Study on A2O Method for Co-Treatment of Landfill Leachate and Municipal Sewage

Si Ruo Zhang; Tie Jian Zhang; Jun Liang Liu; Yan Li

doi:10.4028/www.scientific.net/AMR.356-360.2908

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 356-360Study on A2O Method for Co-Treatment of Landfill...

Study on A²O Method for Co-Treatment of Landfill Leachate and Municipal Sewage

Abstract:

To solve the problem of huge investment and high difficulty of individually treating landfill leachate, the experiment adopted A²O simulated wastewater treatment plant to treat landfill leachate combined with municipal sewage.Under the conditions of 11h HRT, 1.0-2.0mg/L DO concentration, 200% mixture reflux proportion, 80% sludge reflux proportion and 20d sludge age, adding langdfill leachate to municipal sewage with the proportion of 1:1500, 1:1000 and 1:600, the effluent concentration can achieve the first order A standard of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant. When the proportions come to 1:400 and 1:200,the effluent quality can’t reach the standard. After a comprehensive consideration of water quality and landfill leachate treatment amount in practice, we can draw a conclusion that the 1:600 proportion is the most suitable one of adding landfill leachate to municipal sewage.

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Periodical:

Advanced Materials Research (Volumes 356-360)

Pages:

2908-2913

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.356-360.2908

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Online since:

October 2011

Authors:

Si Ruo Zhang, Tie Jian Zhang, Jun Liang Liu, Yan Li

Keywords:

A²O Process, Co-Treatment, Landfill Leachate, Municipal Sewage, Proper Proportion

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References

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