摘要
以铜山口铜矿为例,利用氢氧同位素、硫同位素与其他水化学特征离子的相关关系,分析水环境中硫酸盐来源及迁移特征。铜山口矿区水质总体表现为高硫酸盐、高TDS、低重金属和弱碱性—碱性特征。氢氧同位素及水化学特征表明矿区内地下水与地表水联系密切。硫同位素及水化学特征表明,矿区水环境中硫酸盐主要来源于矿区含硫矿物氧化、淋滤作用以及尾矿库废水的渗漏。与底泥中固态硫化物相比,水溶液中离子态的硫酸盐更易于迁移,难以与其他阳离子结合发生沉淀;在地表水汇流过程中,下游逐渐富集硫酸盐,导致水质进一步恶化。
Taking Tongshankou copper mine as an example,the source and migration characteristics of sulfate in water environment are analyzed by using the correlation between hydrogen-oxygen isotope and sulfur isotope and other hydrochemical characteristic ions.The water quality of Tongshankou mining area is generally characterized by high sulfate,high TDS,low heavy metals and weak alkaline-alkaline characteristics.Hydrogen and oxygen isotope and hydrochemical characteristics show that groundwater in the mining area is closely related to surface water.Sulfur isotope and hydrochemical characteristics show that the sulfate in the water environment of the mining area is mainly derived from the oxidation and leaching of sulfur-bearing minerals in the mining area and the leakage of tailings pond wastewater.Compared with solid sulfide in sediment,ionic sulfate in aqueous solution is easier to migrate,and it is difficult to combine with other cations to precipitate.In the process of surface water confluence,sulfate is gradually enriched downstream,resulting in further deterioration of water quality.
作者
王宇
李圣军
马超
万凯
刘帅
余波
Wang Yu;Li Shengjun;Ma Chao;Wan Kai;Liu Shuai;Yu Bo(Hubei Key Laboratory of Resources and Eco-environmental Geology,Wuhan,Hubei 430034;Hubei Geological Environment Station,Wuhan,Hubei 430034;School of Environmental Studies,China University of Geosciences,Wuhan,Hubei 430074;Second Geological Brigade of Hubei Geological Bureau,Enshi,Hubei 445000)
出处
《资源环境与工程》
2022年第3期265-273,共9页
Resources Environment & Engineering
关键词
硫酸盐
氢氧同位素
硫同位素
水化学特征
矿山环境
迁移规律
sulfate
hydrogen and oxygen isotopes
sulfur isotope
hydrochemical characteristics
mine environment
migration law
作者简介
第一作者:王宇(1993-),男,硕士,水利工程专业,从事水工环地质调查工作,E-mail:wangyucug@qq.com。
