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首页> 外文期刊>Journal of water reuse and desalination >Feasibility of on-site grey-water reuse for toilet flushing in China
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Feasibility of on-site grey-water reuse for toilet flushing in China

机译：中国厕所在现场灰水重新利用的可行性

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Although the total reuse rate of municipal wastewater was 8.8% in China in 2012, water crisis is forcing China to increasingly develop water reuse. Urban reuse is comparatively poor and has significant potential to be promoted in China. It is a sensitive matter whether to include kitchen wastewater in grey-water reuse in water- deficient areas when kitchen wastewater accounts for a large proportion of total domestic water consumption. Concentrations of chemical oxygen demand, BOD5(biochemical oxygen demand), and total organic carbon in kitchen wastewater are comparatively lower in China than in other countries, but a high concentration of nitrogen from washing tableware and rice makes it difficult to meet nitrogen requirements in Chinese guidelines. Whether kitchen wastewater should be included in grey-water reuse in China needs further study. Aerobic biological processes combined with physical filtration and/or disinfection is preferred in grey-water treatment, and how to balance the investment and treatment costs with reuse criteria still needs to be researched further. The promotion of reclaimed water for toilet flushing faces resistance in China. The necessity and effectiveness of existing restrictions in water reuse guidelines for toilet flushing in China are in doubt and need further discussion.
机译：尽管2012年中国城市废水的总重用率为8.8％，但水危机迫使中国越来越发展水重用。城市重用相对较差，并在中国促进了巨大潜力。当厨房废水占国内外耗水量的大比例时，无论是在缺水区域中含有灰水重复使用的灰水重复使用的厨房废水是一种敏感的事情。化学需氧量浓度，BOD5（生化需氧量）和厨房废水中的总有机碳比在其他国家比较较低，但从洗涤碗和水稻中高度浓度的氮使得难以满足中文的氮要求指导方针。无论厨房废水是否应包括在中国的灰水中，需要进一步研究。在灰水处理中优选有氧生物过程与物理过滤和/或消毒，以及如何进一步研究如何使用重用标准进行平衡的投资和治疗费用。促进中国卫生间冲洗的回收水。有疑问，在中国冲洗水中厕所厕所的现有限制的必要性和有效性令人怀疑并需要进一步讨论。

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