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首页> 外文期刊>Environmental Science & Technology >Assessment of Multiple Sustainability Demands for Wastewater Treatment Alternatives: A Refined Evaluation Scheme and Case Study
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Assessment of Multiple Sustainability Demands for Wastewater Treatment Alternatives: A Refined Evaluation Scheme and Case Study

机译：评估废水处理替代品的多重可持续性需求：改进的评估方案和案例研究

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摘要

Current estimation schemes as decision support tools for the selection of wastewater treatment alternatives focus primarily on the treatment efficiency, effluent quality, and environmental consequences for receiving water bodies. However, these schemes generally do not quantify the potential to convert pollutants in wastewater to recoverable resources. This study proposes a refined evaluation scheme for choices of wastewater treatment processes that quantifies not only adverse environmental effects but also bioenergy and nutrient recovery indices. An original means of data processing was established and clear estimate indicators were consequently obtained to allow a smooth overall estimation. An array of wastewater treatment alternatives that meet three effluent limits were used as case studies to demonstrate how the present scheme works, simultaneously, to identify optimum choices. It is concluded in the overall estimation that the lower sustainability of wastewater treatment contributed by increasingly stringent discharge demands was offset and mitigated by the resource-recovery scenarios involved, and the scenario of recovering nutrients via excess-sludge composting was of more benefit. Thus, before tightening wastewater discharge requirements, one should bear in mind the situation of multiple sustainability by setting a goal to achieve not only the greatest reduction in environmental burden but also the maximum resource-recovery benefits.
机译：当前的估算方案作为选择废水处理替代品的决策支持工具，主要集中在处理效率，废水质量和对接收水体的环境影响上。但是，这些方案通常无法量化将废水中的污染物转化为可回收资源的潜力。这项研究针对废水处理工艺的选择提出了一种完善的评估方案，该方案不仅量化了不利的环境影响，而且量化了生物能源和养分回收指数。建立了原始的数据处理方式，并因此获得了清晰的估算指标，以实现平稳的总体估算。案例研究使用了一系列满足三个出水限值的废水处理替代方案，以展示本方案如何同时工作，以确定最佳选择。总的结论是，所涉及的资源回收方案抵消并缓解了排放要求日益严格导致废水处理的可持续性下降的问题，而通过过量污泥堆肥回收养分的方案则更有益处。因此，在收紧废水排放要求之前，应牢记多重可持续性的局面，其目标是不仅要实现最大程度地减轻环境负担，而且要实现最大的资源回收效益。

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  • 来源
    《Environmental Science & Technology》 |2012年第10期|p.5542-5549|共8页
  • 作者

    Xu Wang; Junxin Liu; Nan-Qi Ren; Han-Qing Yu; Duu-Jong Lee; Xuesong Guo;

  • 作者单位

    Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R. China;

    Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R. China;

    State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, P. R. China;

    Department of Chemistry, University of Science & Technology of China, Hefei, 230026, P. R. China;

    Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 106, Taiwan;

    Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R. China;

  • 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);
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  • 正文语种 eng
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