洨河流域地表水质与地下水质污染研究

由于洨河上游天然来水量很少,现有水体主要是接纳生活和工业污水,通过对洨河3个地表水水质站资料的分析发现,沿岸地表水水质属劣Ⅴ类,污染严重,主要超标参数为氨氮、化学需氧量、挥发酚。对沿岸53眼井的水质资料进行分析后发现,地下水水质良莠不齐,水质级别在Ⅱ类-Ⅴ类之间,主要超标参数为总硬度、溶解性总固体等。通过分析部分水质参数发现,地下水水质已受到地表水渗透影响和其他污染。

Study of surface water and underground water pollution in the Xiao River basin

Because the upstream provides little water,the existing water of the Xiao River mainly comes from life and industrial wastewater.Data analysis of three surface water quality stations by the river shows that the surface water quality along the bank is worse than grade V,and the pollution is serious.The main parameters exceeding the standard are ammonia nitrogen,chemical oxygen demand and volatile phenol.Analysis of water quality of 53 wells along the bank shows that the underground water quality is uneven,the water quality level is between classⅡand class V,and the main parameters exceeding the standard are the total hardness and total dissolved solids.Through the analysis of some quality parameters,it is found that the groundwater has been affected by the surface water infiltration and other pollution.