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篇目详细内容 |
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【篇名】 |
Electro-assisted regeneration of ion exchange resins |
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【刊名】 |
Frontiers of Environmental Science and Engineering in China |
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【刊名缩写】 |
Front.Environ.Sci.Engin.China |
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【ISSN】 |
1673-7415 |
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【EISSN】 |
1673-7520 |
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【DOI】 |
10.1007/s11783-008-0069-x |
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【出版社】 |
Higher Education Press and Springer-Verlag |
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【出版年】 |
2008 |
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【卷期】 |
2
卷4期 |
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【页码】 |
410-414
页,共
5
页 |
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【作者】 |
LIU Zhigang;
WANG Ying;
LI Yansheng;
CHANG Hui;
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【关键词】 |
electro-assisted regeneration (EAR); Al form resins; desalination; Al(OH)3 |
【摘要】 |
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Electro-assisted regeneration (EAR) for the mixed bed of strongly acidic cation and weakly basic anion exchange resins with the Al(OH)3 suspension in a three-compartment cell was investigated. The desalination experiments were carried out to evaluate the characteristic of the regenerated mixed resins. Experimental results showed that the efficiency of resin regeneration was strictly dependent on the voltage, regeneration time, and feed regenerant flow rate. The amount of the effluent reached 50 times the volume of the resins bed, and the conductivity was less than 1.0 μs/cm. Compared to the conventional ER, the total effluent volume of EAR was about 1000 mL more than that of ER under the same conditions, and the outlet conductivity was significantly lower. The desalination and regeneration reaction mechanisms of the mixed resins indicated the regeneration efficiency of resin with Al(OH)3 as the regenerant was much higher than that with H2O. |
