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首页> 外文期刊>Waste Management >Characterization of a joint recirculation of concentrated leachate and leachate to landfills with a microaerobic bioreactor for leachate treatment
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Characterization of a joint recirculation of concentrated leachate and leachate to landfills with a microaerobic bioreactor for leachate treatment

机译：用微好氧生物反应器对浓缩渗滤液和渗滤液联合再循环至垃圾填埋场进行渗滤液处理的表征

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摘要

With comparison of a traditional landfill, a joint recirculation of concentrated leachate and leachate to landfills with or without a microaerobic reactor for leachate treatment was investigated in this study. The results showed that the joint recirculation of concentrated leachate and leachate with a microaerobic reactor for leachate treatment could not only utilize the microaerobic reactor to buffer the fluctuation of quality and quantity of leachate during landfill stabilization, but also reduce the inhibitory effect of acidic pH and high concentrations of ammonium in recycled liquid on microorganisms and accelerate the degradation of landfilled waste. After 390 days of operation, the discharge of COD and total nitrogen (TN) from the landfill with leachate pretreatment by a microaerobic reactor was 7.4 and 0.9 g, respectively, which accounted for 0.7% and 2.6% of COD, 1.9% and 7.5% of the TN discharge from the landfills without recirculation and directly recirculated with leachate and concentrated leachate, respectively. The degradation of the organic matter and biodegradable matter (BDM) in the landfill reactors could fit well with the first-order kinetics. The highest degradation of the organic matter and BDM was observed in the joint recirculation system with a microaerobic reactor for leachate treatment with the degradation constant of the first-order kinetics of 0.001 and 0.002.
机译：通过与传统垃圾填埋场的比较，研究了浓缩渗滤液和渗滤液在有或没有微好氧反应器处理渗滤液的情况下联合循环到垃圾填埋场。结果表明，浓缩的渗滤液和渗滤液与微好氧反应器联合处理渗滤液不仅可以利用微好氧反应器缓冲垃圾渗滤液稳定过程中渗滤液的质量和数量的波动，而且可以降低酸性pH值和pH值的抑制作用。微生物回收液中的高浓度铵盐会加速垃圾填埋场的降解。运行390天后，通过微好氧反应器预处理渗滤液的垃圾填埋场的COD和总氮（TN）分别为7.4和0.9 g，分别占COD的0.7％和2.6％，1.9％和7.5％。垃圾填埋场中的TN排放量中的一半未经再循环，而分别直接由渗滤液和浓缩渗滤液再循环。垃圾填埋反应器中有机物和生物可降解物（BDM）的降解可以很好地适应一级动力学。在联合循环系统中，用微好氧反应器处理渗滤液的有机物和BDM的降解最高，一级动力学的降解常数分别为0.001和0.002。

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  • 来源
    《Waste Management》 |2015年第12期|380-388|共9页
  • 作者

    Ruo He; Xiao-Meng Wei; Bao-Hu Tian; Yao Su; Yu-Lan Lu;

  • 作者单位

    Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China;

    Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China;

    Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China;

    Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China;

    Hangzhou Foreign Language School, Hangzhou 310023, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Concentrated leachate; Joint recirculation; Microaerobic reactor; Landfill stabilization;

    机译：浓缩渗滤液;联合再循环;微氧反应器;垃圾填埋场稳定;

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