本文主要研究内容
作者陈星（2019）在《淮北临涣矿区地表水硫酸盐分布特征及来源解析》一文中研究指出：本论文主要以淮北临涣采煤沉陷区作为主要研究对象,系统性的采集了地表水(河水,沉陷区积水)和部分矿井排水共21个水样,分析测试其常规水化学指标,应用硫酸盐硫、氧同位素示踪矿区内河流及沉陷区积水中可溶性硫酸盐的来源。结果表明:(1)地表水TDS含量较高,阳离子主要为Na+和Ca2+,阴离子主要为HCO3-与SO42-,浍河河水水化学类型主要为Na+-Ca2+-HCO3-型,沉陷积水主要为Na+-Cl--SO42-型。Gibbs图分析结果表明河水离子组成主要受岩石风化的控制,而沉陷区积水主要受蒸发作用影响。矿区河水和沉陷区积水S042-含量较高,平均值分别为412.9 mg/L和506.1 mg/L。(2)地表水中SO42-含量随时间出现一定的变化幅度,在丰、平、枯水期明显体现出季节性变化特点:枯水期>平水期>丰水期;S042-含量空间分布特征表现为:沉陷区积水>干流浍河>支流包河。(3)浍河河水硫酸盐中δ34SSo4和δ18Oso4值的范围为+8.7‰～+22.5‰和+7.59‰～+12.8‰,平均值分别为+17.4‰和+10.1‰。沉陷区积水中硫酸盐的同位素组成较稳定,δ34Sso4和δ18Os04取值范围分别为+20.1‰-+22.19‰和+10.0‰～+13.3‰,平均值分别为+20.9‰和+11.3‰。沿浍河水流方向,SO42-含量及δ34SS04的值呈现出先降低后升高的趋势。流经矿区之前,浍河干流中硫酸盐主要来源于上游地区地层中蒸发盐岩的溶解和土壤中硫酸盐的溶解。支流包河河水中硫酸盐主要来源于大气降水与蒸发盐溶解的共同作用以及一定程度的人为输入(农业生产,污水排放)。两条河水混合排入沉陷区,使沉陷区硫酸盐污染严重,水质受到影响。河水、沉陷区积水、矿井排水的δ34SS04与SO42-呈现较好的相关性表明沉陷区积水中SO42-除受浍河河水影响外,当地采矿废水的排入也是其硫酸盐来源,体现出煤矿开采活动对水环境的影响。(4)根据同位素δ34Sso4和δ18Oso4值分析表明,研究区河水中SO42-主要来源为蒸发岩溶解,沉陷区积水中SO42-主要来源河水补给、矿井排水及一定程度矸石淋滤。矿井排水的TDS和SO42-含量较高,其硫酸盐的硫氧同位素组成明显富集重同位素,硫酸盐来源机制主要为蒸发盐地层中溶解的硫酸盐,黄铁矿氧化仅作为其次要来源。三元混合模型的计算结果表明,河水端源对沉陷区积水中硫酸盐贡献占比范围在34.5%～65.3%,矿井排水端源对沉陷区积水中硫酸盐贡献占比范围在8.2%～32.6%,矸石淋滤液端源贡献占比范围在12.2%～56.8%,体现了煤矿开采活动对沉陷区积水中硫酸盐浓度的重要影响。
Abstract
ben lun wen zhu yao yi huai bei lin huan cai mei chen xian ou zuo wei zhu yao yan jiu dui xiang ,ji tong xing de cai ji le de biao shui (he shui ,chen xian ou ji shui )he bu fen kuang jing pai shui gong 21ge shui yang ,fen xi ce shi ji chang gui shui hua xue zhi biao ,ying yong liu suan yan liu 、yang tong wei su shi zong kuang ou nei he liu ji chen xian ou ji shui zhong ke rong xing liu suan yan de lai yuan 。jie guo biao ming :(1)de biao shui TDShan liang jiao gao ,yang li zi zhu yao wei Na+he Ca2+,yin li zi zhu yao wei HCO3-yu SO42-,hui he he shui shui hua xue lei xing zhu yao wei Na+-Ca2+-HCO3-xing ,chen xian ji shui zhu yao wei Na+-Cl--SO42-xing 。Gibbstu fen xi jie guo biao ming he shui li zi zu cheng zhu yao shou yan dan feng hua de kong zhi ,er chen xian ou ji shui zhu yao shou zheng fa zuo yong ying xiang 。kuang ou he shui he chen xian ou ji shui S042-han liang jiao gao ,ping jun zhi fen bie wei 412.9 mg/Lhe 506.1 mg/L。(2)de biao shui zhong SO42-han liang sui shi jian chu xian yi ding de bian hua fu du ,zai feng 、ping 、ku shui ji ming xian ti xian chu ji jie xing bian hua te dian :ku shui ji >ping shui ji >feng shui ji ;S042-han liang kong jian fen bu te zheng biao xian wei :chen xian ou ji shui >gan liu hui he >zhi liu bao he 。(3)hui he he shui liu suan yan zhong δ34SSo4he δ18Oso4zhi de fan wei wei +8.7‰～+22.5‰he +7.59‰～+12.8‰,ping jun zhi fen bie wei +17.4‰he +10.1‰。chen xian ou ji shui zhong liu suan yan de tong wei su zu cheng jiao wen ding ,δ34Sso4he δ18Os04qu zhi fan wei fen bie wei +20.1‰-+22.19‰he +10.0‰～+13.3‰,ping jun zhi fen bie wei +20.9‰he +11.3‰。yan hui he shui liu fang xiang ,SO42-han liang ji δ34SS04de zhi cheng xian chu xian jiang di hou sheng gao de qu shi 。liu jing kuang ou zhi qian ,hui he gan liu zhong liu suan yan zhu yao lai yuan yu shang you de ou de ceng zhong zheng fa yan yan de rong jie he tu rang zhong liu suan yan de rong jie 。zhi liu bao he he shui zhong liu suan yan zhu yao lai yuan yu da qi jiang shui yu zheng fa yan rong jie de gong tong zuo yong yi ji yi ding cheng du de ren wei shu ru (nong ye sheng chan ,wu shui pai fang )。liang tiao he shui hun ge pai ru chen xian ou ,shi chen xian ou liu suan yan wu ran yan chong ,shui zhi shou dao ying xiang 。he shui 、chen xian ou ji shui 、kuang jing pai shui de δ34SS04yu SO42-cheng xian jiao hao de xiang guan xing biao ming chen xian ou ji shui zhong SO42-chu shou hui he he shui ying xiang wai ,dang de cai kuang fei shui de pai ru ye shi ji liu suan yan lai yuan ,ti xian chu mei kuang kai cai huo dong dui shui huan jing de ying xiang 。(4)gen ju tong wei su δ34Sso4he δ18Oso4zhi fen xi biao ming ,yan jiu ou he shui zhong SO42-zhu yao lai yuan wei zheng fa yan rong jie ,chen xian ou ji shui zhong SO42-zhu yao lai yuan he shui bu gei 、kuang jing pai shui ji yi ding cheng du gan dan lin lv 。kuang jing pai shui de TDShe SO42-han liang jiao gao ,ji liu suan yan de liu yang tong wei su zu cheng ming xian fu ji chong tong wei su ,liu suan yan lai yuan ji zhi zhu yao wei zheng fa yan de ceng zhong rong jie de liu suan yan ,huang tie kuang yang hua jin zuo wei ji ci yao lai yuan 。san yuan hun ge mo xing de ji suan jie guo biao ming ,he shui duan yuan dui chen xian ou ji shui zhong liu suan yan gong suo zhan bi fan wei zai 34.5%～65.3%,kuang jing pai shui duan yuan dui chen xian ou ji shui zhong liu suan yan gong suo zhan bi fan wei zai 8.2%～32.6%,gan dan lin lv ye duan yuan gong suo zhan bi fan wei zai 12.2%～56.8%,ti xian le mei kuang kai cai huo dong dui chen xian ou ji shui zhong liu suan yan nong du de chong yao ying xiang 。
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论文详细介绍
论文作者分别是来自安徽大学的陈星，发表于刊物安徽大学2019-07-03论文，是一篇关于河水论文,沉陷区积水论文,硫酸盐论文,氢氧同位素论文,硫氧同位素论文,端源论文,混合模型论文,安徽大学2019-07-03论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自安徽大学2019-07-03论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：河水论文; 沉陷区积水论文; 硫酸盐论文; 氢氧同位素论文; 硫氧同位素论文; 端源论文; 混合模型论文; 安徽大学2019-07-03论文;