How polyacrylamide as aluminum sulfate coagulant

Aluminum sulfate polyacrylamide can be suspended solids in the sewage play coagulation, sedimentation . Sewage flocculant is used . Aluminum sulfate polyacrylamide price than low prices many times , the effect was not good polyacrylamide . And if the use of aluminum sulfate polyacrylamide sewage added as its coagulant , can play a coagulant effect is obvious, turbidity and organic matter removal efficiency have been significantly improved.
How polyacrylamide as aluminum sulfate coagulant
Polyacrylamide as an inorganic coagulant aluminum sulfate coagulant , mainly due to some chain polyacrylamide macromolecules , play  chrome green and network bridging flocculation flocculation effect , because of its electrostatic attraction , hydrogen bonding, hydrophobic keys and features reaction to colloid charge neutralization and bridging role , so that in the adsorbed particles asked to form a " bridge ." Produce floc . Thus speeding up the sinking particles , forming a large and dense alum . The use of long-chain molecules bridging role in the formation of an inorganic coagulant floc surrounded. The floc closely. Particle sedimentation rate accelerated. Flocculation through further reaction . The particles in the water gradually extruded particle sedimentation rate of speed so that thus the coagulation effect is plastic processing aid  improved. Adding aluminum sulfate polyacrylamide in dosage can be achieved when there are fewer good coagulation effect , ie coagulation effect in the same circumstances, plus polyacrylamide coagulant than without when aluminum sulfate dosage to save much more .
Polyacrylamide coagulant effect
 Polyacrylamide coagulant aid is to accelerate the coagulation process procedure , increase the quality and density of the particles to be more rapid precipitation. While strengthening the role of bonding and bridging , and the flocculation and sedimentation of coarse particles have a greater surface , can give full play to the role of adsorption swept volume , improve clarifying effect .
Polyacrylamide flocculant , is often used  PVC heat stabilizer for profile as an inorganic coagulant coagulant , alum formed joint processing large , fast settling , flocculation , the large and solid particle sedimentation rate is greatly enhanced , so treatment is better . Aluminum sulfate in polyamine coagulant effect of turbidity and organic matter removal efficiency have been improved , the overall cost reduction, wastewater treatment cost savings for the enterprise .