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Influence of Cl- and HCO3- ions on adsorption kinetics of F- on activated alumina in coalbed methane co-produced water
Received date: 2012-03-06
Revised date: 2012-03-30
Online published: 2012-03-30
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
HUANG Li-Juan , HU Zheng-Yi , LU Jia , BAO Peng , LIU Xiao-Ning , ZHOU Guo-Hui . Influence of Cl- and HCO3- ions on adsorption kinetics of F- on activated alumina in coalbed methane co-produced water[J]. Journal of University of Chinese Academy of Sciences, 2013 , 30(2) : 213 -219 . DOI: 10.7523/j.issn.1002-1175.2013.02.011
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