‍‍What are the sewage treatment agents?

‍‍What are the sewage treatment agents?

Coagulation and sedimentation will use: flocculants (polyaluminum chloride, ferrous, etc.), coagulation aids (polyacrylamide), Fenton will use: ferrous, hydrogen peroxide, and advanced treatment will also use decolorizers, sodium hypochlorite, etc. , Phosphorus removal: lime will be used, and acid and alkali will be used for acid and alkali adjustment. In the sewage treatment system using various inorganic coagulants and flocculants such as aluminum salts and iron salts, if the amount of water to be treated exceeds the processing capacity of the clarification tank or the flocs in the water are too late to settle due to other factors and float outside, only It is necessary to add 0.1-2ppm of PAM to aid coagulation, and the settlement effect can be significantly improved. Moreover, the COD and chromaticity indicators of the treated water will also be significantly improved. As the name suggests, sewage treatment agent is an additive that needs to be used in sewage treatment, such as polyacrylamide, cationic polyacrylamide, anionic polyacrylamide, nonionic, zwitterionic polyacrylamide, polyaluminum chloride, etc. in different uses It can be used as a sewage treatment agent. The use of 0.3-2ppm can reduce the ratio of sludge and water in the biochemical pool and the sludge thickening pool, and improve the utilization rate of the biochemical pool and the sludge thickening pool. The sludge concentration can be increased from 3--10g/L to 30--100g/L, which greatly reduces the weight of sludge in the next step of sludge dehydration, and improves the efficiency of sludge dehydration equipment and personnel. The model and dosage and the drying of the mud cake after dehydration are different according to the type of sludge, so it is necessary to test and select various models of products. Polyacrylamide Classification Polyacrylamide Product Introduction: Polyacrylamide (PAM) is a water-soluble high molecular polymer, insoluble in most organic solvents, has good flocculation, can reduce friction resistance between liquids, and is classified according to ionic characteristics It can be divided into four types: non-ionic, anionic, cationic and amphoteric. ‍‍