Effects of acid-base cleaning procedure on structure and properties of anion-exchange membranes used in electrodialysis
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- 作者：W. Garcia-Vasqueza ; L. Dammaka ; dammak@u-pec.fr" class="auth_mail" title="E-mail the corresponding author ; C. Larcheta ; V. Nikonenkob ; D. Grandea
- 关键词：Anion-exchange membranes ; Electrodialysis ; Artificial ageing ; Cleaning-in-place
- 刊名：Journal of Membrane Science
- 出版年：2016
- 出版时间：1 June 2016
- 年：2016
- 卷：507
- 期：Complete
- 页码：12-23
- 全文大小：2333 K
文摘
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Long-term behavior of AEMs after industrial ED for whey demineralization was studied.
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AEM ageing is due to OH− attack during the cleaning-in-place procedure used in ED.
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Strong alkaline conditions cause the transformation of AEM polymeric binder, i.e. PVC.
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Cleaning cycles caused entanglement modifications on the polymer structure of AEMs.
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Ageing due to ex-situ cleaning cycles is similar to that obtained after industrial ED.