Polyaluminium chloride and cationic polyacrylamide used in water treatment Most used water treatment agent is polyaluminum chloride and polyacrylamide, polyacrylamide, according to the type can be divided into cationic polyacrylamide, anionic polyacrylamide, Non-ionic polyacrylamide and amphoteric polyacrylamide, polyaluminum chloride and cationic polyacrylamide whether it can be used at the same time, Xiaobian bring you to understand. Flocculants and cationic polyacrylamide should be first tested for analysis 1. First laboratory analysis, if the solid-liquid surface potential of suspended solids negative (generally negative), you can use polyaluminum chloride and poly Acrylamide scheme. 2. Determine the amount of PAC: also need to do a dosage test in the laboratory to determine the amount of PAC alone to use and turbidity effect curve. 3. If the PAC is added in the optimum amount of A alone, the actual usage may be set at 1 / 4-1 / 3 of the A value, and the remaining work will be given to the cationic polyacrylamide To be done. 4. Laboratory to determine the addition of PAC and polyacrylamide ratio: that is, the use of PAC in the A value of 1/3 circumstances, to determine how much polyacrylamide to polyacrylamide coagulation effect Bridge the most suitable. Through experiments, the use of aluminum chloride and polyacrylamide to determine the proportion.