This study evaluated the performance of soil and coal cinder used as substrate in vertical-flow constructed wetlands for removal of fluoride and arsenic. Two duplicate pilot-scale artificial wetlands were set up, planted respectively with cannas, calamus and no plant as blank, fed with a synthetic sewage solution. Laboratory (batch) incubation experiments were also carried out separately to ascertain the fluoride and arsenic adsorption capacity of the two materials (i.e. soil and coal cinder). The results showed that both soil and coal cinder had quite high fluoride and arsenic adsorption capacity. The wetlands were operated for two months. The concentrations of fluoride and arsenic in the effluent of the blank wetlands were obviously higher than in the other wetlands planted with cannas and calamus. Fluoride and arsenic accumulation in the wetlands body at the end of the operation period was in range of 14.07–37.24% and 32.43–90.04%, respectively, as compared with the unused media.
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Research Article|
June 14 2014
Removal of fluoride and arsenic by pilot vertical-flow constructed wetlands using soil and coal cinder as substrate Available to Purchase
Juan Li;
Juan Li
1College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
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Xinchun Liu;
1College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
E-mail: [email protected]
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Zhisheng Yu;
Zhisheng Yu
1College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
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Xin Yi;
Xin Yi
1College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
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Yiwen Ju;
Yiwen Ju
2College of Earth Science, University of Chinese Academy of Sciences, Beijing 100049, China
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Jing Huang;
Jing Huang
1College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
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Ruyin Liu
Ruyin Liu
1College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
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Water Sci Technol (2014) 70 (4): 620–626.
Article history
Received:
February 26 2014
Accepted:
May 29 2014
Citation
Juan Li, Xinchun Liu, Zhisheng Yu, Xin Yi, Yiwen Ju, Jing Huang, Ruyin Liu; Removal of fluoride and arsenic by pilot vertical-flow constructed wetlands using soil and coal cinder as substrate. Water Sci Technol 1 August 2014; 70 (4): 620–626. doi: https://doi.org/10.2166/wst.2014.273
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