安徽派河流域水污染特征及原因分析

Analysis on pollution characteristics and cause in Paihe River Basin

派河位于巢湖上游,是"引江济淮"的输水通道,其水质的优劣对"引江济淮"工程和巢湖的水质安全具有重要影响。根据派河流域的水质现状和入河污染物排放监测结果,分析了派河的水质现状及影响河流水质的主要因素。分析结果表明:派河水质目前没有达到水质管理目标,主要超标指标包括氨氮、总磷、化学需氧量等,影响派河水质的主要因素有面源污染、城镇与工业点源污染、畜禽养殖、码头建设等。针对派河流域污染源的分布情况,依照派河水质保护目标,分别提出了具体治理措施。

Paihe River is situated in the upstream of Caohu Lake Basin and is a water conveyance channel for the Project of Water Diversion from Yangtze River to Huaihe River, and its water quality has important influence to the water safety of the pro-ject and Caohu Lake. According to the water quality status and monitoring results of pollutant entering into Paihe River, the water quality of Paihe River and its main influential factors are analyzed. The analysis results show that the water quality of Paihe River does not meet the water quality control demand yet with main pollutants of ammonia nitrogen, total phosphorus, chemical oxygen demand, etc. The main influential factors to water quality of Paihe River are non-point pollution, point pollution from cities and industry, livestock and poultry breeding, wharf construction, etc. Based on the pollution sources distribution in Paihe River Ba-sin and according to water protection goal, concrete control measures are put forward respectively.