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中国科学院大学学报 ›› 2013, Vol. 30 ›› Issue (2): 213-219.DOI: 10.7523/j.issn.1002-1175.2013.02.011

• 环境科学与地理学 • 上一篇    下一篇

煤层气产出水中高浓度Cl-和HCO3-对活性氧化铝吸附F-的动力学影响

黄丽娟, 胡正义, 卢佳, 鲍鹏, 刘小宁, 周国慧   

  1. 中国科学院研究生院资源与环境学院, 北京 100049
  • 收稿日期:2012-03-06 修回日期:2012-03-30 发布日期:2013-03-15
  • 通讯作者: 胡正义
  • 基金资助:

    国家科技重大专项(2011ZX05060-005,2008ZX05039-003)资助

Influence of Cl- and HCO3- ions on adsorption kinetics of F- on activated alumina in coalbed methane co-produced water

HUANG Li-Juan, HU Zheng-Yi, LU Jia, BAO Peng, LIU Xiao-Ning, ZHOU Guo-Hui   

  1. College of Resources and Environment, Graduate University, Chinese Academy of Sciences, Beijing 100049, China
  • Received:2012-03-06 Revised:2012-03-30 Published:2013-03-15

摘要:

通过静态试验研究了高质量浓度Cl-(1000 mg·L-1)和HCO3-(2000 mg·L-1)对活性氧化铝吸附F-(10 mg·L-1)的动力学特性影响.结果表明:高质量浓度Cl-使活性氧化铝吸附F-速率加快,吸附量增加;高质量浓度HCO3-有相反趋势.建议采用活性氧化铝吸附除氟法作为煤层气产出水F-净化工艺时,考虑高质量浓度Cl-和HCO3-效应.

关键词: 煤层气产出水, 活性氧化铝, 氟, Cl-, HCO3-

Abstract:

Activated alumina (AA) is widely used for defluoridation. Batch experiments were carried out to investigate the influence of Cl- (1000 mg·L-1) and HCO3- (2000 mg·L-1) on adsorption kinetics of F- (10 mg·L-1) on AA in coalbed methane co-produced water (CBMW). The results show that in the presence of Cl- the adsorption rate and the equilibrium absorption capacity increase, but in the presence of HCO3- both the quantities decrease. These effects should be considered when one treats CBMW.

Key words: CBM co-produced water, activated alumina, fluoride, chloride ion, bicarbonate ion

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