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首页> 外文期刊>Journal of Hazardous Materials >A new multiple-stage electrocoagulation process on anaerobic digestion effluent to simultaneously reclaim water and clean up biogas
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A new multiple-stage electrocoagulation process on anaerobic digestion effluent to simultaneously reclaim water and clean up biogas

机译：厌氧消化废水的新型多级电凝工艺，可同时回收水和净化沼气

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摘要

A new multiple-stage treatment process was developed via integrating electrocoagulation with biogas pumping to simultaneously reclaim anaerobic digestion effluent and clean up biogas. The 1 st stage of electrocoagulation treatment under the preferred reaction condition led to removal efficiencies of 30%, 81%, 37% and ＞99.9% for total solids, chemical oxygen demand, total nitrogen and total phosphorus, respectively. Raw biogas was then used as a reactant and pumped into the effluent to simultaneously neutralize pH of the effluent and remove H_2S in the biogas. The 2nd stage of electrocoagulation treatment on the neutralized effluent showed that under the selected reaction condition, additional 60% and 10% of turbidity and chemical oxygen demand were further removed. The study concluded a dual-purpose approach for the first time to synergistically combine biogas purification and water reclamation for anaerobic digestion system, which well addresses the downstream challenges of anaerobic digestion technology.
机译：通过将电凝与沼气泵集成在一起，开发了一种新的多阶段处理工艺，可同时回收厌氧消化废水并净化沼气。在优选的反应条件下进行的第一阶段电凝处理导致总固体，化学需氧量，总氮和总磷的去除效率分别为30％，81％，37％和＞ 99.9％。然后将原始沼气用作反应物，并泵入废水中，以同时中和废水的pH值并去除沼气中的H_2S。对中和后的废水进行电凝处理的第二阶段表明，在选定的反应条件下，可以进一步去除另外60％和10％的浊度和化学需氧量。该研究首次得出了一种将沼气净化和水再生协同结合用于厌氧消化系统的双重用途方法，很好地解决了厌氧消化技术的下游挑战。

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  • 来源
    《Journal of Hazardous Materials》 |2015年第21期|483-490|共8页
  • 作者

    Zhiguo Liu; David Stromberg; Xuming Liu; Wei Liao; Yan Liu;

  • 作者单位

    Biosystems and Agricultural Engineering, College of Engineering, Michigan State University, East Lansing, MI 48824, United States;

    Biosystems and Agricultural Engineering, College of Engineering, Michigan State University, East Lansing, MI 48824, United States;

    DQY Agricultural Technology Co. LTD, Beijing 100081, China;

    Biosystems and Agricultural Engineering, College of Engineering, Michigan State University, East Lansing, MI 48824, United States;

    Biosystems and Agricultural Engineering, College of Engineering, Michigan State University, East Lansing, MI 48824, United States,Department of Biosystems and Agricultural Engineering, Michigan State University, 203 Farrall Hall, East Lansing, MI 48824, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Electrocoagulation; Anaerobic digestion; Biogas purification; Nutrient removal; Water reclamation;

    机译：电凝;厌氧消化;沼气净化;营养去除;水回收;

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