Gypsum scaling in forward osmosis: Role of membrane surface chemistry
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- 作者：Ming Xie ; ming.xie@vu.edu.au" class="auth_mail" title="E-mail the corresponding author ; Stephen R. Gray
- 关键词：Forward osmosis ; Gypsum scaling ; Cellulose triacetate ; Polyamide ; Fourier transform infrared spectroscopy ; X-ray photoelectron spectroscopy
- 刊名：Journal of Membrane Science
- 出版年：2016
- 出版时间：1 September 2016
- 年：2016
- 卷：513
- 期：Complete
- 页码：250-259
- 全文大小：2373 K
文摘
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Gypsum scaling in FO was compared between CTA and TFC membranes.
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Gypsum scaling of CTA membrane was dominated by bulk crystallisation.
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Gypsum scaling of TFC membrane was driven by surface crystallisation.
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No interaction –OH on CTA membrane was demonstrated in gypsum scaling.
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FTIR and XPS show interaction between –COOH on TFC membrane with Ca2+.