body in Huanbang became black and smelly, and the environment along the way was extremely dirty. Before the treatment, it was a stinky ditch in the center of Shanghai, and the surrounding citizens suffered a lot.
Overview of the governance process: , improve sewage interception 2, circumventing 3, build a healthy water ecosystem 4. Set up a portable duckweed salvage machine 5. Monitor water quality changes regularly and take improvement measures in a timely manner
management site photos or main equipment photos:

Jiangsu Province black and smelly river management project case

Project name 14: Landscape river management of Xuzhuang Software Park, Nanjing City, Jiangsu Province

Project Overview: Because the water in the landscape river in the Software Park does not flow for a long time, it is stagnant water, some domestic sewage discharged around polluted the water quality, and it has not been treated for a long time. Before the Deyuqing treatment, the water body turned green and black, with a foul smell, the water body was turbid, and the visibility was low. A large number of duckweed and algae grew wildly and covered the water surface, and a large number of plant rotten flocs and dead grass and leaves were often seen floating on the water surface, which seriously affected the landscape environment of the Software Park.
treatment process overview: Deyuqing surface water treatment system works by pumping surface water into Deyuqing patented mixer, part of the water enters Deyuqing host, strong oxidation of the incoming sewage inside the host, and mix saturated oxygen at the same time, the water that is oxidized and disinfected and contains saturated oxygen enters Deyuqing mixing system, mixes with ten times the water body, and continues to use residual strong oxidizing agent to oxidize the pollutants in this part of the water, and mixes the oxygen, so that the sewage is mixed with more than 8mg/L of oxygen into the surface water system such as rivers or lakes while the part of oxidized COD, and recurs. By oxidizing and decomposing organic matter in water, the effect of rapid decolorization, deodorization and degradation of CODcr is achieved. At the same time, the equipment operation can kill harmful bacteria, inhibit the growth and reproduction of anaerobic bacteria, provide oxygen, increase the dissolved oxygen content in water, facilitate the growth and reproduction of aerobic bacteria, and promote the recovery of the self-purification function of the ecosystem.
management site photos or main equipment photos:

Project name 15: Jiangsu Province Nanjing Zhongzi River Black and Smold River Treatment

Project Overview: Zhongzi River is located in Jianye District, Nanjing City and is one of the famous black and smelly river channels in Nanjing. The surrounding domestic sewage is large, the water quality of foreign water sources is also poor, oxygen-consuming pollutants accumulate, water bodies are deficient, rotten bacteria grow, and accompanied by the outbreak of blue-green algae, the water quality is very bad, and it is very difficult to deal with.
governance process overview: base quality improvement technology + microbial regulation technology + high-efficiency ecological floating island. After treatment, the river channel is neither black nor odor, the water ecological restoration, the water body is clear and the water quality is good; the floating island vegetation is lush and the scenery is beautiful.
management site photos or main equipment photos:

Project name 16: Jiangsu Province Xuzhou Zifang River Black and Smell River Treatment

Project Overview: Zifang River is located in the northeast area of the city, and the downstream is connected to the Jingma River, with a water collection area of 6.5 square kilometers. The test water area was selected on the river channel on the north side of the Xiadian Railway 26 dormitory, starting from the Xiadian Zifang River sewage gate, with a total length of more than 60 meters.
The water quality of this river section is sticky and the water color is like ink. A large amount of kitchen waste oil, industrial waste oil and a large amount of domestic waste floating on the surface. The entire section emits a pungent odor. Residents nearby were deeply disturbed by it. Passers-by all covered their noses and passed by. The upper and lower reaches of the demonstration section are also filled with oil and waste garbage. According to the detection, no aquatic organisms or aquatic plants can be seen in the water.
treatment process overview: first put the test preparation into the water to remove the stickiness of the water and the viscosity of the bottom sludge. Due to the narrow construction section, large equipment cannot be deployed. A swirl wave maker is used to fully disturb and mix the water body and the bottom mud on a large scale, so that the product can fully contact with various pollutants in the bottom mud and the water body, and quickly remove the sticky state of the water body and the bottom mud. According to the on-site observation results, after 10 hours of WRI Qingshui No. 1, the water stickiness was lifted and the black odor of the river surf was eliminated. The second dose of
test preparation was prompted to rapidly decompose the oil stain released from the bottom sludge and floating on the water surface. After 12 hours, the oil stains, suspended organic matter and toxic and harmful substances were decomposed, and the oil stains were decomposed at the scene, which was very obvious.
is the third dose of the test preparation. Detoxification and deodorization improvers can quickly decompose various toxic and harmful substances in water, including pesticides, dyes, herbicides, polychlorinated biphenyls, polycyclic aromatic hydrocarbons, and dozens of toxic and difficult-to-degrade organic substances that are highly toxic and harmful to biological cells, such as pesticides, dyes, herbicides, polychlorinated biphenyls, polycyclic aromatic hydrocarbons, and drug residues produced by the use of chlorobromide preparations. After 72 hours of the product being placed, the water color is clear and the odor disappears.
management site photos or main equipment photos:

Anhui Province black and smelly river management project case

Project name 17: Anhui Province Nanhugou Black and smelly water body treatment

Project overview: Nanhugou is the main channel for drainage in urban areas, connecting to Qingxi River in the east and to Baiyang River in the west, with a total length of about 1,100m. Part of the river is covered by real estate projects and is in a closed state. The catchment area is 140hm2 and the daily sewage volume is 4000m3.
1. A large amount of sewage is discharged directly: Some areas upstream of the water confluence area have not yet been diverted rain and sewage. Domestic sewage flows into the drainage ditches with the confluence pipes and finally enters Nanhugou. The drainage company investigates the pollution sources around its upstream, from the initial discovery of 14 pollution sources to the final discovery of 108 pollution sources; the sewage interception on both sides is not thorough, and there is a problem of misconnection between rain and sewage;
2. The main canal is a stagnant area, and the water does not flow, and it is very easy to become black and smelly without self-purification;
3. Residents discard garbage into the Nanhugou, and the sewage dumping is serious.
Overview of the governance process: Since most of the area is rain and sewage convergence, in accordance with the principle of combining easy first and difficult, and short-term and long-term, the sewage connected to Nanhugou will be intercepted in the near future. In the long run, the rain and sewage divergence transformation will be carried out gradually according to the implementation of old city renovation to completely solve the pollution problem. In the near future, water circulation measures need to be taken to make the water flow and solve the problem of black and smelly due to long-term stagnant water. Take necessary water ecological restoration measures to restore Nanhugou's ecological self-purification capacity.
1, Yanliu Road sewage intercept pipeline project
2, silting project
3, hydrodynamic cycle project
4, ecological restoration, ecological bank protection project
5, leakage point sewage intercept project
management site photos or main equipment photos:

Sichuan Province black and smelly river management project case

Project name 18: Chengdu Huangyan River River Treatment Project, Sichuan Province,

Project Overview: Huangyan River Sewage Treatment Project Construction Scale is 40,000m3/d, and the pollution of sectional pollution, municipal sewage, industrial wastewater, initial rainwater, confluence sewage, and black and odorous river and lake water bodies.
treatment process overview: main process adopts super magnetic separation + aeration biological filter process to treat direct sewage discharge in the pipeline network. The removal rate of SS and TP reaches more than 90%, and the overall process achieves 50% ammonia nitrogen removal rate, reducing pollution load and preventing sewage from being discharged directly into Huangyanhe.
management site photos or main equipment photos:

Project name 19: Sichuan Yibin People's Park Artificial Lake Management Project

Project Overview: Yibin People's Park is located in the northwest of Yibin City, at the foot of Cuiping Mountain, covering an area of 87 mu, of which more than 40 mu of the lake surface, with an average water depth of about 2m, and the thickness of the silt at the bottom of the lake reaches 1.5m.
1. Domestic sewage pollution: Domestic sewage flows into the overflow outlet of the drainage ditches is the main exogenous pollution of artificial lakes.
2. Ornamental fish farming pollution: Because ornamental fish farming is dense, and the residues and fish excrement of fish feed are rich in organic nutrients.
3. Subsole pollution: The pollutants in the subsole can release various pollutants to the upward water body through desorption, dissolution, biological decomposition and other effects, which is an important source of secondary pollution of water bodies.
control process overview: According to the current pollution situation in Yibin People's Park, EPSB biological ecological comprehensive water pollution control technology (patent technology) is used in combination with other biotechnical means. EPSB engineered bacterial granules (fungal powder) technology, ecological base release, appropriate amount of filter feeding fish and floating island aquatic plants, etc. The entire project starts with the in-situ governance of ecological restoration, rebuilds the ecological chain of artificial lakes, comprehensively restores the self-purification capacity of water bodies, and improves and improves the water quality of artificial lakes.
management site photos or main equipment photos:

Project name 20: Sichuan Zigong Yantan Longhu Park Management Project

Project Overview: Zigong Yantan Longhu Park is located at the east gate of Zigong's main urban area, adjacent to the Hi-tech Bancang Industrial Park in the north, Huidong New District is within reach of the northwest, Wolonghu Ecological Leisure Zone in the south, and the "Two Lakes Bridge" of Nanhu Ecological City in the west. The water area is 486 mu, the waterfront green space is more than 200 mu, the total area is more than 700 mu, the water shoreline is 5 kilometers long, the deepest water level is more than 30 meters, and the water storage capacity is about 2 million cubic meters. The water area of the water ecological restoration demonstration area is about 50,000 square meters, which is part of Longhu Park and has an average water depth of 3 meters. To prevent the outbreak of blue-green algae in summer and the water quality becomes deteriorated.
governance process overview: clean water ecosystem structure, use ecological control means to build a stable water ecosystem of the clean water-shaped lake in Longhu Park landscape lake, ensure that the park landscape lake meets the standards and the water quality operates for a long time.
management site photos or main equipment photos:

Project name 21: Sichuan Province Chengdu Huashui Park Wetland Bio-water Purification System

Project Overview: Chengdu Huashui Park is located on the bank of Jinjiangfu River, covering an area of about 24,000 square meters. It was completed in 1998 and is part of the Chengdu Fu Nanhe ecological restoration project. Its overall design is fish-shaped, meaning that the relationship between man and water, and man and nature is difficult to distinguish between fish and water; the park demonstrates to people the life process of polluted water turning from "turbid" to "clear" and from "dead" to "live" in nature, so it is named "living water". The huge water treatment project in the park has greatly improved the water quality of the Funan River, and thus allowed citizens to witness the natural process of water from pollution to clear. 200 cubic meters of water are drawn from the river every day, and then the bacteria and heavy metals are removed before returning to the river.
governance process overview: Living Water Park fully utilizes the powerful purification function of artificial wetlands on sewage, and is also unique in landscape design, integrating modern consciousness and traditional gardens, and contains rich cultural, artistic and ecological significance. The Huanshui Park was built in 1998. At that time, this ecological treatment technology and concept were very advanced. There are many cities with abundant waterfront areas in our country. However, due to the rapid development over the years, river pollution has been severe, and the problem of water flow pollution needs to be solved urgently. The case of living water parks can provide a good example for solving urban river pollution problems, and it is worthy of our careful research and reference.
1. Ecological water purification
2. Landscape living water
management site photos or main equipment photos:

Guangxi Province black and smelly river management project case

Project name 22: Guangxi Province Nakao River Basin Management

Project Overview: The red line range of the project starts from the planned Maoqiao Lake East Lake in the south, along the line, passing through Xianggui Railway , Changyang Road, Xiangzhu Avenue, Medicinal Botanical Garden, Kunlun Avenue, and to the north of the Huancheng Expressway. The total length of the river is about 6.6 kilometers. The total investment of the project is about 1 billion yuan. The project construction period is 2 years, and is expected to be completed by the end of 2016, with an operating period of 8 years.
Overview of the governance process: construction content includes river channel remediation, sewage interception and treatment, ecological restoration, sewage treatment plants, coastal landscape, "sponge city", information management and other projects. The
project adopts the concept of inland river basin governance, and will build a series of "sponge bodies" to play its role in regulating and remediating rainwater by green spaces, roads, and rivers, and will build a harmonious Nakao River ecological environment with human and water; build two sewage treatment plants, adopt deep treatment, and the main indicators of effluent water meet the IV standard of surface water. After the treated tail water is ecologically purified, it will be discharged into the proposed river channel as a water replenishment source.
management site photos or main equipment photos:

Project name 23: Guangxi Province Liuzhou Liujiang River Basin Management

Project Overview: Liuzhou people's mother river - Liujiang, like a ribbon, surrounds the city area on three sides, forming a pot-shaped peninsula, giving Liuzhou the unique charm of "the river flows like the nine ileals". What is commendable is that Liujiang, which flows through, has won the settlement of many world-class water sports events with its good water environment, and has successfully held activities such as "International Water Carnival" and "World Water Speed Sports Competition". A traditional industrial center dominated by heavy chemicals has suffered from pollution.
Overview of the governance process: In terms of strengthening the pollution control of ship terminals, Liuzhou has fully implemented the installation, use and maintenance of ship domestic sewage treatment devices in its jurisdiction, and tourist ships and water buses in Baili Liujiang Scenic Area have fully realized the recycling and treatment of domestic waste and sewage.Strengthen cruise efforts in key river sections, protected areas, and waters near water plants, severely investigate and punish illegal acts, and prohibit ships from mooring in public water intake waters, discharge domestic sewage and littering.
carries out cleaning and rectification of water source protection areas, patrolling the random construction, random construction and random planting along the Liujiang River, and "clean up one place to discover one place", especially focusing on cleaning up the random construction and random construction of waters near the water source protection areas, and focusing on monitoring of river sections with severe chaos and reclamation. From January to September this year, a total of 637 square meters of illegal construction were demolished in accordance with the law.
In order to ensure the clean and tidy environment of the waters in the jurisdiction, Liuzhou City has increased its efforts in river inspections and cleaning, strengthened daily inspections of the main river and tributary waters of the Liujiang River and river cleaning work in the jurisdiction, and promptly deal with river cleaning issues such as public reports and media exposure. From January to September this year, a total of 9,602.5 cubic meters of floating garbage were cleaned up and 38 animal corpses were salvaged.
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Shandong Province black and smelly river management project case

Project name 24: Shandong Qingdao Dingjiahe Ecological Management

Project Overview: Dingjiahe is located in Qingdao Huangdao District, adjacent to Citizen Square, and is a seasonal river. The river originates from Muling Mountain in the northwest of the government, flows from northeast to southwest through Dingjiahe Village, Landong Village, and flows into Tangdao Bay. It is 2.5 kilometers long and the river is about 20 meters wide. The main stream slopes are large, and mountain torrents are often harmful. Since the construction of Dingjiahe Reservoir in the upper reaches in 1976, the river channel has been cut off and has dried up all year round. There is only about 2 meters of water-stabilized ditches left on the riverbed, which has lost the role of urban flood discharge. Surrounding residents open land and farm around the riverbed and dump garbage, making the river a sewage river a sewage river. The scene of "swarms and flies are swarming and smelling" has greatly affected the lives and urban environment of surrounding residents.
Overview of the governance process: . Develop underground submerged water sources 2. Build stone weirs and overflow dams upstream 3. Underground submerged storage projects 4. Sewage interception projects 5. Natural coastline design 6. Ecological coast protection design 7. River culture restoration. The restoration of Dingjiahe Wetland uses cement soil deep mixing piles as vertical anti-seepage technology to intercept underground flow, raise the groundwater level by 3.5 meters to 2 meters above the ground, forming a river wetland open flow. After four years of operation and observation, the wetlands have water all year round in winter and summer, and the water cut-off wall has good anti-seepage effect, creating a new way for the replenishment of water in seasonal river wetlands in water-scarce areas in the north, and it has practical significance for promotion.
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Project name 25: Shandong Qingdao Licun River Ecological Management

Project Overview: Licun River is the largest basin area, the longest river channel and the largest tributaries in the urban area on the east bank of Qingdao. It originates from Baiguo Mountain, the Yumai of Laoshan, with a total length of about 17 kilometers and a gathering area of 147 square kilometers. It flows through the eastern Licang Ecological Commercial and Residential Area, Qingyin Expressway, Licun Business District, Chongqing Road, Jiaoji Railway, Huanwan Road, and merges into Jiaozhou Bay. It is not only an important flood control and drainage channel, but also has important ecological functions.
governance process overview: Since 2009, has successively implemented comprehensive rectification of Licunhe sections. At present, the comprehensive improvement of about 8.4 kilometers of the upper reaches of Licun River (Baiguoshan-Qingyin Expressway) section has been completed; the comprehensive improvement of about 5.6 kilometers of the lower reaches of Licun River (Junfeng Road-Inlet Sea) section has been basically completed; and the comprehensive improvement of about 3 kilometers of the middle reaches of Licun River (Qingyin Expressway-Junfeng Road) section is underway. The rectification content mainly includes: pollution interception, flood control, ecological restoration, water storage, landscape environment construction, etc., with a total investment of approximately RMB 2.4 billion. After rectification, the black and smelly water body of Licun River and the dirty and messy environment have been effectively improved, and the environmental quality of the urban areas along the river has been improved.
1. Adhere to unified planning and coordinate the implementation of rectification (I) Attach great importance to the planning of river channel improvement system (II) Coordinate the implementation of
2. Adhere to problem-oriented approach and make priority to rectifying black and odorous water bodies (I) Objectively analyze the existing problems in the current situation of rivers (II) Scientifically formulate black and odorous water bodies treatment plans (I) Adhere to natural ecology and take into account urban landscape
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Black and odorous river management project case in Shaanxi Province

4 Project name 26: Xi'an Xi'an Xi'an Xi'an Xi'an Xi'an HTML

Project Overview: Xi'an River is a river in Xi'an City and is the largest tributary of the Ba River . The Ba River is a river in Shaanxi Province, China and originates from Qinling . The Xiba River is the two major water systems in the Eight Waters of Chang'an. The basin area is 2581km2. It is the water source and ecological support of Xi'an. Due to the serious pollution in recent years, water quality has gradually declined and has lost its ecological function.
1. The water volume of rivers is severely insufficient, and the water quality is seriously polluted.
2. Sand pits are everywhere, garbage is made into mountains 3. Silt and sand are silted, floods are raging. Overview of the governance process: Xi'an Ecological Zone Water ecosystem protection and restoration model has become a demonstration of the comprehensive governance of the Weihe River basin in Shaanxi Province and the ecological environment construction of Xi'an. Many of its experiences are worth learning from, but in the future they still have many problems that need to be solved. Ecological functional areas need to be demarcated from the perspective of the entire basin. According to the positioning and characteristics of each functional area, targeted greening and flood detention are adopted in the upstream, pollution control in the middle, and wetland construction and restoration of the downstream estuary . The ecological environment water use in the lower reaches of the Xi'anba River is inherently insufficient. We should actively explore the ecological environment utilization methods of recycled water and rainwater, the recycled water pathways of tailwater, and engineering and technical measures for improving water ecology to improve utilization.
1. Establish an efficient and powerful management organization
2. Effective planning, science and technology public relations
3. Adapt to local conditions and turn waste into treasure
4. Intercepting and recycling
5. Build embankment and dams, control river channel cutting, and maintain groundwater level
6. Ecological protection of embankments and
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Project name 27: Ecological governance in Shaanxi section of Weihe

Project overview: Weihe (Weihe) River), known as the Wei River in ancient times, was the largest tributary of the Yellow River. The main stream of the Wei River is in Shaanxi, with a flow length of 502.4 kilometers and a basin area of 67,108 square kilometers, accounting for 50% of the total area of the Yellow River Basin in Shaanxi.
Due to historical reasons, there are too many debts in the construction and renovation of urban drainage pipelines, resulting in serious urban drainage and rainwater confluence and pipe network aging. Sewage treatment and pipeline construction will be more scientific and reasonable, and the real implementation of rainwater and sewage diversion is the long-term effective guarantee for river management. The pollution interception in the Weihe River is not thorough, and there are different degrees of lag in the rectification project in terms of land acquisition, approval, etc. This leads to a lot of room for improvement in pollution control.
governance process overview: The comprehensive improvement project of the Shaanxi section of the Wei River started on January 15, 2011. After four and a half years of efforts, the main body of the 630-kilometer embankment of the entire line was completed, 53 transportation bridges in the Weikou area were built, and 150,000 mu of ecological wetlands and water surface landscape were built. The construction and reinforcement project of the 103-kilometer Nanshan tributary embankment of Huayin, Hua County, Weinan City has been completed, and the flood storage and detention areas of 5 tributaries and the backflow prevention projects of 3 tributaries have been completed. By strengthening embankments, dredging river channels, rectifying river beaches, controlling pollution, diversion of water and sand, we will take into account and unify the planning.
1. The flood control capacity of the entire Weihe River has been greatly improved
2. Introduce the concept of harmonious river management of people and water
3. Strengthen the monitoring of water quality at the sewage outlets into the river
4. The management of Weihe River has driven a significant industrial agglomeration effect
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cases of the black and smelly river management project in Hubei Province

Project name 28: Hubei Province Shiyan City Ecological Management of Wuhe Basin

Project Overview: Shiyan City's total area of Wuhe Basin is 1,511 square kilometers, including Shending River, Si River, Zhan River, Guanshan River, and Jian River Basins.The water environment in the Wuhe River Basin has suffered from varying degrees of pollution. Except for Guanshan River, which is of four types of water, the water quality of the other rivers is of five categories, which seriously affects the water environment of Danjiangkou Reservoir and then affects the water quality of the South-to-North Water Diversion. The three rivers of Shending River, Zhanhe and Sihe cross the main urban area of Shiyan. Among them, Shending River mostly concentrates domestic sewage discharge, while Zhanhe and Sihe mostly concentrates industrial sewage discharge.
governance process overview: Shiyan City conscientiously performs its duties and actively takes effective measures to increase pollution control efforts, ensuring the water quality of the South-to-North Water Diversion is worthy of encouragement. It has taken many landscape ecological measures, and its effect after governance is expected, but it has invested huge amounts of money to carry out comprehensive rectification. The overall plan is beautiful, but whether it can be implemented without any discount will not be distorted in the later period. We will wait and see.
1. Improve the layout of the municipal pipeline network, improve the interception capacity, and realize "sewage takeover, clean water returns to the river"
2. River channel dredging, and at the same time restore natural sub-troughs
3. River garbage is collected regularly, clean management
4. Restore natural river channels, restore river floodplain
5. Add multiple pond water surfaces and wetland systems
6. Use ecological banks and ecological banks to protect the waterfront environment on both sides of the river: ecological banks and ecological banks.
7. By creating several larger landscape water storage areas in the river, it can not only create a beautiful landscape effect, but also use aquatic plants in the artificial floating island to absorb nutrients such as nitrogen and phosphorus in the water, and adsorb and intercept suspended algae and other suspended substances.
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Project name 29: Hubei Province Jingmen Zhupi River Basin Comprehensive Water Environment Management Project

Project Overview: In recent years, with the improvement of urbanization level, the sharp increase in urban population and the continuous improvement of people's living standards, the total urban sewage emissions have increased sharply, and the pressure has become increasingly greater. According to the environmental data of Jingmen City , the domestic sewage pollution load in our city has exceeded the industrial wastewater pollution load. As the only drainage channel in the central urban area, the focus of water pollution control in the Zhupi River Basin has gradually shifted from industrial point sources to control mainly based on urban domestic sewage.
Overview of the governance process: Our city plans to solve the pollution problem in the urban section of the Zhupi River Basin in two years: Focusing on the range of 22.48 kilometers of total length of Zhupi River Bridge from Haihui Jingyan No. 2 to Jingxiang Expressway, five major projects are implemented, namely, sewage and silting project, ecological water replenishment project, river channel renovation project, facility supporting project, and point (surface) source control project. The sewage interception and dredging project will add and renovate 35.24 kilometers of sewage interception pipelines, of which 13 kilometers of sewage interception main pipes will be added on both sides of the Liuhe , the Haihuigou, and the south bank of the Zhupihe urban section will be added, 9.7 kilometers of sewage interception main pipes will be renovated and replaced, and 12.54 kilometers of sewage interception branch pipes will be added on the river road.
Through river remediation and landscape projects, it further meets the water conservancy function of Zhupi River flood control and drainage, restores the water environmental function, ensures the water quality safety of drinking water for livestock in the middle and lower reaches and farmland irrigation, ensures the water quality requirements for Zhupi River entering the section of Han River, and further improves the ecological environment of the basin, and ultimately achieves the strategic goal of "clear water, full water, ecology, and landscape", and benefits the people along the coast.
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Project name 30: Hubei Qingshan Port black and smelly water body treatment

Project overview: Qingshan Port is adjacent to the Yangtze River in the north, close to Linjiang Avenue , the west is Jianshe No. 11 Road, Jianshe No. 11 Road, and the south is Heping Avenue, spanning the Third Ring Road, and is adjacent to Qingshan Park and Daijiahu Park . The water collection area is 5.3 square kilometers, and the project scale is 76.19 hectares. The upper reaches of Qingshan Port carry the Yangtze River and the lower reaches extend to Donghu Lake. It is the main channel for Dongsha Lake water system to divert water from the Yangtze River. It has the main functions of draining stains and regulating the water level of the East Lake, and pumping and digging water.
treatment process overview: intercepts the current sewage discharge outlet directly discharged into the port, and diverts the sewage to the municipal sewage pipe; intercepts the combined discharge outlet to the sewage treatment plant on sunny days, and build ecological discharge outlets, oil-separated sand wells, ecological floating islands, wetlands and other ecological treatment facilities to purify the rainfall pollution (CSO) in the rainy season; for the current rainwater discharge outlet, ecological discharge outlets are set up to purify the rainwater entering the port; for the rainy season surface source pollution, the current 8m terrain elevation is used to set up surface flow wetlands and undercurrent wetlands to further treat overflow rainwater; at the same time, sponge facilities are "seepage", "stagnant", "storage" and "clean" the green space along the canal to be discharged to Qingshan Port to ensure the safety of water diversion of Qingshan Port.
silt the open channel and sand sink in Qingshan Port to improve the water quality of the port channel and improve the overflow capacity of the port channel. At the same time, plant aquatic plants and place aquatic organisms to build a good water ecosystem to restore water bodies. Adapt to local conditions, ecological measures such as gentle ecological slopes and gabions are adopted to rectify the current situation of messy revelations.
Park combines the "Technical Guidelines for Sponge City Construction" to integrate various technologies such as "seepage, stagnation, storage, purification, use, and discharge" into the landscape design, and set up sponge measures such as grass planting ditch, rainwater garden, penetration paving, gabion wall, PP rainwater storage module and other sponge measures. After the rainwater is purified through the rainwater garden and permeable paving, it is collected and discharged into the PP rainwater storage module by blind seepage pipes. After the rainwater is purified, it is used for regional greening and water supply for landscape. Overflow outlets are set up in Zhicaogou and the rainwater garden. When it rains heavily, it is discharged into the rainwater pipe through the overflow outlet, and finally into Qingshan Port.
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Liaoning Province black and smelly river management project case

Project name 31: Liaoning Province Shenyang Puhe Ecological governance

Project overview: The cold areas in the north are restricted by natural conditions and local social cognition, and the restoration of urban water ecosystems started later than in the south. The Shenbei New District Puhe ecological governance project, which was built in 2006, is the first comprehensive urban water ecology management in cold areas that was carried out in the Northeast region, and has achieved good results. Subsequently, ecological governance of urban rivers such as Yanjibul Hatong River urban section, Puhe Shenyang Yuhong District , Changbai Mountain Protection and Development Zone Alkaline River and Hanconggou were carried out.
Puhe is a first-level tributary of the Hun River in the Liaodong Bay water system. It runs through Shenbei New District and Yuhong District of Shenyang City from east to west. Zhouxu Village, Lengzibao Town, Liaozhong County, entered Liaozhong District and merged into Hunhe River after entering Liaozhong. The Shenbei New District section is 32 km long. The Puhe River channel in the new section of Shenbei District is winding and twisting, with a narrow and deep river channel, with an average depth of about 5.0 m, and belongs to an underground river. The water depth is less than 0.5 m during the dry period. The river channel drops by 1/1500.
Overview of the governance process:
1, river form design, winding natural form,
2, river surface design, 7 artificial lakes expand the water surface area,
3, bank protection design, more transparent material anti-solution
4. Plant design forms a three-level biological system of trench + shrub + grass
5. River culture makes Puhe a livable green ecological belt

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Hunan Province black and smelly river management project case

Project name 32: Hunan Province Changde Moat and Zhuanzihe Black and Smolding Water Treatment Changde Black and Smolding Water Treatment

Project Overview: Changde City is a typical southern water city with a water surface rate of up to 17.8%. Zhuanzihe and Moat are now urban black and odorous water bodies. The management of the two black water bodies of the moat and the Zhuanzi River in the old city are introduced respectively. The moat is a confluent drainage main channel in the old urban area, and the confluent drainage system on the cross-strait is the main source of pollution in the moat.
governance process overview: Moat black and odorous water body treatment is carried out in accordance with the sponge city construction idea of "source emission reduction, process control, and systematic governance", and four measures of "gray and green combination" are adopted. The sewage directly discharged from the moat is intercepted and transformed and entered the sewage treatment plant for treatment.The water system mainly undergoes river channel restoration, dredging, and water ecological restoration; the water system green belt combines water levels to build different low-impact development facilities; the waterfront building area reasonably organizes rainwater, rationally utilizes the water system green belt to purify the slope rainwater and replenish the river water body; other areas have built low-impact development facilities to retain and purify the water quality, and replenish the moat water body through the rainwater pipeline network.

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Project name 33: Hunan Changsha City Guitang River Black and Smelling Water Treatment

Project Overview: Guitang River is the only urban inland river in Changsha City. It is located in the southeast of Changsha City. It is a first-level tributary of Liuyang River. It originates from Shiyan Lake Reservoir in Tiaoma Town, Yuhua District. Other water sources mainly come from rainwater, reclaimed water, domestic wastewater, industrial wastewater, farmland irrigation water and mountain pond reservoir drainage. The whole journey is about 28.3km and the basin area is 125km2. According to the water quality monitoring results of Changsha Environmental Protection Department from the end of 2012 to 2015, the water quality of the three sections of the basin and the intersection with the Liuyang River all showed Class V indicators.
governance process overview: The reliability, safety and sustainability of the comprehensive management of the Guitang River Basin, led the province to introduce "water ecological restoration technology", adopt the purification efficiency of the "algae and insect-eating plant" symbiosis system, build an ecological food chain such as "insect control - fish and insect-eating", increase aquatic biodiversity, form a virtuous cycle of water ecological self-purification system, and comprehensively restore a well-balanced water ecosystem.
The artificial wetland (Yuyan Lake) built on the second phase of the Guitang River based on the topography. About 150,000 tons of lake water comes from rainwater or other Class V water bodies introduced into the Guitang River. After ecological purification, the lake water can reach surface water Class III, which not only reduces the treatment load of surrounding municipal pipelines and sewage treatment plants, but also realizes on-site purification of lake water for park irrigation, cleaning and replenishing rivers. Compared with the solution of using tap water, it greatly saves operation and management costs. According to the plan, 5 artificial wetlands of the same type will be built in the Guitang River Basin.
introduced the German Hannover Water Association to design it in cooperation, and integrate the concept of "sponge city" into the watershed governance and development. By using sustainable rainwater management technology, digital drainage systems, terminal rainwater and sewage diversion pump stations, and artificial wetland technology, "natural sponge bodies" are cultivated; all coastlines adopt ecological coastlines, and plant mats and aquatic plants are used for shoreline prevention and protection. Squares and roads are introduced into grass-planted ditches for regulation and storage, and after purification, they penetrate into the water body, and finally realize the circulation and integration of the Guitang River water system, replenish clear water and live water, and form a "sponge basin", so that the Guitang River can restore the true nature of the urban life river with a new attitude.

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Shanxi Province Black and Smell River Management Project Cases

Project name 34: Shanxi Province Jincheng Danhe Comprehensive Remediation

Project Overview: Danhe is the mother river of Jincheng City, Shanxi Province. It crosses the entire eastern part of Jincheng and is the largest tributary of Qinhe . It originates from Danzhuling, Gaoping City, Gaoping City, Zezhou County, and enters Qinhe in Qinyang County, Henan. The total length of the main stream in Jincheng is 128.3 km and the basin area is 2965 km2.
Jincheng Dan River has many tributaries, which is the main source of industrial, agricultural and domestic water in the basin. It is also the ultimate water body for domestic sewage, coal mines and industrial wastewater for residents in Jincheng. However, the basin is concentrated during the flood season and is mostly seasonal rivers, and there is no clean water supplement. Although the urban domestic sewage and industrial wastewater treatment facilities are gradually improved, it still poses a major threat to the water quality and ecological environment in the middle and lower reaches of the river. It can be seen from this that the Dan River in Jincheng is a typical river in northern my country, and its water quality improvement and ecological environment improvement will have a typical demonstration effect on the management of suburban rivers in northern my country.
Overview of the governance process: Although urban domestic sewage and industrial wastewater have been treated by sewage treatment plants to meet certain emission standards, it still poses a great threat to the water quality and ecological environment of suburban rivers. Therefore, deep treatment of water bodies entering the river is the difficulty and focus of river management in the north.The Danhe Comprehensive Remediation Project insists on giving equal importance to pollution control and ecological restoration, and combines deep sewage treatment and ecological restoration; the entire project is implemented in stages and segments based on the distribution characteristics of pollution sources and the characteristics of hydrological and water quality, and plays a typical demonstration role in the management of rivers in the northern suburbs.
1. Free surface flow wetland
2. Vertical flow artificial wetland
3. Permeability dam
4. Artificial aquatic plants technology
5. Aquatic plants construction
6. Wetland park construction

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Shenzhen black and smelly river management project case

Project name 35: Shenzhen Futian River Ecological Restoration

Project Overview: Futian River is located in the center of Futian District, Shenzhen, It belongs to the first-level tributary of the Shenzhen River . The total length of the main stream is 6.8km and the basin area is 15.9km2. The upper reaches of the basin are low-mountain hilly areas, with an average ground elevation of 23~10m and good vegetation coverage; the middle and lower reaches are urban areas that have been developed and built, with gentle ground slopes.
30 Over the past year, Shenzhen has transformed from a border town into a modern city. The large and small rivers of this city also underwent tremendous changes during this period, from clear view and fish and shrimp to fish and shrimps to black water and smelly smell, and fish and shrimps disappeared.
management process overview: In the Futian River management project, the river channel is replenished and the river channel is continuously flowed, and artificial oxygenation is carried out in the corresponding river sections to improve the dissolved oxygen in the water body, enhance the activity of aerobic bacteria, and improve the self-purification ability of the river channel. The use of reclaimed water to replenish river water has saved raw water and played a positive role in alleviating the contradiction of water resources in Shenzhen. Although there are many imperfect areas in its governance process and many problems arise in the later stages, in general, its restoration effect in the river water ecological environment is obvious, and there are many places worth learning and reference by our domestic colleagues.
1. Intercepting and storing
2. Garbage cleaning
3. Dilt dredging
4. River estuary gate
5. Flood control project
6. Water diversion and replenishing
7. Oxygenation aeration
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Taiwan black and smelly river management project case

Project name 36: Taiwan Dagou Creek Ecological Water Control

Project Overview: Taipei Dagou Creek was planned and built under the concept of "General Water Control" in Taipei City, and it embodies the concept of "upstream water conservation, midstream flood reduction, and downstream flood control". It is located in the upper reaches of the Dahu Park in Neihu District, Taipei City. It is a stream ditch that naturally preserves the ecological environment. The flow path is from Baishihu Mountain District, and it is connected to the Dahu Park through the box culvert sewer of Dahu Mountain Villa Street. It has a total length of about 3500 m and a water collection area of about 340 hm2. Most of the upper straits are secondary forests, while the downstream is mainly agricultural utilization. Dahu Mountain Villa Street in Neihu District, Taipei City was once threatened by heavy rain, and Dagou Creek often caused floods to be unable to vent due to heavy rain, causing erosion along the river bank, causing earth and rock flow disasters, and residents complained.
Overview of the governance process: After the "near-natural engineering method", the Dagou Creek area has rapid, slow, deep, shallow flowing water forms, and the geographical location is in the upper reaches, the water quality is clear, there are few pollutants, and the habitat is relatively diverse. The vegetation of the Binxi River has also preserved diversity and integrity, and the habitat environment is relatively natural. This ecological flood detention pond not only provides flood control functions, but also has multiple uses such as ecological protection, landscape quality, leisure and recreation.
1. Build
2. Build flood detention pond Dagou Creek
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Switzerland river management experience 37

management main contents: Switzerland has implemented a set of newly integrated river management measures, which mainly include: replacing comprehensive flood discharge with accumulation; reserve more space for the river; before taking engineering measures, it must give priority to formulating land development plans to maintain the overflow capacity of the river; using a variety of means to ensure various protection goals and resist floods; pay close attention to weather changes.
Governance features: The biggest feature of Swiss water governance is the differentiation of protected objects, so that limited resources can play their greatest role.In order to protect the water quality of rivers and lakes, the law stipulates that untreated industrial and domestic wastewater cannot be discharged directly into any nearby water body. Even rainwater on buildings near lakes must be introduced into the ground through eaves drainage troughs and can only be discharged into the water body after treatment. Due to strict environmental protection, dozens of rivers and thousands of lakes across Switzerland have been clear and transparent all year round, and the water quality is all in line with drinking water standards.
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French river management experience 38

governance main content: The characteristics of the French water management system can be summarized into three aspects: local responsibilities are heavy, and the public and private sectors are cooperative partnerships, collaborate on the basin scale and take all kinds of water use into consideration.
In addition to water supply and sewage treatment services, water management involves many responsibilities, such as the management of private rivers. In theory, it is the responsibility of the river owner to manage these rivers, but it is often managed by volunteer organizations across the community.
uses economic means to manage water resources and prevent pollution. Home and industrial users connected to municipal water supply networks, their water fees paid can recover the costs of drinking water configuration, sewage collection and treatment. Water prices vary depending on water treatment, management, supply conditions, and sewage discharge. The water bill also includes a pollution tax and resource recycling tax, which is levied by the Water Authority. These taxes are only a small fraction of the total water bill.

Governance features: France's water management principles, specific policies will need to be further expanded, covering all water use, and the impact on the entire environment must be evaluated. For those involved in water management, this will mean moving from “meaning norms”—to act according to law, without focusing on results to “result norms”—to do what needs to be done to achieve the quality objectives required by law.
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Japanese and Korean river management experience 39

management main contents: . Improve the drainage pipeline system and implement thorough sewage interception projects 2. River governance development should focus on protecting the ecological environment 3. Transform traditional river management methods and implement ecological improvement of rivers 4. Follow the laws of natural evolution of rivers, attach importance to the use of natural forces of rivers to restore the ecological environment 5. Further improve the environmental, ecology, culture, landscape and other functions of river governance projects

Governance characteristics: In order to build a charming waterfront space and a vibrant river, the ecological improvement project of rivers in Japan and South Korea can basically be summarized into the following three points: First, respect the ecological diversity of nature while meeting flood control and water resource utilization; second, build and restore a good water ecological environment in accordance with the existing natural conditions; third, take effective engineering measures and management measures to create an artificial river ecosystem, and do your best to protect the natural ecosystem.
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difficulty in treating black and smelly water bodies in urban areas, especially this involves the two issues of treatment and management. Both ends should be paid equal attention to it. It does not mean that it will be fine after it is cured. If the management is not in place, there will be a rebound. This is why "three parts of treatment and seven parts of management" is needed.

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