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首页> 外文期刊>Desalination and water treatment >Investigation on and analysis of pollution sources of Haojia village reservoir in Yibin, Sichuan Province, China
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Investigation on and analysis of pollution sources of Haojia village reservoir in Yibin, Sichuan Province, China

机译：四川省宜宾市郝家村水库污染源调查与分析

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摘要

Given the situation of pollution in Haojia Village Reservoir, the chemical oxygen demand (COD), total nitrogen and total phosphorus were analyzed, which showed that the reservoir water quality belonged to Grade IV surface water. According to the analysis on reservoir water pollution, the main exogenous input was excessive agricultural application of nitrogen and phosphorus fertilizers, and the major endogenous sources of water pollution were sediments of COD, total nitrogen and total phosphorus. Moreover, fencing, fish farming, and sewage runoff were also important causes of water quality variation in the reservoir. It shows that the environmental capacity of Haojia Village Reservoir is lower than that of the stored pollutants. The reservoir is under a stable stratified water temperature structure, which is less conducive to water self-purification. The water quality of the reservoir might continue to deteriorate.
机译：针对郝家村水库的污染情况，对化学需氧量，总氮和总磷进行了分析，表明该水库水质属于地表Ⅳ级水。根据对水库水污染的分析，主要的外源输入是农业过量施用氮磷肥，水污染的主要内源是化学需氧量，总氮和总磷的沉积物。此外，围栏，养鱼和污水径流也是造成水库水质变化的重要原因。结果表明，郝家村水库的环境容量低于污染物的存储容量。该水库处于稳定的分层水温结构下，不利于水的自净。水库的水质可能会继续恶化。

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