宜昌沙河黑臭水体综合治理方案

针对沙河水体污染的问题,对沙河周边污染源进行调查分析,主要污染源为沿岸24个排水口、污水处理厂尾水、地表径流及污染底泥释放。结合沙河污染物的分布特点,提出通过控源截污、提标治污、内源清除、生态修复、引水补清等措施削减污染负荷,修复水生态系统的综合治理方案,工程实施后沙河水体近期消除黑臭,远期主要指标达到地表水IV类的标准。

Comprehensive treatment scheme for black and odorous water of Shahe River in Yichang

In view of the problem of water pollution in Shahe River,we analyze the surrounding pollution sources of Shahe River.The main sources of pollution are 24 drainage outlets along the coast,tail water of sewage treatment plant,surface runoff and the release of contaminated sediment.Based on the distribution characteristics of the Shahe River pollutant,we put forward some measures such as controlling the pollution of the source and removing the pollution,improving the standards of the pollution treatment,removing the endogenous pollutions,restoring the ecosystem,diverting water and so on to reduce the pollution and repair the water ecosystem.After the implementation of the project,the black and odorous water of Shahe River has been recently eliminated,and the long-term main indexes reach the standard of surface water IV.