某河区段水质现状调查分析评价

The Evaluation of the Investigation and Analysis of Water Quality in a River Section

在分析河北武烈河流域承德市区段主要污染类型及污染状况的基础上,发现武烈河承德市区段水体污染源主要为工业、生活和畜禽养殖混合污染,且污染情况复杂,入河量大,基于此分别设置上游武元桥、中游武衡桥和下游张村河入河口三个监测断面,分别对上游武烈河流入七家茅荆坝片区前的水质状况、武烈河流经七家茅荆坝片区并接纳片区污染物后的水质状况、武烈河下游张村河入河口接纳张村河、李村河、大清沟等污水后的水质状况进行分析与评价。结果表明,监测所选择的三个断面中上游武元桥和中游武衡桥断面水质一般,下游张村河入河口断面且因水体流速减缓,自净能力降低,污染物大量富集,水质较差,必须采取切实可行的措施加强流域河段水体污染治理。

Based on the analysis of the main pollution types and general situation of Chengde urban section of Wulie River Basin in Hebei Province,it is found that the main sources of water pollution in Chengde urban section of Wulie River are mixed pollution of industry,life and livestock breeding,and the pollution situation is complex and the river inflow is large. Based on this,three monitoring sections of upstream Wuyuan bridge,midstream Wuheng bridge and downstream Zhangcun River estuary are set respectively to analyze and evaluate the water quality of upstream Wulie River before it flows into Qijiamaojingba area,the water quality of Wulie River after it flows through Qijiamaojingba area and receives pollutants from the area,and the water quality of downstream Zhangcun River after it receives sewage from Zhangcun River,Licun River and Daqinggou. The results show that the water quality of Wuyuan bridge section in the upper reaches and Wuheng bridge section in the middle reaches is general in the three sections selected for this monitoring,and the water quality of the downstream Zhangcun River Estuary section is poor due to the slow down of water flow velocity,the reduction of self purification capacity,and the enrichment of pollutants. Therefore,feasible measures must be taken to strengthen the water pollution control in the river reaches of the basin.