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首页> 外文期刊>Journal of Cleaner Production >Environmental implications of increasingly stringent sewage discharge standards in municipal wastewater treatment plants: case study of a cool area of China
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Environmental implications of increasingly stringent sewage discharge standards in municipal wastewater treatment plants: case study of a cool area of China

机译：市政污水处理厂日益严格的污水排放标准对环境的影响：中国凉爽地区的案例研究

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摘要

For the protection of the aquatic environment and public health, China has implemented increasingly stringent sewage discharge standards for municipal wastewater treatment plants (WWTPs), but faces critical challenges in terms of additional environmental burdens. In this work, a life cycle assessment (LCA) approach was used to determine the adverse environmental consequences of increasingly stringent discharge standards in a domestic WWTP, and to identify the main contributors and propose alternatives that minimize negative environmental impacts. The LCA-derived findings indicate that tightening discharge levels will indeed reduce local eutrophication but without net environmental improvement satisfied. If the treated water is not required for further reuse, it appears more environmentally promising to establish WWTPs in regions that implementing moderate-level treatment than to upgrade existing WWTPs to much higher standards, except in conservation zones, areas of high population density, and in watersheds with less resilience to pollution. Overall, environmental improvement can be satisfied by introducing consistent "cradle-to-cradle/grave" legislation for WWTPs. It was implicated that decision makers should therefore emphasize energy conservation and wastewater-derived resource recovery approaches to the operation of WWTPs. (C) 2015 Elsevier Ltd. All rights reserved.
机译：为了保护水环境和公共卫生，中国对市政污水处理厂（WWTP）实施了越来越严格的污水排放标准，但在额外的环境负担方面面临着严峻的挑战。在这项工作中，使用生命周期评估（LCA）方法来确定国内污水处理厂日益严格的排放标准对环境造成的不利影响，并确定主要的贡献者并提出可将对环境的负面影响最小化的替代方法。 LCA得出的结果表明，严格的排放水平确实会减少局部富营养化，但不能满足净环境改善的要求。如果不需要处理后的水作进一步的再利用，则在保护区，人口密度高的地区和保护区之外，在实施中度处理的地区建立污水处理厂似乎比将现有的污水处理厂升级到更高的标准具有更大的环境前景。流域，对污染的抵御能力较弱。总体而言，通过为污水处理厂引入一致的“从摇篮到摇篮/坟墓”法规，可以满足环境改善的要求。因此，决策者应在污水处理厂的运行中强调节约能源和废水衍生资源的方法。 （C）2015 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Journal of Cleaner Production》 |2015年第1期|278-283|共6页
  • 作者

    Wang Xiu-Heng; Wang Xu; Huppes Gjalt; Heijungs Reinout; Ren Nan-Qi;

  • 作者单位

    Harbin Inst Technol, Sch Municipal & Environm Engn, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China;

    Chinese Acad Sci, Res Ctr Ecoenvironm Sci RCEES, Beijing 100085, Peoples R China|Chinese Acad Sci, RCEES, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100085, Peoples R China;

    Leiden Univ, Inst Environm Sci, Leiden, Netherlands;

    Leiden Univ, Inst Environm Sci, Leiden, Netherlands;

    Harbin Inst Technol, Sch Municipal & Environm Engn, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China;

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

    Wastewater treatment; Discharge standard; Environmental impact; Life cycle assessment; Sustainability;

    机译：废水处理排放标准环境影响生命周期评估可持续性;

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