Calculation of water environmental capacity and pollutant sharing rate with water diversion: a case study of Qinhuai River | Zendy

Weiwei Song | Zendy; Yong Pang | Zendy; Yiping Li | Zendy; Peng Zhang | Zendy; Qing Xu | Zendy; Xingqian Fu | Zendy

Open Access

Calculation of water environmental capacity and pollutant sharing rate with water diversion: a case study of Qinhuai River

Author(s) -

Weiwei Song,

Yong Pang,

Yiping Li,

Peng Zhang,

Qing Xu,

Xingqian Fu

Publication year - 2018

Publication title -

water science and technology water supply

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.318

H-Index - 39

eISSN - 1607-0798

pISSN - 1606-9749

DOI - 10.2166/ws.2018.149

Subject(s) - environmental science , water quality , pollutant , sewage , environmental engineering , outfall , hydrology (agriculture) , pollution , interception , total maximum daily load , water pollution , tributary , water resource management , engineering , ecology , chemistry , geotechnical engineering , organic chemistry , environmental chemistry , biology , cartography , geography

With an overall consideration of hydrology, water quality and pollution sources, and the pollution source area, which affect the water quality, the Qinhuai River basin has been simplified as a control unit. Based on the establishment of the control unit water environmental model, the most unfavorable hydrological condition has been set up. The model comprehensively considers the effects of boundary water quality and the response relationship between the water quality of a cross-section and the general population. The allowable discharge of each generalization outfall can be calculated by the response relationship, and the chemical oxygen demand (COD), NH3-N, and total phosphorus (TP) water environment capacity of the control unit can be obtained. As shown in the results: in the near future (2017–2019) with 35% sewage interception and 30 m3/s water diversion; in the long term (after 2020) with 82% sewage interception, the water quality can reach the standard. Combined with the measured calculation, the paper also has made a quantitative analysis of the sharing rate of the main tributary and sewage pump station pollutant flux in the control unit and the whole basin within the administrative district.

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