Research on Rapid Treatment Technology for Trace Phosphorus in Wastewater
In order to address the shortcomings of low phosphorus removal efficiency,complex process flow,and high cost of a single phosphorus removal agent,a compound phosphorus removal agent was proposed,and experimental verification was conducted on different compound phosphorus removal agent schemes.The results showed that the total phosphorus removal rate was 99.61%when 10 g/L ferrous sulfate and 8 g/L PFS solution were mixed in a 3:1 volume ratio,with a dosage of 2 mL during the reaction,a coagulation speed of 190 r/min,a coagulation time of 60 s,a coagulation time of 15 min,and a sedimentation time of 30 min,which increased the phosphorus removal rate by 0.71%compared to traditional single phosphorus removal agents.Moreover,the treated water was neutral and did not require further treatment,significantly improving the phosphorus removal rate and phosphorus removal economy.
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