Influence of calcium on the evolution of irreversible fouling in microfiltration/ultrafiltration membranes

Research Article| September 01 2007 Influence of calcium on the evolution of irreversible fouling in microfiltration/ultrafiltration membranes Hiroshi Yamamura; Hiroshi Yamamura 1Division of Built Environment, Hokkaido University, N13W8, Kita-ku, Sapporo, 060-8628, Japan Tel.: 011-706-6267Fax: 011-706-6267; E-mail: yamamura@eng.hokduai.ac.jp Search for other works by this author on: This Site PubMed Google Scholar Kenji Okimoto; Kenji Okimoto 1Division of Built Environment, Hokkaido University, N13W8, Kita-ku, Sapporo, 060-8628, Japan Search for other works by this author on: This Site PubMed Google Scholar Katsuki Kimura; Katsuki Kimura 1Division of Built Environment, Hokkaido University, N13W8, Kita-ku, Sapporo, 060-8628, Japan Search for other works by this author on: This Site PubMed Google Scholar Yoshimasa Watanabe Yoshimasa Watanabe 1Division of Built Environment, Hokkaido University, N13W8, Kita-ku, 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 (2007) 56 (6-7): 425–434. https://doi.org/10.2166/aqua.2007.018 Article history Received: April 05 2007 Accepted: June 19 2007 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn MailTo 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 Hiroshi Yamamura, Kenji Okimoto, Katsuki Kimura, Yoshimasa Watanabe; Influence of calcium on the evolution of irreversible fouling in microfiltration/ultrafiltration membranes. Journal of Water Supply: Research and Technology-Aqua 1 September 2007; 56 (6-7): 425–434. doi: https://doi.org/10.2166/aqua.2007.018 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Water treatment using microfiltration (MF)/ultrafiltration (UF) membranes is gaining in popularity all over the world but the problem of membrane fouling needs to be addressed. In this study, the influence of calcium on irreversible fouling in MF/UF membrane filtering natural organic matter (NOM) was investigated on the basis of a series of bench-scale filtration tests. Two types of feed water, solution of commercially available humic acid and surface water used for drinking water source, were filtered with four different MF/UF membranes. It was found that the influence of calcium on the evolution of irreversible fouling would differ depending on the feed water characteristics. Calcium facilitated the aggregation of small molecules with hydrophobic nature contained in commercially available humic acid and the aggregate probably plugged the micropores, resulting in severe irreversible fouling. The effect of calcium was not obvious in the case of the surface water used in this study. This result implies that the use of commercial humic acid for the examination of membrane fouling would be inappropriate. calcium, irreversible fouling, microfiltration, natural organic matter, ultrafiltration This content is only available as a PDF. © IWA Publishing 2007 You do not currently have access to this content.