渭河干流(陕西段)水污染现状及控制对策研究

Research on current water contamination and controlling strategy of Weihe River′s main stream

目的找出渭河水污染产生的原因,提出控制渭河水污染对策。方法在大量现场监测数据的基础上,利用标准比照法分析渭河干流(陕西段)的水质现状,利用相关分析法分析水质与水量的关系及水质变化趋势。结果从高锰酸盐指数和氨氮两个主要污染指标看,渭河干流水质2002年以后有逐年好转的趋势;生态用水的严重缺乏和水污染物排放量大是导致渭河污染严重的重要原因。结论提出合理调配水资源、调整区域工业发展战略、加强城市水污染源防治力度、提高种养殖业的科技水平等4方面控制渭河干流水污染措施。

Aim To seek factors which caused Weihe River′s water contamination and propose strategies on pollution controlling.Methods Utilizing reference standard to analyze water quality′s current status of Weihe River′s main stream（Shaanxi terminal） and interrelated analysis method to analyze relations between water quality and quantity and water quality variation tendency based on numerals on-the-spot monitoring data.Results Water quality of Weihe River tends gradually to take a turn for the better tendency since 2002 via observation out of two major contaminating index of permanganate and ammonia nitrogen.Primary factors which caused severe contamination of Weihe River rest on critical scarcity of ecological water and massive water filthy discharging amount.Conclusion Four measurements of controlling Weihe River′s main stream water contamination are proposed for reasonably allocating water resources,adjusting regional industrial developmental strategy,reinforcing urban water contaminating source prevention,improving technological level of planting and breeding.