Urban sewage refers to the wastewater produced by residents in their daily lives, such as toilet water after flushing toilets, wastewater after cooking and washing vegetables, bathing water, etc. It mainly comes from residential buildings and public buildings, such as residences, offices, schools, hospitals, shops, public places and industrial enterprise toilets.
Polyacrylamide
Polyacrylamide is generally divided into water treatment and sludge treatment in the urban sewage industry. Earlier, it was mostly used in the sludge dewatering process in the later stage of domestic sewage treatment plants. It used cationic polyacrylamide , which is generally used in centrifuges, belt filter press , and plate and frame filter press . . With the tightening of national environmental protection policies, most areas across the country are required to carry out Class A standard upgrades. Some municipal sewage cannot meet discharge standards after biochemical treatment, so it is necessary to add an advanced treatment process and then pass it through a high-efficiency sedimentation tank. . This process mainly adds inorganic flocculants ( polyaluminum chloride , aluminum sulfate , etc.) and anionic polyacrylamide to flocculate and precipitate together to reduce the indicators of harmful substances in the sewage and allow the sewage to meet the discharge standards.
Cationic polyacrylamide
As for the selection of suitable polyacrylamide in urban sewage treatment, it must be comprehensively selected based on the properties of sewage and sludge in the sewage treatment plant, the treatment process and the selected sludge dehydration equipment. Generally, the beaker selection experiment is done first, and then the pilot test is done on the machine. The more models you use in the selection experiment, the better you can choose the right model. Capxin Environmental Protection is a national polyacrylamide supply chain brand service provider. It has integrated 107 models of products in the industry and can accurately select polyacrylamide models with higher cost performance for customers. At the same time, it is also very important to control the stability of the product well. Only products with stable quality can ensure efficient and stable operation. Capxin Environmental Protection has professional technical engineers and advanced testing equipment to conduct strict double supervision and testing during warehousing and shipment to ensure product stability.
