赤水河中段水环境化学特征研究  

Study on Hydro-chemical Characteristic in the Middle of Chishui River

作　　者：王海鹤[1,2] 董泽琴 张帅[1,2] 邹凤钗[1,4] 

机构地区：[1]贵州省环境科学研究设计院,贵州贵阳550002 [2]贵州师范大学地理与环境科学学院,贵州贵阳550001 [3]贵州省水污染控制与资源化技术研究重点实验室,贵州贵阳550002 [4]贵州大学化学与工程学院,贵州贵阳550003

出　　处：《安徽农业科学》2010年第19期10203-10205,10254,共4页Journal of Anhui Agricultural Sciences

基　　金：贵州茅台科技联合基金资助项目(黔科合茅科联字[2008]7004号)

摘　　要：选取赤水河中段作为研究对象,对其水环境化学特征进行分析和研究,并进行水质评价。结果表明,赤水河中段阴离子以HCO3-为主,占阴离子总量的75%,阳离子以Ca2+为主,占阳离子总量的66.7%,水化学类型主要为重碳酸盐钙型Ⅱ类水质,与"七.五"时期相比,水质类型变化不大,且水系河水以HCO3--Ca2+型水的基本组成是稳定的;河水水质属于偏碱性、中等矿化度水,其矿化度随着HCO3-的增加而增加,赤水河中段河水的pH值、矿化度、总硬度等均达到地表水环境质量标准(GB3838-2002)的Ⅰ、Ⅱ类水质或生活饮用水卫生标准(GB5749-2006)的水质要求,可以作为城镇居民的生活饮用水水源地以及周边诸多酒厂生产白酒所用加浆水的水源;赤水河中段干流水中Eh较高,溶解氧丰富,自净能力强,是优质的中等矿化度淡水资源,与河流的水质评价结果相符。Selecting the middle of Chishui River as study objects,its hydro-chemical characteristic was analyzed,and the water quality was evaluated.The results showed that in Chishui River,HCO3-was the dominant anion,accounting for 75% of total anions,and Ca2＋was the dominant cation,accounting for 66.7% of total cations.The hydro-chemical type belonged to that of bicarbonate calcium.Compared with the 7th 5-year period,the type of water quality does not change,the basic composition of river is stable.The water quality belonged to alkalescent and middle salinity.The salinity increased with the HCO3-.On the whole,the mainly ion content in Chishui River met the grade 1 and grade 2 national environmental water quality standards（GB3838-2002）or sanitary standard for drinking water（GB 5749-2006）.For example：pH,salinity,total hardness and so on.It could be used as a source of urban residents living and drinking water,and many winery add water used in liquor production.In the middle reaches of Chishui River trunk stream,Eh was higher,DO was richer,self-purification was strong.It is the high quality of secondary salinity freshwater resources and is accordance with the river water quality assessment results.

关 键 词：赤水河 水化学特征 水质类型 

分 类 号：X832[环境科学与工程—环境工程]