2013•Guangzhou Chemical IndustryRequires access

Study on the Pretreatment of Pharmaceutical Wastewater from a Plant in Zibo by Fenton-flocculation

Xing Wang

Abstract

Pharmaceutical wastewater from a plant in Zibo was pretreated by Fenton-flocculation.The effects of pH value,Fenton reaction time,V(FeSO4):V(H2O2),flocculation reaction time,V(PAC):V(PAM) on the removal rate of CODCr and colority were studied during the experiment.The results of the test indicated that the optimal experimental conditions were pH value of 3.00,Fenton reaction time 40 min,V(FeSO4):V(H2O2) of 3:1,flocculation reaction time 20 min,and V(PAC):V(PAM) of 4:1.Under the reaction conditions,removal rate of CODCr could reach 68.9%,removal rate of colority could reach 99.79%,which could meet the need of follow-up treatment.

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Key concepts: Flocculation, Chemistry, Wastewater, Pulp and paper industry, Degradation (telecommunications), Sewage treatment, Nuclear chemistry, Chromatography