Application of polyacrylamide flocculation with and without alum coagulation for mitigating ultrafiltration membrane fouling: Role of floc structure and bacterial activity
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- 作者：Ting Liua ; Yuanlong Liana ; Nigel Grahamb ; Wenzheng Yub ; w.yu@imperial.ac.uk" class="auth_mail" title="E-mail the corresponding author ; David Rooneyc ; Kening Suna ; bitkeningsun@163.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Ultrafiltration ; Membrane fouling ; Polyacrylamide ; Alum ; Pretreatment
- 刊名：Chemical Engineering Journal
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：307
- 期：Complete
- 页码：41-48
- 全文大小：1480 K
文摘
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Pretreatment with high MW PAM and alum induced low fouling and high quality treated water.
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High MW PAM (low dose) with alum formed large flocs with low fractal dimension.
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Combined alum-high MW PAM dosing produced thin and loose cake layers.
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In alum-PAM UF systems, ammonia and phosphorus were effectively removed.