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›› 2013, Vol. 30 ›› Issue (2): 213-219.DOI: 10.7523/j.issn.1002-1175.2013.02.011

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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 Online:2013-03-15

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

CLC Number: