Study on the Removal Effect of Complex Flocculants on Phosphorus Elements in Wastewater
In order to improve the removal efficiency of phosphorus elements in the flocculation process of wastewater treatment,a flocculation system was prepared by preparing flocculants such as polymeric iron sulfate(PFS),polyaluminum chloride(PAC),and coagulation aids such as polypropylene(PP)and nonionic polyacrylamide(NPAM).The effects of composite ratio,dosage,and temperature on the phosphorus removal efficiency in the wastewater treatment process were investigated.The results showed that the combination of PFS(with a dosage of 1200 mg/L)and NPAM(with a dosage of 6 mg/L)resulted in a superior flocculation system,with significantly higher phosphorus removal efficiency than other combination flocculation systems or single flocculants,and reached a high value of 92.3%at a temperature of 30℃.This method is simple and highly feasible,providing a new path for reducing costs and increasing efficiency in the actual production process of treating phosphorus elements in wastewater by flocculation.