武汉市某湖泊水环境质量评价与污染分析  

Water Environmental Quality Evaluation and Pollution Analysis of a Lake in Wuhan City

作　　者：李思琪 黄孟斌 徐志文 魏伟 陈琴 王利林 LI Siqi;HUANG Mengbin;XU Zhiwen;WEI Wei;CHEN Qin;WANG Lilin(Wuhan Hanyang Municipal Construction Group Co.,Ltd.,Wuhan 430050,China;Wuhan Zhiyuan Construction Group Co.,Ltd.,Wuhan 430050,China)

机构地区：[1]武汉市汉阳市政建设集团有限公司,湖北武汉430050 [2]武汉致远建设集团有限公司,湖北武汉430050

出　　处：《净水技术》2023年第S01期219-226,共8页Water Purification Technology

摘　　要：为研究城市湖泊水环境质量状况,以武汉城区某湖泊为例,采用综合营养状态指数法、综合污染指数法对水体水质状态和底泥污染等情况进行评价,结合点源、面源、内源污染负荷,对水环境的污染现状和污染程度开展分析,全面准确地反映水域水环境状况。结果表明,该湖泊整体水质综合营养状态指数在71.48~87.35,处于重度富营养状态,主要控制因子为叶绿素a、TN、TP;底泥综合污染指数评价显示90%以上底泥处于较严重污染状态,平均污染指数达3.370,其中TP对水体污染贡献最显著;湖泊水体主要污染源为雨水径流产生的面源污染和底泥释放的内源污染,COD_(Mn)为主要面源污染控制因子。In order to study the water environment quality of urban lakes,taking a lake in Wuhan as an example,the comprehensive nutrient state index method and comprehensive pollution index method were used to evaluate the water quality state and sediment pollution.Combining the pollution load of point source,non-point source and internal source,the pollution status and pollution degree of water environment were analyzed to reflect the water environment situation comprehensively and accurately.Results showed that the overall water quality comprehensive nutrient status index of the lake ranged from 71.48 to 87.35,which was in a state of severe eutrophication,and the main controlling factors were Chla,TN and TP;The comprehensive sediment pollution index evaluation showed that more than 90%of the sediment was in a serious state of pollution,with the average pollution index reaching 3.370,among which TP made the most significant contribution to water pollution;The main pollution loads of lake water were non-point source pollution generated by rainwater runoff and internal pollution released by sediment,among which COD_(Mn) was the main non-point source pollution control factor.

关 键 词：水环境质量 富营养化 污染负荷分析 控制因子 底泥污染评价 

分 类 号：X824[环境科学与工程—环境工程]