Journal of Zhejiang University SCIENCE
(ISSN 1009-3095, Monthly)

2005   Vol. 6B   No. 6   p.543-545

            [ Home Page ] | [ PDF Full Text ]   On-line Access Date:   May 22, 2005

A new configuration of membrane stack for retrieval of nickel absorbed in resins

CHEN Xue-fen, WU Zu-cheng†

(Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China)
 †E-mail: wuzc@zju.edu.cn
Received April 12, 2005; revision accepted Apr. 29, 2005

Abstract: A new configuration integrated ion exchange effect system with both electro-migration and electrochemical reaction in a single cell was developed to effectively retrieve metal ions from simulated wastewater using ion exchange resins without additive chemicals. By simply assembling cation exchange resins and anion exchange resins separated by homogeneous membranes, we found that the system will always be acidic in the concentrate compartment so that ion exchange resins could be in-situ regenerated without hydroxide precipitation. Such a realizable design will be really suitable for wastewater purification.

Key words: Nickel, Ion exchange resin, Electro-migration, Electrochemical
doi:10.1631/jzus.2005.B0543             CLC number: X703.1