仁寿县球溪河流域水环境综合治理工程设计

The Design of Water Environment Comprehensive Treatment Engineering in Qiuxi River Basin of Renshou County

球溪河是沱江的一级支流,其水质、水量对沱江水环境有重要影响。球溪河流域在仁寿县境内共有15条河道,河道污染物来源有污水处理厂尾水、农村生活污水、工业废水、农业面源污染及畜禽养殖废水等。水质监测数据显示,金马河等8条河道现状水环境较差,部分河段存在TP、NH3-N超标问题,综合考虑地理位置、功能定位及紧急程度,拟对上述8条河道进行水环境综合治理。文章从河道清淤、河口湿地建设、滨河湿地缓冲带建设三个方面进行了具体的工程设计,旨在改善球溪河流域水环境。

Qiuxi River is the first-level tributary of Tuojiang River,and its water quality and quantity have an important impact on the water environment of Tuojiang River.There are 15 river channels in Qiuxi River Basin in Renshou County.The sources of pollutants in the river channels include tail water from sewage treatment plants,rural domestic sewage,industrial wastewater,agricultural diffused pollution and livestock and poultry breeding wastewater.The water quality monitoring data show that the current water environment of eight rivers such as Jinma River is poor,and there are problems of TP and NH3-N exceeding standard in some river sections.Considering geographical location,functional orientation and emergency degree,it is planned to carry out comprehensive water environment treatment for the above eight rivers.This paper has carried out specific engineering design from three aspects of river dredging,estuarine wetland construction,and riverside wetland buffer zone construction,aiming to improve the water environment of Qiuxi River Basin.