Optimization of Process Conditions on Landfill Leachate Treatment by CWAO Method

Yong Li Zhang; Yan Ling Sun

doi:10.4028/www.scientific.net/AMR.849.137

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Influence Factors of Landfill Leachate Treatment with CWAO Method
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Characterization and Process Optimization of Transition Metal Compound Catalyst in CWAO Applications
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 849Optimization of Process Conditions on Landfill...

Optimization of Process Conditions on Landfill Leachate Treatment by CWAO Method

Abstract:

the landfill leachate was disposed by Catalytic Wet Air Oxidation (CWAO) method, and the monitoring indexes include COD_Cr, decolorization and pH. The results showed that the COD_Cr removal rate and the decolorization rate of landfill leachate increased with the increase of reaction temperature and reaction pressure. However, they first rose then reduced with the increase of catalyst dosage. Under the condition of the catalyst concentration 300 mg/L of Co (NO₃)₂, at the reaction pressure of 3.5 MPa and the reaction temperature of 180 °C, the COD_Cr removal rate and the decolorization rate reached 56.8% and 83.7%, respectively, and pH was 8.45 at the reaction time of 90 min.

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Periodical:

Advanced Materials Research (Volume 849)

Pages:

137-141

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.849.137

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Online since:

November 2013

Authors:

Yong Li Zhang*, Yan Ling Sun

Keywords:

COD_Cr Removal Rate, CWAO, Decolorization Rate, Effluent pH, Landfill Leachate

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