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The groundwater chemical characteristics of a chemical industry park in Shandong Province were studied by collecting groundwater samples and using mathematical statistics, Piper three-line graph and Gibbs chart. The results show that HCO3·Cl-Ca, Cl·SO4-Ca and SO4·-Cl-Ca are the main hydrochemical types of carbonate fissure karst water, and HCO3·Cl-Ca and Cl· HCO3-Ca are the main hydrochemical types of clastic pore fissure water. The anions are mainly Cl−, HCO3−, SO42−, and the cations are mainly Ca2+. It is speculated that the ion change is mainly from the dissolution of carbonate sediments and gypsum sediments in the south to the dissolution of gypsum or sulfate sedimentary rocks in the north. Along the northeast to southwest direction, the hydrochemical type changes from Cl-HCO3-Ca → Cl·SO4-Ca type. The shallow groundwater in the park area is affected by water-rock interaction. The deep groundwater is affected by the water-rock interaction, and evaporation and concentration also contribute to it, but the water-rock interaction is dominant.

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Characteristics and Influencing Factors of Groundwater Chemistry in a Chemical Industry Park

  • 会议论文

  • 发表日期：

    2025年

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  • Yuwen Dong,
  • Haiming Li,
  • Yanwei Wang

摘要

The groundwater chemical characteristics of a chemical industry park in Shandong Province were studied by collecting groundwater samples and using mathematical statistics, Piper three-line graph and Gibbs chart. The results show that HCO3·Cl-Ca, Cl·SO4-Ca and SO4·-Cl-Ca are the main hydrochemical types of carbonate fissure karst water, and HCO3·Cl-Ca and Cl· HCO3-Ca are the main hydrochemical types of clastic pore fissure water. The anions are mainly Cl−, HCO3−, SO42−, and the cations are mainly Ca2+. It is speculated that the ion change is mainly from the dissolution of carbonate sediments and gypsum sediments in the south to the dissolution of gypsum or sulfate sedimentary rocks in the north. Along the northeast to southwest direction, the hydrochemical type changes from Cl-HCO3-Ca → Cl·SO4-Ca type. The shallow groundwater in the park area is affected by water-rock interaction. The deep groundwater is affected by the water-rock interaction, and evaporation and concentration also contribute to it, but the water-rock interaction is dominant.