临界盐浓度递减率对多孔介质微粒释放的影响

曹霞; 李国霞; 徐天华

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临界盐浓度递减率对多孔介质微粒释放的影响

更新时间：2026-09-14

- 临界盐浓度递减率对多孔介质微粒释放的影响
- 临界盐浓度递减率对多孔介质微粒释放的影响
- Issue 1, (2010)
- 作者机构：
  
  1. 中北大学化工与环境学院
  2. 太原市环境科学研究设计院
  3. 山西省环境工程设计院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
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曹霞, 李国霞, 徐天华. 临界盐浓度递减率对多孔介质微粒释放的影响[J]. 2010, (1).
DOI：

曹霞, 李国霞, 徐天华. 临界盐浓度递减率对多孔介质微粒释放的影响[J]. 2010, (1). DOI：

摘要

通过批量试验研究了临界盐浓度递减率对多孔介质微粒释放过程的影响

并通过胶体化学理论对其进行了微观机理探讨.研究结果表明:中性条件下

NaCl溶液临界盐浓度递减速率在0.012 mol/L左右

只有驱替溶液(低于临界盐浓度值)与被驱替溶液的浓度差高于该值时

微粒释放才会发生;临界盐浓度递减速率是一个区间值

而非单一值.

Abstract

The critical ratio of salinity decrease affecting the particle release process in porous media was studied with batch experiments

and the microcosmic mechanism about it was discussed by colloidal chemical theory.The results indicate that

under the neutral condition

the critical ratio of salinity decrease of NaCl solution is about 0.012 mol/L.Only when the concentration difference between the displacing solution and the displaced one is higher than this value

can the particle releasing be caused.The critical ratio of salinity decrease has a range

not a single value.

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