长江干流江苏段及环太湖区域典型城市水生态环境问题解析及控制对策  

Analysis and control countermeasures of water eco-environment problems in typical cities in Jiangsu Province reach of the Yangtze River and the area around Taihu Lake

作　　者：王峥 朱洪涛[1,2] 孙德智[1,2] WANG Zheng;ZHU Hongtao;SUN Dezhi(Beijing Key Laboratory for Source Control Technology of Water Pollution,Beijing Forestry University;Research Center for Source Control&Eco-remediation of Water Pollution,Beijing Forestry University)

机构地区：[1]北京林业大学,水体污染源控制技术北京市重点实验室 [2]北京林业大学,污染水体源控与生态修复技术北京高校工程研究中心

出　　处：《环境工程技术学报》2022年第4期1064-1074,共11页Journal of Environmental Engineering Technology

基　　金：长江生态环境保护修复联合研究项目(第一期)(2019-LHYJ-01)。

摘　　要：长江下游江苏段及环太湖区域作为我国经济高度发达的区域之一,城市发展带来的污染物排放量不断增加但污水收集处理能力有限等原因使得区域内城市水生态环境出现一系列问题。以该区域内10个城市为研究对象,从水环境质量、水资源、水生态和饮用水安全4个方面总结区域城市水生态环境特点,从污染源排放负荷、城市污水收集处理利用、城市面源、工业污染及风险、水生态等方面解析区域城市水生态环境存在的问题。结果表明:区域内城市主要污染源为生活源,但城市面源占比也较大;区域污水收集与处理利用能力有待提升,雨季水质较差;工业污染呈现明显的化工及纺织印染行业污染特点;城市化干扰带来的区域湖泊富营养化、河网水系结构改变等导致水生态功能退化。根据区域城市特征问题及解析结果,提出水资源保护、城市生活源控制、城市面源控制、工业污染及风险防控与水生态修复的对策建议。As one of the economically highly developed regions in China,Jiangsu Province of the lower reaches of the Yangtze River and the area around Taihu Lake have presented a series of problems in the urban water ecoenvironment,due to the increasing pollutant discharges brought by urban development and the limited sewage collection and treatment capacity.The characteristics of the urban water eco-environment of 10 cities in this area were summarized from four aspects:water environmental quality,water resources,aquatic ecology and drinking water safety.The existing problems of the regional urban water eco-environment were analyzed from the aspects of pollution source discharge load,urban sewage collection,treatment and reclamation,urban non-point source,industrial sources and risks,aquatic ecology and so on.The results showed that the major source of urban pollutants in the studied region was the urban domestic source,followed by the non-point source in the urban area.The capacity of sewage collection and treatment needed to be improved and the water quality during the rainy season was poor.Industrial pollution showed obvious characteristics in the chemical and textile printing and dyeing industries.The eutrophication and the change of river network structure caused by urbanization led to the degradation of water ecological functions.And then,according to the above characteristics problems and analytical results of regional cities,the corresponding countermeasures and suggestions for water resources protection,urban domestic source control,urban non-point sources control,industrial pollution and risk prevention and control,and the restoration of water ecology were put forward.

关 键 词：长江干流江苏段 环太湖区域 城市水环境 特征问题解析 控制对策 

分 类 号：X321[环境科学与工程—环境工程]