Journal of Jilin University(Earth Science Edition) ›› 2015, Vol. 45 ›› Issue (3): 892-898.doi: 10.13278/j.cnki.jjuese.201503204

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Experiment on the Characteristic Component (H2SiO3) of the Mineral Water in the Basalt in Jingyu County: A Case Study of Wangdashan Spring

Yan Baizhong1, Xiao Changlai1, Liang Xiujuan1, Ma Zhe1, Wei Runchu1,2, Wu Shili3   

  1. 1. Key Laboratory of Groundwater Resources and Environment of Ministry of Education, Jilin University, Changchun 130021, China;
    2. Shool of Hydraulic Engineering, Changsha University of Science&Technology, Changsha 410000, China;
    3. Changbai Mountain Natural Nature Reserve, Baishan 135200, Jilin, China
  • Received:2014-08-04 Published:2015-05-26

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Abstract:

The experiments under different conditions were designed by taking the typical spring samples in Jingyu in combination with the practical situation of the field, with considering the influencing factors of pH value and CO2. The experimental results were studied by chemical kinetic analysis and mineral reaction mechanism by matlab. The results showed that it is difficult to release H2SiO3 under the initial neutral pH value(pH=7.25); H2SiO3 increases slowly with the initial alkaline pH value (pH=8.10); and the release rate is 3.08 mg/(kg·d). CO2 could promote the release of H2SiO3, and the average releasing rate increased from 4.29 mg/(kg·d) to 12.00 mg/(kg·d) in initial alkaline pH value, although it is not significant in initial faint acid pH value. The release of H2SiO3 could be described by the Stanford first-order kinetic equation. H2SiO3 in mineral water of Jingyu is mainly produced by Metasilicate mineral magnesium (plagioclase, olivine, and pyroxene) reaction. It is hard to generate H2SiO3 in Neutral pH value. Under the condition of alkaline pH, H2SiO3 is produced by the hydrolysis of basalt mineral; and under the condition of faint acid, H2SiO3 is produced by the reaction of basalt mineral and H+, CO2.

Key words: mineral water, H2SiO3, chemical kinetics, mineral reaction, Jingyu County, Jilin Province

CLC Number: 

  • P641

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