The application of zero-water discharge system in treating diffuse village wastewater and its benefits in community afforestation

文献类型： 外文期刊

第一作者： Wu, Yonghong

作者： Wu, Yonghong;Xia, Lizhong;Hu, Zhengyi;Yang, Linzhang;Wu, Yonghong;Hu, Zhengyi;Liu, Shuzhi;Liu, Hongbin;Nath, Bibhash;Zhang, Naiming

作者机构：

关键词： afforestation;humic acid;diffuse village wastewater;soil filter;zero-water discharge system

期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：8.071； 五年影响因子：8.35 ）

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收录情况： SCI

摘要： The proposed on-site zero-water discharge system was comprised of four main components: anaerobic tank, aerobic bioreactor, activated soil filter and water-collecting well. The results demonstrate that at 350 m~3 day~(-1) of hydraulic load, the system can effectively remove pollutants from the wastewater, e.g., 86% removal of COD; 87% removal of SS; 80% removal of TP and 71% removal of TN. The growth states of the grasses, macrophytes and arbors in the activated soil filter were better than the control. The life of the activated soil filter was estimated to be ~12-15 yrs, based on the laboratory microcosm studies. However, humic acid contents and soil porosity have suggested that the activated soil filter was able to regenerate itself and thereby prolonging its life by reducing clogging of the pores. The results suggest that the zero-water discharge system was a promising bio-measure in treating diffuse village wastewater and benefiting community afforestation.

分类号： X5

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