苏北缺水地区国控断面水质超标成因分析及控制对策(英文)

Cause of over Water Quality Standard and Control Measures of State-controlled Sections in Northern Water-deficient Area of Jiangsu

以徐州沛沿河国控断面为例,对其水质现状进行了监测,并分析了水质超标的原因。结果表明,沛沿河水污染物主要来自城区段,城区段各支流河沟污染物质随径流进入沛沿河,是造成李集桥断面水质超标的直接原因。因此,应加强排涝控制及闸涵维护;加快城市生活污水处理设施和配套管网建设;积极推进乡村分散式生活污水处理;防治农药化肥污染;控制畜禽养殖业污染;利用生态技术拦截面源污染。

Taking state-controlled section of Xuzhou Peiyan river as an example,the current water quality was monitored,and the cause of over water quality standard was analyzed.The results showed that the pollutants of Peiyan river were mainly from the urban river segment,and the immediate cause of over standard was tributary pollutants in urban river segment with the runoff into rivers.So we should strengthen the maintenance of drainage control and gate-han,accelerate the construction of urban wastewater treatment facilities and supporting pipe network,promote rural decentralized sewage treatment,prevent and control livestock and poultry pollution,pesticides and fertilizers pollution,and intercept non-point source pollution by using eco-technology.