The Hydrogeochemical Modeling for Total Hardness in Aquifer of Urban Area
The total hardness in aquifer often increased rapidly in urban area, and it may caused by the hydrogeochemistry. However it is not clear where the hydrogeochemistry happened in aquifer or in vadose zone. In this paper, mineral dissolution and cation exchange relevant to total hardness were simulated by the hydrogeochemical transport model in order to research the influences of the mineral dissolution and cation exchange in aquifer on chemical composition in groundwater system. The results showed that the contribution of calcite and dolomite dissolution to HCO3 -、Ca2+and Mg2+of groundwater is less than 1 mg/L in a year, which revealed that the rapid increase of HCO3 -, Ca2+and Mg2+of groundwater may derive from the mineral dissolution of vadose zone.
CHENG Donghui LIU Mingzhu CHEN Honghan HE Jiangtao HE Guoping LIN Jian
College of Environmental Sciences and Engineering Chang’an University Xi’an, PRC School of Water Resources and Environment China University of Geosciences Beijing, PRC Beijing Institute of Water Beijing Municipal Bureau of Water Authority Beijing, PRC Beijing Institute of Geological Engineering Beijing Municipal Bureau of Geology and Minerals Prospec
国际会议
成都
英文
1-4
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）