Optimizing operating conditions for advanced treatment of landfill leachate using the coagulation-fenton oxidation method

• Autorzy: Bu G. , Xian P. , Zhan L. , Feng X. , Tang H.
• Języki publikacji: EN

Abstrakty

EN

High COD concentrations in effluent, high membrane loading, and frequent congestion on the membrane are three common shortcomings of treating landfill leachate using the biodegradation technique. Accordingly, advanced treatment of the bio-chemical effluent of landfill leachate by Fenton oxidation combined with coagulation technique were performed in this study. The experiment was designed with the response surface method (RSM) considering three factors, i.e., the dosages of polymeric ferric sulfate (PFS), n(H2O2)/ n(Fe2+), and H2O2. Experimental results show that the fitting curve has high significance and sensitivity, and the prediction error of the COD removal rate is smaller than ±5%. The results also show that H2O2 has the greatest influence on COD removal rate, while PFS has the smallest. The optimal operating conditions for landfill leachate with a COD concentration of 2,000 mg/l are: the dosages of PFS (the concentration is 0.05g/ml), and H2O2 (30%) and n(H2O2)/n(Fe2+) are 67 ml, 17 ml, and 6 respectively. The optimized COD removal rate can reach as high as 92.11%.

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2016
• Tom: 25
• Numer: 5
• Opis fizyczny: p.1863-1871,fig.,ref.

Twórcy

autor

Bu G.

• School of Environment, Guangxi University, Nanning 530004, Guangxi Zhuang Autonomous Region, China

autor

Xian P.

• School of Environment, Guangxi University, Nanning 530004, Guangxi Zhuang Autonomous Region, China

autor

Zhan L.

• School of Environment, Guangxi University, Nanning 530004, Guangxi Zhuang Autonomous Region, China

autor

Feng X.

• School of Environment, Guangxi University, Nanning 530004, Guangxi Zhuang Autonomous Region, China

autor

Tang H.

• School of Environment, Guangxi University, Nanning 530004, Guangxi Zhuang Autonomous Region, China

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Identyfikatory

DOI

10.15244/pjoes/63067