城市内河水质污染成因浅析

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	英文篇名：Analysis on the Causes of Water Pollution in Urban Inland Rivers 作者：孙步旭 ; 张毅 英文作者：SuBuxu;Suqian Environment Monitoring Center; 关键词：城市内河 ; 水动力 英文关键词：Urban inland rivers;;Hydrodynamic 中文刊名：黑龙江环境通报 英文刊名：Heilongjiang Environmental Journal 机构：江苏省宿迁环境监测中心; 出版日期：2019-06-15 出版单位：黑龙江环境通报 年：2019 期：02 语种：中文; 页：68-70 页数：3 CN：23-1398/X ISSN：1674-263X 分类号：X522

摘要

选取某市一条长约40km城市内河,运用历年水质监测数据,考虑水质在时空上的变化趋势,按上下游空间比较分析和因子时间分析,通过数据分析可以看出,该内河上游源头处因农业面源和乡镇生活污水进入,水质较差,通过河流自身净化能力,进入城市主城区后,水质稳定达到Ⅲ类,而城市某断面出现水质化学需氧量超标现象,结合河流现场感官和水动力理论,该断面水质不能稳定达标的主要原因为水动力不足和可能存在生活污水的进入。通过文章阐述分析,城市内河污染主要来源既有农业面源、生活污水等加强水污染防治可以解决的问题,也有河流本身水动力不足等客观原因。
        We selected a city inland river with a length of about 40 km,analysed the monitoring data of water quality over the years considering the changing trend of water quality in time and space and according to the spatial comparison analysis and factor time analysis of upstream and downstream. The result showed that the water quality of the upstream source of the inland river was poor because of agricultural non-point sources and domestic sewage from villages and towns. After entering the main urban area,through the purification capacity of the river itself,the water quality was stable to reach Class III Standard. COD of a section of river exceeded the standard. Combining with the sensory and hydrodynamic theory of the river field,the main reasons for the water quality of the section not reaching the standard were the insufficient hydrodynamic power and the possible entry of domestic sewage. Through the elaboration and analysis of the article,the main sources of urban inland river pollution are not only the problems that can be solved by strengthening the prevention and control of water pollution,such as agricultural non-point sources and domestic sewage,but also the objective reasons of insufficient hydrodynamic force of the river itself.

引文

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