caa a22 4500 465823025 CHVBK 20180323112141.0 cr unu---uuuuu 170327e19901201xx s 000 0 eng 10.1007/BF00170070 doi (NATIONALLICENCE)springer-10.1007/BF00170070 The use of polyurethane foam for microbial retention in methanogenic fermentation of propionate [Elektronische Daten] [Satoshi Fukuzaki, Naomichi Nishio, Shiro Nagai] Summary: The use of polyurethane foam (PUF) as a microbial support carrier was evaluated with a mesophilic propionate-acclimatized sludge. The acclimatized sludge could be immobilized rapidly and stably in PUF of smaller pore size under shaking conditions. The sludge retained in PUF could maintain a high propionate metabolic activity for a long period. High conversion rates of propionate to methane of 23-65 g chemical oxygen demand (COD)·1−1 · day−1 could be achieved in reactors packed with PUF-retained sludge. A dense sludge of 0.08-0.25 g mixed-liquor volatile suspended solids (MLVSS)·cm−3 was retained in PUF. Microscopic analysis suggested that filamentous microorganisms, e.g., Methanothrix spp. could play an important role in the efficient retention of acclimatized sludge in PUF. Springer-Verlag, 1990 Fukuzaki Satoshi Department of Fermentation Technology, Faculty of Engineering, Hiroshima University, Saijo-cho, 724, Higashi-Hiroshima, Japan aut Nishio Naomichi Department of Fermentation Technology, Faculty of Engineering, Hiroshima University, Saijo-cho, 724, Higashi-Hiroshima, Japan aut Nagai Shiro Department of Fermentation Technology, Faculty of Engineering, Hiroshima University, Saijo-cho, 724, Higashi-Hiroshima, Japan aut Applied Microbiology and Biotechnology Springer-Verlag 34/3(1990-12-01), 408-413 0175-7598 34:3<408 1990 34 253 https://doi.org/10.1007/BF00170070 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00170070 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fukuzaki Satoshi Department of Fermentation Technology, Faculty of Engineering, Hiroshima University, Saijo-cho, 724, Higashi-Hiroshima, Japan aut NATIONALLICENCE 700 1- Nishio Naomichi Department of Fermentation Technology, Faculty of Engineering, Hiroshima University, Saijo-cho, 724, Higashi-Hiroshima, Japan aut NATIONALLICENCE 700 1- Nagai Shiro Department of Fermentation Technology, Faculty of Engineering, Hiroshima University, Saijo-cho, 724, Higashi-Hiroshima, Japan aut NATIONALLICENCE 773 0- Applied Microbiology and Biotechnology Springer-Verlag 34/3(1990-12-01), 408-413 0175-7598 34:3<408 1990 34 253 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer