| 人工回灌条件下的水岩作用室内实验研究 |
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| 作者姓名： | 石旭飞 王寒梅 焦珣 张文静 |
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| 作者单位： | 1. 吉林大学环境与资源学院,长春,130026
2. 上海市地质调查研究院,上海200072／上海地面沉降控制工程技术研究中心,上海200072／国土资源部地面沉降监测与防治重点实验室,上海200072 |
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| 基金项目： | 国家自然科学基金项目，上海市科学技术委员会科研项目 |
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| 摘 要： | 人工回灌过程中所发生的水岩作用是影响含水层地下水环境质量的重要因素。本次采用室内实验技术对人工回灌过程中的水文地球化学作用和各主要离子的来源进行了分析。结果表明：人工回灌过程中地下水中的Na＋不仅受混合作用的影响,还伴随有相应的阳离子交换反应和含Na矿物的溶解反应等,而且回灌过程对原始地下水中的Na＋、Cl-有稀释作用;K＋主要受到钾长石矿物溶解的影响;人工回灌过程中存在石膏、方解石等矿物组分溶解,并且介质中的含锰矿物和含铁矿物发生了溶解反应。
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| 关 键 词： | 人工回灌 地下水环境质量 水文地球化学作用 室内实验 |
Experimental Study of Water-Rock Interaction During Artificial Recharge |
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| Authors: | SHI Xu-Fei WANG Han-Mei JIAO Xun ZHANG Wen-Jing |
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| Institution: | 1.College of Environment and Resources/Institute of Water Resources and Environment,Jilin University,Changchun 130026,China; 2.Shanghai Institute of Geological Survey,Shanghai 200072,China; 3.Shanghai Land Subsidence Control Engineering Research Center,Shanghai 200072,China; 4.Key Laboratory of Land Subsidence Monitoring and Prevention,Ministry of Land and Resources of China,Shanghai 200072,China) |
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| Abstract: | Hydrogeochemical changes during artificial recharge are an important factor influencing the quality of groundwater in a recharged aquifer.A laboratory experiment was used to study hydrogeochemical changes,and the origins of major ions,during artificial recharge.The results of the research showed that Na＋ in the groundwater was affected by mixing,cation exchange reactions,and dissolution of sodium-bearing minerals;Na＋ and Cl– were diluted during the artificial recharge;K＋ was affected by the dissolution of potash feldspar.The dissolution of gypsum,calcite,iron-bearing,and manganese-bearing minerals also occurred during the artificial recharge. |
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| Keywords: | artificial recharge groundwater environmental quality hydrogeochemistry action indoor experiment |
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