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Quantitative analysis of eco-economic benefits of reclaimed water for controlling urban dust

机译：对城市尘埃再生水生态经济效益的定量分析

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摘要

With the acceleration of urbanization and industrialization, urban air pollution, especially dust pollution, has become a global problem. The traditional method to control dust problem is to spray roads with tap water. However, this method will inevitably lead to a huge waste of water resources. Using reclaimed water instead of tap water for dust control can not only achieve the same effect of reducing dust and haze, but also save water resources. In addition, the saved tap water can be used for production and life, thereby obtaining additional benefits. In order to quantify the eco-economic benefits of sprinkling water for dust control, a quantitative method was proposed based on the emergy theory of ecological economics. It was used to calculate the cost of different water resources, the cooling and humidifying benefit, the dust control and haze reduction benefit, and the other use benefit. Taking the 2017 data of Zhengzhou as an example, the results indicated that the cost of using reclaimed water to control dust was reduced by 54%. The total benefit of using reclaimed water was about 1.30-1.80 times that of using tap water, and the net benefit was 4.65-7.17 times. Therefore, the use of reclaimed water instead of tap water for road dust control has advantages of low cost and high eco-economic benefits. The method proposed in this paper can provide quantitative basis for the popularization of using reclaimed water to dust control in cities with serious air pollution and water resource shortage.
机译：随着城市化和工业化的加速，城市空气污染，特别是粉尘污染，已成为全球性问题。控制尘埃问题的传统方法是用自来水喷洒道路。然而，这种方法将不可避免地导致水资源的巨大浪费。使用再生水而不是自来水进行防尘，不仅可以达到减少粉尘和雾度的相同效果，还可以节省水资源。此外，保存的自来水可用于生产和生命，从而获得额外的益处。为了量化洒水的生态经济效益，基于生态经济学理论，提出了定量方法。它用于计算不同水资源的成本，冷却和加湿效益，粉尘控制和雾度减少效益，以及其他使用益处。以2017年郑州数据为例，结果表明，使用再生水控制粉尘的成本降低了54％。使用自来水的使用再生水的总益处约为1.30-1.80倍，净利润为4.65-7.17倍。因此，使用再生水而不是自来水进行道路粉尘控制具有低成本和高生态经济效益的优点。本文提出的方法可以为在具有严重空气污染和水资源短缺中的城市中使用再生水来普及的定量基础。

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  • 来源
    《Environmental Geochemistry and Health》 |2020年第9期|2963-2973|共11页
  • 作者

    Lv Cuimei; Zhang Wuyue; Ling Minhua; Li Huiqin; Zhang Guangjun;

  • 作者单位

    Zhengzhou Univ Sch Water Conservancy Sci & Engn Zhengzhou 450001 Henan Peoples R China;

    Zhengzhou Univ Sch Water Conservancy Sci & Engn Zhengzhou 450001 Henan Peoples R China;

    Zhengzhou Univ Sch Water Conservancy Sci & Engn Zhengzhou 450001 Henan Peoples R China;

    Zhengzhou Univ Sch Water Conservancy Sci & Engn Zhengzhou 450001 Henan Peoples R China;

    Zhengzhou Univ Sch Water Conservancy Sci & Engn Zhengzhou 450001 Henan Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);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

    Reclaimed water; Dust control; Eco-economic benefits; Emergy theory; Zhengzhou city;

    机译：再生水;防尘;生态经济效益;物质理论;郑州市;

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