本文選題：巖溶地下水　切入點：水化學　出處：《環(huán)境科學》2016年12期 　論文類型：期刊論文

【摘要】：巖溶地下水是棗莊市工農業(yè)生產以及居民飲用水的重要供水水源.近年來,隨著工業(yè)化及城市化的發(fā)展,硫酸鹽污染日益突出.于2014年8月共采集棗莊市南部不同深度地下水和地表水樣品36組,在分析其水化學及δD、δ~(18)O-H_2O、δ~(34)SSO_4~(2-)同位素組成的基礎上,通過分析區(qū)域地下水水文地球化學演化過程及人為輸入的影響,識別了地下水硫酸鹽污染的范圍和途徑.結果表明,區(qū)內地下水水化學類型主要為HCO_3·SO_4-Ca型,水化學組分主要來源于碳酸鹽巖和硫酸鹽礦物的溶解、黃鐵礦氧化以及人為活動的影響;地下水主要來源于大氣降水補給,地表水與不同深度地下水水力聯系密切;地下水中δ~(34)SSO_4~(2-)含量的變化范圍為0.2‰~9.3‰,與SO_4~(2-)含量的關系分析顯示,硫酸鹽具有多種來源,主要包括石膏溶解、黃鐵礦氧化、化肥淋濾與工業(yè)廢水下滲污染.除原生地質成因影響外,工礦企業(yè)的廢水下滲是造成當地地下水硫酸鹽含量升高的主要原因.
[Abstract]:Karst groundwater is an important water source for industrial and agricultural production and drinking water for residents in Zaozhuang. In recent years, with the development of industrialization and urbanization, Sulfate pollution is becoming more and more serious. In August 2014, 36 groups of groundwater and surface water samples of different depths in southern Zaozhuang City were collected. Based on the analysis of their hydrochemistry and isotopic compositions of 未 D, 未 ~ (18) O -H _ 2O, 未 ~ (34) SSO-S _ (4) O ~ (2), By analyzing the evolution process of regional groundwater hydrogeochemistry and the influence of human input, the range and approach of groundwater sulfate pollution are identified. The results show that the hydrochemical types of groundwater in this area are mainly HCO_3 路SO_4-Ca type. The hydrochemical components are mainly derived from the dissolution of carbonate rocks and sulfate minerals, the oxidation of pyrite and the influence of human activities, and the groundwater is mainly derived from the recharge of atmospheric precipitation, and surface water is closely related to groundwater at different depths. The analysis of the relationship between the content of 未 ~ (3 +) ~ (4) so _ (4) in groundwater is from 0.2 鈥，

本文編號：1576399