title: Efficient performance and the microbial community changes of submerged anaerobic membrane bioreactor in treatment of sewage containing cellulose suspended solid at 25°C.
abstract: Influence of cellulose as suspended solid (SS) on the performance of submerged anaerobic membrane bioreactor (SAnMBR) was evaluated at 25°C using two types of synthetic sewage (SS contained or not). During the 110days operation, COD and BOD removal, CH4 gas recovery and cellulose accumulation were investigated in detail. The influence of cellulose as SS in sewage on the SAnMBR performance was not significant at HRT longer than12h and 65-72% of the influent COD was recovered as methane gas at HRT of 12h. At HRT of 6h, the quality of effluent got worse and the accumulation of cellulose was found in reactor. 16S rRNA analysis revealed that the microbial diversity distribution including Archaea and Bacteria changed due to the addition of SS in sewage and specific microbe for cellulose degradation such as Proteobacteria was detected. Sludge in SAnMBR could acclimate to characteristics of sewage by self-adaptation.
authors.affiliation: Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aoba, Sendai, Miyagi 980-8579, Japan; TAISEI Corporation, 344-1 Nase-cho, Totsuka, Yokohama, Kanagawa 245-0051, Japan.
authors.forename: Ryoya
authors.initials: R
authors.lastname: Watanabe
authors.affiliation: Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aoba, Sendai, Miyagi 980-8579, Japan; Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, PR China.
authors.forename: Yulun
authors.initials: Y
authors.lastname: Nie
authors.affiliation: KUBOTA Corporation, 1-1-1 Hama, Amagasaki, Hyogo 661-8567, Japan.
authors.forename: Shintaro
authors.initials: S
authors.lastname: Takahashi
authors.affiliation: KUBOTA Corporation, 1-1-1 Hama, Amagasaki, Hyogo 661-8567, Japan.
authors.forename: Shinichiro
authors.initials: S
authors.lastname: Wakahara
authors.affiliation: Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aoba, Sendai, Miyagi 980-8579, Japan. Electronic address: gyokuyu.ri.a5@tohoku.ac.jp.
authors.forename: Yu-You
authors.initials: YY
authors.lastname: Li
mesh_terms: D001105:Archaea / Q000378:metabolism*; D001419:Bacteria / Q000378:metabolism*; D044822:Biodiversity; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors / Q000382:microbiology*; D002482:Cellulose / Q000378:metabolism*; D008567:Membranes, Artificial; D008697:Methane / Q000378:metabolism; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012722:Sewage / Q000382:microbiology*; D013696:Temperature; D013997:Time Factors; D060753:Water Quality
chemical_list: D008567:Membranes, Artificial; D012336:RNA, Ribosomal, 16S; D012722:Sewage; D002482:Cellulose; D008697:Methane
keywords: 16S rRNA; Cellulose; Microbial community; SAnMBR; Sewage treatment; Suspended solid