Seo Kyu Won, Choi Yong-Su, Gu Man Bock, Kwon Eilhann E, Tsang Yiu Fai, Rinklebe Jörg, Park Chanhyuk
Small & Medium Enterprises Support Center, Korea Institute of Science and Technology, Seoul 02792, South Korea; Department of Biotechnology, Korea University, Seoul 02841, South Korea.
Small & Medium Enterprises Support Center, Korea Institute of Science and Technology, Seoul 02792, South Korea.
Chemosphere. 2017 Nov;186:202-208. doi: 10.1016/j.chemosphere.2017.07.150. Epub 2017 Jul 28.
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 (MLSS) 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.
以形成芽孢的细菌为主导的膜基好氧消化系统的中试规模研究被评估为潜在的污泥处理工艺（STP）之一。污泥中的大部分有机物（90.1%）被STP中的特定细菌去除，该系统由混合液悬浮固体（MLSS）接触反应器（MCR）、MLSS氧化反应器（MOR）和膜生物反应器（MBR）组成。污泥在MBR中积累而不排放，然后STP的出水被送入水资源回收设施（WRRF）的第一步。根据对所有反应器中微生物群落的分析，STP中存在各种芽孢杆菌属物种，主要是由于它们对极端条件的固有抗性。由于存活的芽孢杆菌属物种可能会消耗降解微生物以促进自身生长，这些基于形成芽孢细菌的STP在长期运行时可能适合污泥减量。
