Role of backwash water composition in alleviating ultrafiltration membrane fouling by sodium alginate and the effectiveness of salt backwashing
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- 作者：Haiqing Changa ; changingchq@126.com" class="auth_mail" title="E-mail the corresponding author ; Heng Lianga ; hitliangheng@163.com" class="auth_mail" title="E-mail the corresponding author ; Fangshu Qua ; qufangshu@163.com" class="auth_mail" title="E-mail the corresponding author ; Senlin Shaoa ; shaosenlin@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Huarong Yua ; huarongyu@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Bin Liua ; ahxclb@163.com" class="auth_mail" title="E-mail the corresponding author ; Wei Gaob ; hitgaowei@163.com" class="auth_mail" title="E-mail the corresponding author ; Guibai Lia ; hitsteven@gmail.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：ANOVA ; analysis of variance ; CaBW ; CaCl2 solution backwash ; DI ; deionized ; EDS ; energy dispersive spectrometer ; EfOM ; effluent organic matter ; HCE ; hydraulic cleaning efficiency ; HIFI ; hydraulically irreversible fouling index ; FTIR ; Fourier transform infrared ; MQBW ; ultrapure water backwash ; NaBW ; NaCl solution backwash ; NOM ; natural organic matter ; PES ; polyethersulfone ; RO ; reverse osmosis ; SA ; sodium alginate ; SABW ; SA solution backwash ; SA+Ca2+ ; feed water consisting of SA and Ca2+ ; SA+Na++C
- 刊名：Journal of Membrane Science
- 出版年：2016
- 出版时间：1 February 2016
- 年：2016
- 卷：499
- 期：Complete
- 页码：429-441
- 全文大小：1797 K
文摘
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SA-fouled UF membranes were backwashed by water with different compositions.
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The absence of divalent cations in backwash water significantly improved the HCE.
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The HCE depended on released SA which was related to the amount of released Ca2+.
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Multiple mechanisms governed the hydraulic cleaning of fouled UF membranes.
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Monovalent salt backwashing was efficient for cleaning SA-fouled UF membranes.