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Researchers from Zhejiang University Report Recent Findings in Purification Technology

June 17, 2014

By a News Reporter-Staff News Editor at Journal of Technology -- Investigators publish new report on Purification Technology. According to news reporting originating in Hangzhou, People's Republic of China, by VerticalNews journalists, research stated, "Our previous work has shown that membrane-free electrodeionization (MFEDI) is a promising process for high purity water (HPW) production. However, this technique was only suitable to feed water with low conductivity, usually below 20 mu s/cm."

The news reporters obtained a quote from the research from Zhejiang University, "To extend the applicable range, type I strong base resin was used together with type II strong base resin in this work, due to the high capacity and easy regeneration of type II strong base resin and the excellent purification performance of type I strong base resin. It was demonstrated that although the conductivity of the feed water increased to 50 mu S/cm, effective purification was still achieved, with effluent conductivity being 0.056-0.066 mu S/cm only. The average conductivity of the concentrate collected during regeneration was over 380 mu S/cm, indicating high regenerating efficiency. The water recovery reached 86% and the power consumption was 1.5 kW h/m(3) water."

According to the news reporters, the research concluded: "In addition, repetitive experimental results showed that the MFEDI system could work stably."

For more information on this research see: Desalination of water with high conductivity using membrane-free electrodeionization. Separation and Purification Technology, 2014;128():39-44. Separation and Purification Technology can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier -; Separation and Purification Technology -

Our news correspondents report that additional information may be obtained by contacting X.L. Shen, Zhejiang University, Dept. of Environm Engn, Hangzhou 310058, Zhejiang, People's Republic of China. Additional authors for this research include T.J. Li, X.P. Jiang and X.M. Chen.

Keywords for this news article include: Asia, Hangzhou, Purification Technology, People's Republic of China

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Source: Journal of Technology

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