Sewage treatment methods depending on the mud off with a flocculant is not the same. If the process the body uses biochemical methods, ie sludge dewatering (which may contain parts of the primary sedimentation of mud), just as the sludge dehydrating agent cationic PAM can. If the process the body uses physicochemical methods, such as an enhancement, loaded magnetic separation process, the general is to add PAC quenched, and then add the anionic polyacrylamide flocculant, and finally add the cationic flocculant dehydration. Specific dosage should be based on wastewater quality. There are also many sewage treatment station, sludge dewatering directly added to PAC or other inorganic flocculants, this in frame filter, especially electronics factory or a small sewage treatment plant used widely. PAM at the time as the sludge dehydrating agent used generally in the ratio of 0.1% and water - 0.2%. Dissolved into a glue-like liquid after the vote is added to the sludge and then mixed treatment. Sludge ratio is generally 5% - 10%, and some lower non-ionic polyacrylamide, this should be determined according to the concentration of the sludge, it is best to determine the best dosage beaker through field experiments and the use of models. Different sludge, different agents, the treatment effect of different equipment, different management levels, the sludge is different. Polyacrylamide aqueous solution by the method of preparation when using PAM, the difficulties are not easy to dissolve cationic polyacrylamide, the high viscosity of the resulting solution is not conducive to dosing, even at very low concentrations of dissolved is very difficult, in preparation PAM should strive to do the following: ① and salt-free water and inclusion of appropriate use of neutral; ② use about 40 ℃, but not more than 60 ℃ warm water can accelerate the flocculant dissolution; ③ should be dissolved The PAM slow thrown into the water, there will be too difficult once spread sol group; not excessive when ④ stir to dissolve, or make polymer degradation, agitation should be 100-300 / min is appropriate; ⑤ solubility control on a dry basis 0.1% to 0.5% concentration; ⑥ use how much dissolved, diluent prone to degradation. Zwitterionic polyacrylamide, polyacrylamide, water provided by the Metropolitan Water Material Co., Ltd. Xinxiang City, the capital. Xinxiang City Metropolitan Water Material Co., Ltd. (www.jhjscl.com) strong, credible, Xinxiang in Henan water treatment chemicals and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jinghua water into the brilliant and you work for a better future!