咸阳市地表水水质现状与对策研究

Present Situation and Countermeasure Analysis of Surface Water in Xianyang

以咸阳市渭河流域地表水为调查对象,利用断面水质评价法和河流水质评价法对咸阳市内渭河流域水质环境进行了评估,寻找导致水污染的因素,结合现状,对水污染治理提出了合理的建议。总体看来,咸阳市流域内水质良好。集中式饮用水水源地水质达到陕西省提出的水质目标;断面水质除屈家咀、北屯桥、漆水河上游断面外其余断面水质达到或优于水质目标;河流水质总氮指标含量较高,呈现轻度富营养状况;污水处理厂出水口水质粪大肠菌群存在超标问题。

Taking the surface water of Weihe river basin in Xianyang city as the object of investigation,the water quality environment of Weihe river basin in Xianyang city was evaluated by using the method of section water quality evaluation and river water quality evaluation,and the factors leading to water pollution were found out.Combined with the present situation,reasonable suggestions for water pollution control were put forward.In general,the water quality of Xianyang river basin was good.The quality of centralized drinking water sources met the water quality target set by Shaanxi province,section water quality reached or exceedd 2021 water quality target except for sections in Qujiazui,Beitunqiao and the upper reaches of Qishuihe river.The content of total nitrogen index in river water quality was relatively high,presenting a slight eutrophication state.The fecal coliform group of the effluent of sewage treatment plant was exceeding standard.