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首页> 外文会议>2011 International Symposium on Water Resource and Environmental Protection >Analysis of water quality variation of rainfall in Xi'an
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Analysis of water quality variation of rainfall in Xi'an

机译：西安市降雨水质变化分析

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Through the analysis of different underlying surfaces during rainfall in Xi''an stormwater runoff water quality. This paper studies the sources of pollutants in stormwater and water quality variations. The results showed that: The major pollutants in the rainfall are SS, COD, NH3-N, TP. SS, COD and TP are mainly from rainfall runoff process by the underlying surface erosion, NH3-N is mainly from the leach of atmosphere caused by rainfall. Concentration of each pollutant in runoff exceeds V water requirements of GB3838-2002 in “Surface Water Environmental Quality Standard”. The concentration of pollutants shows overall downward trend in rainfall process, tending to be stable eventually. SS, and COD, TP, NH3-N has a strong correlation. All kinds of pollutants are mostly attached to the particles. To remove the SS is the key to control of the stormwater runoff pollution and stormwater treatment. The values of BOD/COD for rainwater were less than 0.3. Biochemical process performance is poor and it''s fitted to uses physicochemical treatment.
机译：通过对西安市暴雨径流水质的降雨过程中不同下伏面的分析。本文研究了雨水中污染物的来源和水质变化。结果表明：降雨中主要污染物为SS，COD，NH 3 -N，TP。 SS，COD和TP主要来自下垫面侵蚀引起的降雨径流过程，而NH3-N主要来自降雨引起的大气浸出。径流中每种污染物的浓度均超过《地表水环境质量标准》 GB3838-2002中V水的要求。污染物浓度在降雨过程中总体呈下降趋势，最终趋于稳定。 SS与COD，TP，NH 3 -N具有很强的相关性。各种污染物大多附着在颗粒上。去除SS是控制雨水径流污染和雨水处理的关键。雨水的BOD / COD值小于0.3。生化过程性能较差，因此适合使用物理化学处理。

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