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• W4253279687 abstract "Research Article| September 01 1997 The effect of extreme temperatures (70–80°C) on the effluent quality and sludge characteristics of UASB reactors Raghida Lepistö; Raghida Lepistö *Institute of Water and Environmental Engineering, Tampere University of Technology, P.O. Box 541, FIN-33101 Tampere, Finland Search for other works by this author on: This Site PubMed Google Scholar Jukka Rintala Jukka Rintala **Laboratory of Environmental Engineering, Helsinki University of Technology, Tietotie 1FIN-02150 Espoo, Finland Search for other works by this author on: This Site PubMed Google Scholar Water Sci Technol (1997) 36 (6-7): 325–332. https://doi.org/10.2166/wst.1997.0607 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 Raghida Lepistö, Jukka Rintala; The effect of extreme temperatures (70–80°C) on the effluent quality and sludge characteristics of UASB reactors. Water Sci Technol 1 September 1997; 36 (6-7): 325–332. doi: https://doi.org/10.2166/wst.1997.0607 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex The study focused on the effluent quality and sludge characteristics during the start-up and operation of extreme thermophilic (70 to 80°C) upflow anaerobic sludge bed (UASB) reactors, inoculated with mesophilic and thermophilic granular sludge and fed with acetate, volatile fatty acids (VFA), and thermomechanical pulping (TMP) whitewater. Low effluent quality and long start-up periods were observed during the start-up of the 70 to 76°C, VFA-fed UASB reactors inoculated with mesophilic granulae, while better effluent quality and considerably shorter start-up periods were observed when thermophilic (55/70°C) inocula were used. With VFA feed, a significant amount of acetate was removed at 70°C and even at 80°C, while propionate removal was negligible. With TMP whitewater feed, low VFA effluent concentration was obtained at 70°C. The volatile solids (VS) and the VS/total solids (TS) content of the sludge decreased significantly during the first 2–3 months of operation when mesophilic inocula were used. The initial specific methanogenic activity (ISMA) of the extreme thermophilic sludge decreased with increasing temperature and was slightly higher on glucose than on acetate. At 70 to 80°C, various rod-like bacteria were dispersed through the granulae in either individual or in low density micro colonies surrounded with a varying degree of precipitates. Acetate, anaerobic, effluent quality, extreme thermophilic, sludge characteristics, start-up, UASB This content is only available as a PDF. © IWA Publishing 1997 You do not currently have access to this content." @default.
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• W4253279687 title "The effect of extreme temperatures (70–80°C) on the effluent quality and sludge characteristics of UASB reactors" @default.
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