The Experimental Study on the Fenton Oxidation Pretreatment of High Concentration Pharmaceutical Wastewater
Wang Hui-fan
Abstract
Wang Hui-fan
Abstract
The high concentration pharmaceutical wastewater was pretreated by Fenton method,the influence of Fenton reagent oxidation pretreatment of high concentration pharmaceutical wastewater was studied. The effect on CODCr treatment of pharmaceutical wastewater was discussed,the influence factor included the value of pH,the dosage of FeSO4·7H2O,and reaction time on Fenton oxidation. The experimental results showed that the pH value was 4,the reaction time was 100 min,the dosage of FeSO4·7H2O was 0. 024 mol /L,the dosage ratio of H2O2/Fe2 +was 11 ∶1,the CODCr removal was 52. 1%,and the biodegradability of the BOD /COD was 0. 57. Under this condition,the effect was the most ideal.
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The high concentration pharmaceutical wastewater was pretreated by Fenton method,the influence of Fenton reagent oxidation pretreatment of high concentration pharmaceutical wastewater was studied. The effect on CODCr treatment of pharmaceutical wastewater was discussed,the influence factor included the value of pH,the dosage of FeSO4·7H2O,and reaction time on Fenton oxidation. The experimental results showed that the pH value was 4,the reaction time was 100 min,the dosage of FeSO4·7H2O was 0. 024 mol /L,the dosage ratio of H2O2/Fe2 +was 11 ∶1,the CODCr removal was 52. 1%,and the biodegradability of the BOD /COD was 0. 57. Under this condition,the effect was the most ideal.
Key concepts: Wastewater, Chemistry, Biodegradation, Reagent, Dosage form, Nuclear chemistry, Pulp and paper industry, Chromatography