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Study on factors of removal of COD_(cr) from old landfill leachate by fenton reagent

Tao Huchun

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Abstract

The factors that affected the removal of chemical oxygen demand(CODcr) from old landfill leachate treated by Fenton reagent, such as sample's initial pH value, H2O2/Fe2+ dosing ratio, H2O2 dosage and reaction time were investigated in this paper. The results showed that the optimal condition as following, initial pH value of landfill leachate was 4, H2O2/Fe2+ dosing ratio was 5:1, H2O2 dosage was 0.05 mol·L-1 and reaction time was 2.5 h. As a result, the removal rate of CODcr from Old landfill leachate was 73.1% under this condition.

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What this paper is about

The factors that affected the removal of chemical oxygen demand(CODcr) from old landfill leachate treated by Fenton reagent, such as sample's initial pH value, H2O2/Fe2+ dosing ratio, H2O2 dosage and reaction time were investigated in this paper. The results showed that the optimal condition as following, initial pH value of landfill leachate was 4, H2O2/Fe2+ dosing ratio was 5:1, H2O2 dosage was 0.05 mol·L-1 and reaction time was 2.5 h. As a result, the removal rate of CODcr from Old landfill leachate was 73.1% under this condition.

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Available abstract

The factors that affected the removal of chemical oxygen demand(CODcr) from old landfill leachate treated by Fenton reagent, such as sample's initial pH value, H2O2/Fe2+ dosing ratio, H2O2 dosage and reaction time were investigated in this paper. The results showed that the optimal condition as following, initial pH value of landfill leachate was 4, H2O2/Fe2+ dosing ratio was 5:1, H2O2 dosage was 0.05 mol·L-1 and reaction time was 2.5 h. As a result, the removal rate of CODcr from Old landfill leachate was 73.1% under this condition.

Key concepts: Leachate, Reagent, Fenton's reagent, Chemical oxygen demand, Chemistry, Environmental chemistry, Biodegradation, Hydrogen peroxide

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