新疆奎屯河流域地下水砷富集因素  

Groundwater arsenic enrichment factors of Kuitun River basin, Xinjiang

作　　者：袁翰卿 李巧[1,2] 陶洪飞 马合木江·艾合买提[1] 杨文新[1] 宿彦鹏 YUAN Hanqing;LI Qiao;TAO Hongfei;MAhemujiang·Aihemaiti;YANG Wenxin;SU Yanpeng(College of Water Conservancy and Civil Engineering,Xin jiang Agricultural University,Urumqi,830052,China;Xinjiang Hydrology and Water Resources Engineering Technology Research Center,Urumqi,830052,China)

机构地区：[1]新疆农业大学水利与土木工程学院,乌鲁木齐830052 [2]新疆水文水资源工程技术研究中心,乌鲁木齐830052

出　　处：《环境化学》2020年第2期524-530,共7页Environmental Chemistry

基　　金：国家自然科学基金(41762018);新疆维吾尔自治区自然科学基金青年基金(2016D01B024)资助。

摘　　要：通过对奎屯河流域49组地下水样中常量元素(K、Ca、Na、Mg、S、Cl)、微量元素分析(As、Fe、Mn、F、P),研究了奎屯河流域高砷地下水的水化学特性,探讨了地下水中砷富集的影响因素.结果表明,奎屯河流域地下水pH平均值为8.16,地下水处于还原环境,且研究区沉积层深厚,地下径流更替缓慢,蒸发量大,年降雨量少.较高pH值、无机物、还原环境、干旱-半干旱的气候条件、封闭的地球化学环境及交替缓慢的水文地质条件为奎屯河流域地下水中砷的富集提供了有利条件.Based on the analysis of major elements and trace elements in 49 groups of groundwater samples in Kuitun River basin,the hydrochemical characteristics of high-arsenic groundwater were studied,and the groundwater arsenic enrichment factors were discussed.The results showed that the average pH of groundwater was 8.16,and the groundwater was in a reducing environment.High pH value,inorganic matter,reducing environment,arid and semi-arid climatic conditions,closed geochemical environment and slowly alternating hydrogeological conditions provided favorable conditions for the enrichment of arsenic in the groundwater of the Kuitun River basin.

关 键 词：高砷地下水 奎屯河流域 还原环境 富集因素 

分 类 号：P641.3[天文地球—地质矿产勘探]