How to increase the concentration of polyacrylamide

The quality of polyacrylamide molecules decreases with the increase in concentration. This is an increase in the concentration of use. The heat of the gathering cannot be quickly dissipated and cooled.anionic polyacrylamide (pam) The temperature of the formation of the gathering body becomes higher, and the excitation speed accelerates.

It is learned from here that the polyacrylamide monomer If the concentration increases, the kinetic chain length will fall. There is a situation that the molecular weight drops in the late stage of the reaction, and the temperature of the reaction system rises, which is the end of the chain reaction speed increases, and the molecular weight of polyacrylamide will also fall. .

Electroplating plant (plating pick) wastewater contains Cd2+ and CN". The traditional treatment method is to oxidize CN- with hypochlorite dIo under alkaline premise ((pH>11), make it become cyanogen chloride and hydrolyze into cyanogen Salt, Cd2+ is deposited as a hydroxide for removal. Because the tin hydroxide particles are too small, the accumulation is usually insufficient, so it will stay in the wastewater and cause environmental pollution.

This problem can be solved by adding polyacrylamide flocculant. F eC I and A12(SO,)3 can remove Cd2+ from wastewater when the pH is above 9.0.polyacrylamide powder  After PH>10, use A12( S0.)3 Office understands the phenomenon of colloidal resuspension, and the wastewater treated with polyacrylamide will not produce such a situation.