Effects of reversible and irreversible membrane fouling on virus removal by a coagulation–microfiltration system

Research Article| November 01 2008 Effects of reversible and irreversible membrane fouling on virus removal by a coagulation–microfiltration system Nobutaka Shirasaki; Nobutaka Shirasaki 1Division of Built Environment, Graduate School of Engineering, Hokkaido University, N13W8 Sapporo 060-8628, Japan Tel.: +81-11-706-7230 Fax: +81-11-706-7279; E-mail: nobutaka@eng.hokudai.ac.jp Search for other works by this author on: This Site PubMed Google Scholar Taku Matsushita; Taku Matsushita 1Division of Built Environment, Graduate School of Engineering, Hokkaido University, N13W8 Sapporo 060-8628, Japan Search for other works by this author on: This Site PubMed Google Scholar Yoshihiko Matsui; Yoshihiko Matsui 1Division of Built Environment, Graduate School of Engineering, Hokkaido University, N13W8 Sapporo 060-8628, Japan Search for other works by this author on: This Site PubMed Google Scholar Koichi Ohno Koichi Ohno 1Division of Built Environment, Graduate School of Engineering, Hokkaido University, N13W8 Sapporo 060-8628, Japan Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2008) 57 (7): 501–506. https://doi.org/10.2166/aqua.2008.048 Article history Received: August 01 2007 Accepted: November 22 2007 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation Nobutaka Shirasaki, Taku Matsushita, Yoshihiko Matsui, Koichi Ohno; Effects of reversible and irreversible membrane fouling on virus removal by a coagulation–microfiltration system. Journal of Water Supply: Research and Technology-Aqua 1 November 2008; 57 (7): 501–506. doi: https://doi.org/10.2166/aqua.2008.048 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex We evaluated the removal of virus (bacteriophage Qβ) after hydraulic backwashing and the effects of reversible and irreversible membrane fouling on virus removal by a coagulation–microfiltration (MF) system. The rate of virus removal in the coagulation–MF system was low at the beginning of filtration but increased with filtration time, owing to the accumulation of foulant on the membrane. The rate of virus removal thereafter remained high, even after hydraulic backwashing of the membrane to remove reversible membrane foulant. The presence of irreversible, rather than reversible, membrane foulant contributed to the increase in virus removal rate observed at the beginning of filtration. The irreversible membrane fouling maintained a high virus removal rate even after hydraulic backwashing. Moreover, irreversible fouling of the membrane during long-term filtration (1 month) improved virus removal in the coagulation–MF system, and the membrane excluded virus particles even in the absence of coagulation pretreatment. Therefore, the accumulation of irreversible membrane foulant with filtration time played an important role in virus removal by the coagulation–MF system. coagulation, membrane fouling, microfiltration (MF), virus removal © IWA Publishing 2008 You do not currently have access to this content.