靖宇县玄武岩区矿泉水特征组分H2SiO3成因实验——以王大山泉为例

doi:10.13278/j.cnki.jjuese.201503204

吉林大学学报(地球科学版) ›› 2015, Vol. 45 ›› Issue (3): 892-898.doi: 10.13278/j.cnki.jjuese.201503204

靖宇县玄武岩区矿泉水特征组分H₂SiO₃成因实验——以王大山泉为例

闫佰忠¹, 肖长来¹, 梁秀娟¹, 马喆¹, 危润初^1,2, 吴世利³

1. 吉林大学地下水资源与环境教育部重点实验室, 长春 130021;
2. 长沙理工大学水利工程学院, 长沙 410000;
3. 长白山自然保护区, 吉林白山 135200

收稿日期:2014-08-04 发布日期:2015-05-26
作者简介:闫佰忠(1988),男,博士研究生,主要从事水资源与水环境、地下水方面的研究,E-mail:jluybz@126.com。
基金资助:
国家"十一五"科技支撑计划项目(2006BAB04A09-02,2007BAB28B04-03);吉林省科技攻关项目(20100452)

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 Runchu^1,2, Wu Shili³

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

摘要/Abstract

摘要：

以靖宇县典型泉岩样为实验材料,结合野外实际情况,考虑pH值和CO₂影响因素设计了矿泉水中H₂SiO₃实验,对实验结果进行了化学动力学分析,并利用matlab建立数学模型分析了矿物反应的机理。结果表明:1)仅考虑pH值的情况下:初始pH值近中性(pH=7.25)时,实验溶液中H₂SiO₃释放量较小,反应难以发生;初始pH值为碱性(pH=8.10)时,实验溶液中H₂SiO₃缓慢增加,平均释放速率为3.08 mg/(kg·d)。2)在考虑pH值和CO₂情况下:初始pH值为碱性条件时,通入CO₂能够较快促进H₂SiO₃产生,平均释放速率可由4.29 mg/(kg·d)升高为12.00 mg/(kg·d);初始pH值为弱酸性(pH=6.64)时,实验溶液中H₂SiO₃增加较快,通入CO₂,溶液中H₂SiO₃释放速率稍微增加。3)实验溶液中H₂SiO₃释放规律符合Stanford一阶反应动力学模型。靖宇县矿泉水中H₂SiO₃主要来自偏硅酸矿物(斜长石、镁橄榄石、辉石)的反应。在中性条件下,玄武岩矿物很难反应;在碱性条件时,主要是玄武岩矿物的水解,反应缓慢;在弱酸性条件下,主要是玄武岩矿物与H⁺和CO₂的反应,反应强度较大。

关键词: 矿泉水, H₂SiO₃, 化学动力学, 矿物反应, 吉林省靖宇县

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

中图分类号:

P641

闫佰忠, 肖长来, 梁秀娟, 马喆, 危润初, 吴世利. 靖宇县玄武岩区矿泉水特征组分H₂SiO₃成因实验——以王大山泉为例[J]. 吉林大学学报(地球科学版), 2015, 45(3): 892-898.

Yan Baizhong, Xiao Changlai, Liang Xiujuan, Ma Zhe, Wei Runchu, Wu Shili. Experiment on the Characteristic Component (H₂SiO₃) of the Mineral Water in the Basalt in Jingyu County: A Case Study of Wangdashan Spring[J]. Journal of Jilin University(Earth Science Edition), 2015, 45(3): 892-898.

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靖宇县玄武岩区矿泉水特征组分H₂SiO₃成因实验——以王大山泉为例

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

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