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题名: Utilization of aluminum hydroxide waste generated in fluoride adsorption and coagulation processes for adsorptive removal of cadmium ion
作者: Ju, Jiawei; Liu, Ruiping; He, Zan; Liu, Huijuan; Zhang, Xiwang; Qu, Jiuhui
刊名: FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
出版日期: 2016-06
卷号: 10, 期号:3, 页码:467-476
关键词: Al(OH)(3) ; fluoride ; cadmium ; adsorption ; reclamation ; sequential extraction
DOI: 10.1007/s11783-015-0809-7
部门归属: 环境水质学国家重点实验室
英文摘要: Although Al-based coagulation and adsorption processes have been proved highly efficient for fluoride (F) removal, the two processes both generate large amount of Al(OH)(3) solid waste containing F (Al(OH)(3)-F). This study aimed to investigate the feasibility of utilizing Al(OH)(3)-F generated in Al(OH)(3) adsorption (Al(OH)(3)-F-ads) and coagulation (Al(OH)(3)-F-coag) for the adsorption of cadmium ion (Cd(II)). The adsorption capacity of Al(OH)(3)-F-ads and Al(OH)(3)-F-coag for Cd(II) was similar as that of pristine aluminum hydroxide (Al(OH)(3)), being of 24.39 and 19.90 mg.g(-1), respectively. The adsorption of Cd(II) onto Al(OH)(3)-F-ads and Al(OH)(3)-F-coag was identified to be dominated by ion-exchange with sodium ion (Na+) or hydrogen ion (H+), surface microprecitation, and electrostatic attraction. The maximum concentration of the leached fluoride from Al(OH)(3)-F-ads and Al(OH)(3)-F-coag is below the Chinese Class-I IndustrialWastewater Discharge Standard for fluoride (<10 mg.L-1). This study demonstrates that the Al(OH)(3) solid wastes generated in fluoride removal process could be potentially utilized as a adsorbent for Cd(II) removal.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/36087
Appears in Collections:环境水质学国家重点实验室_期刊论文

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Recommended Citation:
Ju, Jiawei,Liu, Ruiping,He, Zan,et al. Utilization of aluminum hydroxide waste generated in fluoride adsorption and coagulation processes for adsorptive removal of cadmium ion[J]. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,2016,10(3):467-476.
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