基于GIS和熵权法的水厂原水水质评价  

Raw water evaluation of water plants based on GIS and entropy weight method

作　　者：刘俊萍[1] 邵佳伟[1] 董飞龙[1] 马晓雁[1] 

机构地区：[1]浙江工业大学建筑工程学院,浙江杭州310014

出　　处：《浙江工业大学学报》2014年第5期539-543,共5页Journal of Zhejiang University of Technology

基　　金：国家自然科学基金资助项目(51208468);浙江省自然科学基金资助项目(LQ12E08013);浙江省级重点科技创新团队项目(2012R10035-11)

摘　　要：为对杭州市水厂原水的水质进行评价,以九溪水厂、祥符水厂、南星水厂、清泰水厂的原水为研究对象,通过水质分析获得了10余项水质指标数据,以溶解氧、化学需氧量、总氮、氨氮4个指标为例,通过地理信息系统(GIS),运用单因子水质评价法,对4座水厂的原水进行了分类,并运用熵权法得出各指标权重,结合模糊隶属度,分别对7月和12月的水厂原水进行了多因子水质综合评价.结果表明:不同水厂原水在同一水质指标下存在明显差异;南星水厂和祥符水厂原水综合水质较好;各个水质指标在7月和12月的结果也存在差异.整体上12月的原水水质好于7月.To evaluate raw water quality of water plants in Hangzhou,Jiuxi,Xiangfu,Nanxing,Qingtai are served as research objects.With water quality analysis getting data of more than 10 indexes.DO,COD,TN,NH3-N serving as example,single-factor evaluation was applied to classify raw water with GIS.Comprehensive multi-factor evaluations of July and December were accomplished with entropy weight method getting weight,using fuzzy membership.The result indicates raw water quality of each water plant at same index varies from one to another.Nanxing and Xiangfu are more qualified.Values of indexes of July are different from those of December.On the whole,raw water quality in December is superior to that in July.

关 键 词：水厂 原水 地理信息系统 水质评价 熵权法 

分 类 号：TV213.4[水利工程—水文学及水资源]