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Comparative characterisation of different commercial UF membranes for drinking water production

2000; UWA Publishing; Volume: 49; Issue: 6 Linguagem: Inglês

10.2166/aqua.2000.0027

1365-2087

B. Schlichter, V. Mavrov, H. Chmiel,

Membrane Separation and Gas Transport

Research Article| September 01 2000 Comparative characterisation of different commercial UF membranes for drinking water production Bernhard Schlichter; Bernhard Schlichter 1Institute for Environmentally Compatible Process Technology University of Saarland, Im Stadtwald 47 D-66123 Saarbrücken, Germany Tel: +49 681 9345 340; Fax +49 681 9345 380; E-mail: b.schlichter@rz.uni-sb.de Search for other works by this author on: This Site PubMed Google Scholar Valko Mavrov; Valko Mavrov 2Institute for Environmentally Compatible Process Technology University of Saarland, Im Stadtwald 47 D-66123 Saarbrücken, Germany Search for other works by this author on: This Site PubMed Google Scholar Horst Chmiel Horst Chmiel 2Institute for Environmentally Compatible Process Technology University of Saarland, Im Stadtwald 47 D-66123 Saarbrücken, Germany Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2000) 49 (6): 321–328. https://doi.org/10.2166/aqua.2000.0027 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Twitter LinkedIn Tools Icon Tools Cite Icon Cite Permissions Search Site Search nav search search input Search input auto suggest search filter All ContentAll JournalsThis Journal Search Advanced Search Citation Bernhard Schlichter, Valko Mavrov, Horst Chmiel; Comparative characterisation of different commercial UF membranes for drinking water production. Journal of Water Supply: Research and Technology-Aqua 1 September 2000; 49 (6): 321–328. doi: https://doi.org/10.2166/aqua.2000.0027 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex In this study, nine commercially available ultrafiltration membranes used in drinking water production were characterised. The aim of the study was to compare the molecular weight cut-off (MWCO) and the membrane permeability of a selection of currently available ultrafiltration membranes. Permeability and MWCO are important criteria for the selection of ultrafiltration membranes with regard to efficiency and rejection of dissolved and particulate substances. This study provides an overview of the differences in cut-off and permeability between commercial UF membranes with similar specifications.To this end, tests were conducted using eight hollow fibre membranes with effective membrane surface areas of between 0.04 and 0.26 m2 and one type of flat sheet membrane with an effective filtration area of 0.0044 m2. Cross-flow filtration experiments using a mixture of dextrane as a feed solution were performed to determine MWCO. The molecular weight of the dextrane used in the feed solution ranged from 8–2,000 kD. The concentration distribution of the dextrane in the feed and the permeate was determined by gel permeation chromatography (GPC) in the range of 10–1,000 kD.These tests showed that, from the nine UF membranes tested, four of them displayed a MWCO of below 1,000 kD with pure water permeabilities of 180–400 l/(m2 · h · bar). A further four displayed no MWCO in the range examined (10–1,000 kD) with pure water permeabilities of 130–880 l/(m2 · h · bar) and therefore their cut-offs must be in the range above 1,000 kD. One membrane, which showed no rejection for any dextrane fraction with a pure water permeability of 2,700 l/(m2 · h · bar), could be classed as a microfiltration membrane. characterisation, dextrane, drinking water, molecular weight cut-off (MWCO), ultrafiltration This content is only available as a PDF. © IWA Publishing 2000 You do not currently have access to this content.