2013•Applied Chemical IndustryRequires access
Pretreatment of organic chemical wastewater with high chroma using Fenton reagent
Zhang Wen-b
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Abstract
The organic chemical wastewater from a chemical plant in Lanzhou was investigated by Fenton reagent.The result showed that the optimum experimental conditions were as follows: H2O2 concentration 0.15 mol / L,FeSO4 concentration 4 mmol / L,pH = 3 and 90 min.Under the optimum reaction conditions,the removal rate of chroma was more than 98% and the effluent was colorless,and the removal rate of COD Cr reached more than 80%.Furthermore,the B / C of effluent was enhanced greatly to 0.49.The result of the pretreatment was very satisfied,and the method was in favor of next biochemical treatment.