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Pilot-scale investigation of sludge reduction in aerobic digestion system with endospore-forming bacteria

Title
Pilot-scale investigation of sludge reduction in aerobic digestion system with endospore-forming bacteria
Authors
Seo, Kyu WonChoi, Yong-SuGu, Man BockKwon, Eilhann E.Tsang, Yiu FaiRinklebe, JoergPark, Chanhyuk
Ewha Authors
박찬혁
Issue Date
2017
Journal Title
CHEMOSPHERE
ISSN
0045-6535JCR Link

1879-1298JCR Link
Citation
CHEMOSPHERE vol. 186, pp. 202 - 208
Keywords
Sewage sludgeEndospore-forming bacteriaSludge treatmentBacillusAerobic digestion
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Indexed
SCI; SCIE; SCOPUS WOS
Document Type
Article
Abstract
A pilot-scale investigation of membrane-based aerobic digestion system dominated by endospore-forming bacteria was evaluated as one of the potential sludge treatment processes (STP). Most of the organic matter in the sludge was removed (90.1%) by the particular bacteria in the STP, which consisted of mixed liquor suspended solid (MISS) contact reactor (MCR), MLSS oxidation reactor (MOR), and membrane bioreactor (MBR). The sludge was accumulated in the MBR without wasting, and then the effluent in STP was fed into the first step in water resource recovery facility (WRRF). According to the analysis of microbial communities in all reactors, various Bacillus species were present in the STP, mainly due to their intrinsic resistance to the extreme conditions. As the surviving Bacillus species might consume degraded microorganisms for their growth, these endospore-forming bacteria-based STP could be suitable for the sludge reduction when they operated for a long time. (C) 2017 Elsevier Ltd. All rights reserved.
DOI
10.1016/j.chemosphere.2017.07.150
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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