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The effect of biological pre-filtration on the performance of conventional surface water treatment

2006; UWA Publishing; Volume: 55; Issue: 2 Linguagem: Inglês

10.2166/aqua.2006.009

1365-2087

Gerald Heinicke, Torsten Hedberg, Frank Persson, Malte Hermansson, Wolfgang Uhl,

Wastewater Treatment and Nitrogen Removal

Research Article| March 01 2006 The effect of biological pre-filtration on the performance of conventional surface water treatment Gerald Heinicke; Gerald Heinicke 1DHI Water and Environment, Lilla Bommen 1,41104, Göteborg, Sweden Tel: +46 709 996923; E-mail: gerald.heinicke@dhi.se Search for other works by this author on: This Site PubMed Google Scholar Torsten Hedberg; Torsten Hedberg 2Water Environment Technology,, Chalmers University of Technology, 41296 Göteborg, Sweden Search for other works by this author on: This Site PubMed Google Scholar Frank Persson; Frank Persson 3CMB, Microbiology, Göteborg University, Box 462,40530, Göteborg, Sweden Search for other works by this author on: This Site PubMed Google Scholar Malte Hermansson; Malte Hermansson 3CMB, Microbiology, Göteborg University, Box 462,40530, Göteborg, Sweden Search for other works by this author on: This Site PubMed Google Scholar Wolfgang Uhl Wolfgang Uhl 4Institute for Urban Water Management (ISI), Technische Universität Dresden, 01062, Dresden, Germany Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2006) 55 (2): 109–119. https://doi.org/10.2166/aqua.2006.009 Article history Received: January 28 2005 Accepted: December 05 2005 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 Gerald Heinicke, Torsten Hedberg, Frank Persson, Malte Hermansson, Wolfgang Uhl; The effect of biological pre-filtration on the performance of conventional surface water treatment. Journal of Water Supply: Research and Technology-Aqua 1 March 2006; 55 (2): 109–119. doi: https://doi.org/10.2166/aqua.2006.009 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Many waterworks that apply conventional treatment of surface water, by flocculation and filtration, have to deal with seasonal changes of the raw water quality, increasing concentrations of natural organic matter (NOM), and the necessity to improve particle removal. A pilot plant was operated to closely resemble the full-scale treatment at a surface water treatment plant in Göteborg, Sweden. Treatment consisted of flocculation, sedimentation and rapid granular activated carbon (GAC) filtration. To assess the effects of biological pre-filtration, the feed water to the pilot plant was switched weekly between surface water and biofiltered water which had passed through adsorptively exhausted GAC at an empty bed contact time (EBCT) of 34 minutes. The processes were investigated with regard to NOM, the bacterial re-growth potential, as well as their function as a barrier for suspended particles that originate from the raw water. Biological pre-filtration improved particle removal and made it less dependent on the post-sedimentation GAC rapid filter, thereby improving robustness. Episodically elevated concentrations of earthy-musty odour compounds, which are not reliably removed by flocculation and filtration, were reduced by the biofilters. The process combination may be of particular interest for waterworks with variable raw water quality. autofluorescent particles, biofiltration, conventional treatment, NOM, odour, pre-treatment This content is only available as a PDF. © IWA Publishing 2006 You do not currently have access to this content.