|本期目录/Table of Contents|

[1]孙亚乔,钱 会,段 磊.pH值对混合溶液中矿物溶解/沉淀的影响[J].地球科学与环境学报,2009,31(04):413-417.
　SUN Ya-qiao,QIAN Hui,DUAN Lei.Impact of pH on Dissolution and Precipitation of Mineral in Mixing Solution[J].Journal of Earth Sciences and Environment,2009,31(04):413-417.
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pH值对混合溶液中矿物溶解/沉淀的影响(PDF)
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第31卷
期数:
2009年第04期
页码:
413-417
栏目:
水资源与地质工程
出版日期:
2009-12-15

文章信息/Info

Title:
Impact of pH on Dissolution and Precipitation of Mineral in Mixing Solution
文章编号:
1672-6561(2009)04-0413-05
作者:
孙亚乔; 钱 会; 段 磊
(长安大学 环境科学与工程学院,陕西 西安 710054)
Author(s):
SUN Ya-qiao;  QIAN Hui;  DUAN Lei
(School of Environmental Sciences and Engineering, Chang'an University, Xi'an 710054, Shaanxi, China)
关键词:
混合作用; 水文地球化学模拟; 饱和指数; 混合比例
Keywords:
mixing;  hydrochemical simulation;  saturation;  mixing ratio
分类号:
P641.3
DOI:
-
文献标志码:
A
摘要:
以粉煤灰浸出液与自来水混合为例,结合水文地球化学模拟,分析了在混合作用下,pH值对单相混合溶液中矿物溶解/沉淀作用的影响。结果表明,由于混合作用,溶液pH值发生改变引起CO2-3活度变化,从而影响方解石和白云石的饱和指数,随着混合比例从0.1到0.9的增加,实验和模拟单相混合溶液中白云石和方解石的饱和指数呈现不同规律的下降;在混合溶液pH值的影响下,玉髓饱和指数随混合比例的增大,呈现先上升后下降的变化趋势。
Abstract:
Taking the flyash leach mixing with tap water as a research object, the effect of pH on dissolution and precipitation of mineral in mixing solution is studied by hydrochemical simulation. The result shows that the pH causes the change of activity of CO2-3 and has an effect on the saturation of calcite and dolomite for single-phase mixing. In measured and simulated mixing solution, the saturation of Calcite and Dolomite is decreasing differently with the mixing ratio from 0.1 to 0.9. Under the influence of pH, the saturation of chalcedony presents the tendency of increase at the beginning and then decrease with the increase of mixing ratio.

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备注/Memo

备注/Memo:
收稿日期:2009-02-27
基金项目: 国家自然科学基金项目(40372114; 40772160)
作者简介: 孙亚乔(1977-),女,浙江上虞人,讲师,工学博士,从事水文地球化学和生态环境研究。E-mail:sunyaqiao@126.com

更新日期/Last Update: 2009-12-20