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Desalination and Water Treatment Volume 53, 2015 - Issue 8
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Articles

Removal of Sr2+ ions from simulated wastewater by electrodeionization

Lei WangEngineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang621010, P.R. ChinaTel./Fax: +86 816 6089372
,
Yaping ZhangEngineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang621010, P.R. ChinaTel./Fax: +86 816 6089372Correspondence[email protected]
,
Jinchao LiEngineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang621010, P.R. ChinaTel./Fax: +86 816 6089372
,
Xiaoyan LinEngineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang621010, P.R. ChinaTel./Fax: +86 816 6089372
&
Xuegang LuoEngineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang621010, P.R. ChinaTel./Fax: +86 816 6089372
Pages 2125-2133 | Received 02 Jul 2013, Accepted 27 Oct 2013, Published online: 18 Nov 2013
 
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Abstract

Electrodeionization (EDI) was used for the removal of Sr2+ from simulated wastewater. The effects of several operational variables, including the flow rate, the initial pH, and the Sr2+ concentration, were investigated, respectively. The optimum operational parameters are as follows: the initial pH of feed solution is 7.0, the flow rate and the concentration of feed solution are 1.0 L h−1 and 50 mg L−1. Under these conditions, the residual Sr2+ concentration is as low as 0.0415 mg L−1 after 200 min of EDI process, the energy consumption is 7.66 kW h m−3, and the current efficiency 9.17%.

Acknowledgments

Financial supports from National Natural Science Foundation of China (No. 21206138) and Opening Foundation of Engineering Research Center of Biomass Materials, Ministry of Education (Southwest University of Science and Technology) (No. 12zxbk10) are greatly appreciated.

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