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首页> 外文期刊>Water Research >Research on the enhancement of biological nitrogen removal at low temperatures from ammonium-rich wastewater by the bio- electrocoagulation technology in lab-scale systems, pilot-scale systems and a full-scale industrial wastewater treatment plant
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Research on the enhancement of biological nitrogen removal at low temperatures from ammonium-rich wastewater by the bio- electrocoagulation technology in lab-scale systems, pilot-scale systems and a full-scale industrial wastewater treatment plant

机译：在实验室规模的系统，中试规模的系统和大规模工业废水处理厂中通过生物电凝技术提高低温条件下富铵废水中生物脱氮的研究

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摘要

In cold areas, nitrogen removal performance of wastewater treatment plants (WWTP) declines greatly in winter. This paper systematically describes the enhancement effect of a periodic reverse electrocoagulation technology on biological nitrogen removal at low temperatures. The study showed that in the lab-scale systems, the electrocoagulation technology improved the biomass amount, enzyme activity and the amount of nitrogen removal bacteria (Nitrosomonas, Nitrobacter, Paracoccus, Thauera and Enterobacter). This enhanced nitrification and denitrification of activated sludge at low temperatures. In the pilot -scale systems, the electrocoagulation technology increased the relative abundance of cold adapted microorganisms (Luteimonas and Trueperaceae) at low temperatures. In a full-scale industrial WWTP, comparison of data from winter 2015 and winter 2016 showed that effluent chemical oxygen demand (COD), NH4+-N, and NO3-N reduced by 10.37, 3.84, and 136.43 t, respectively, throughout the winter, after installation of electrocoagulation devices. These results suggest that the electrocoagulation technology is able to improve the performance of activated sludge under low-temperature conditions. This technology provides a new way for upgrading of the performance of WWTPs in cold areas. (C) 2018 Elsevier Ltd. All rights reserved.
机译：在寒冷地区，冬季废水处理厂（WWTP）的脱氮性能大大下降。本文系统地描述了周期性反向电凝技术在低温下对生物脱氮的增强作用。研究表明，在实验室规模的系统中，电凝技术改善了生物量，酶活性和除氮细菌（亚硝基梭菌，硝化细菌，副球菌，Thauera和肠杆菌）的数量。在低温下增强了活性污泥的硝化作用和反硝化作用。在中试规模的系统中，电凝技术在低温下增加了适应冷空气的微生物（黄皮（Luteimonas）和马鞭草科（Trueperaceae））的相对丰度。在大规模工业污水处理厂中，对2015年冬季和2016年冬季数据的比较显示，整个冬季污水化学需氧量（COD），NH4 + -N和NO3-N分别减少了10.37、3.84和136.43 t ，在安装电凝设备后。这些结果表明，电凝技术能够在低温条件下提高活性污泥的性能。这项技术为提高寒冷地区污水处理厂的性能提供了一种新方法。 （C）2018 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Water Research》 |2018年第1期|77-89|共13页
  • 作者

    Li Liang; Qian Guangsheng; Ye Linlin; Hu Xiaomin; Yu Xin; Lyu Weijian;

  • 作者单位

    Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110819, Liaoning, Peoples R China;

    Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110819, Liaoning, Peoples R China;

    Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110819, Liaoning, Peoples R China;

    Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110819, Liaoning, Peoples R China;

    Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110819, Liaoning, Peoples R China;

    Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110819, Liaoning, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Electrocoagulation; Low temperature; Full-scale WWTP; Microbial community structure; Enzyme activity;

    机译：电凝;低温;大规模污水处理厂;微生物群落结构;酶活性;

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