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Evaluation of A Novel Split-Feeding Anaerobic/Oxic Baffled Reactor (A/OBR) for Foodwaste Anaerobic Digestate: Performance, Modeling and Bacterial Community

Wang Shaojie, Peng Liyu, Jiang Yixin, Gikas Petros, Zhu Baoning, Su Haijia

Απλή Εγγραφή


URIhttp://purl.tuc.gr/dl/dias/47FF08DA-F4C1-4C3B-8F07-20072EFBDF1E-
Αναγνωριστικόhttps://www.nature.com/articles/srep34640-
Αναγνωριστικόhttps://doi.org/10.1038/srep34640-
Γλώσσαen-
Μέγεθος14 pagesen
ΤίτλοςEvaluation of A Novel Split-Feeding Anaerobic/Oxic Baffled Reactor (A/OBR) for Foodwaste Anaerobic Digestate: Performance, Modeling and Bacterial Communityen
ΔημιουργόςWang Shaojieen
ΔημιουργόςPeng Liyuen
ΔημιουργόςJiang Yixinen
ΔημιουργόςGikas Petrosen
ΔημιουργόςΓκικας Πετροςel
ΔημιουργόςZhu Baoningen
ΔημιουργόςSu Haijiaen
ΕκδότηςNature Publishing Groupen
ΠερίληψηTo enhance the treatment efficiency from an anaerobic digester, a novel six-compartment anaerobic/oxic baffled reactor (A/OBR) was employed. Two kinds of split-feeding A/OBRs R2 and R3, with influent fed in the 1 st, 3 rd and 5 th compartment of the reactor simultaneously at the respective ratios of 6:3:1 and 6:2:2, were compared with the regular-feeding reactor R1 when all influent was fed in the 1 st compartment (control). Three aspects, the COD removal, the hydraulic characteristics and the bacterial community, were systematically investigated, compared and evaluated. The results indicated that R2 and R3 had similar tolerance to loading shock, but the R2 had the highest COD removal of 91.6% with a final effluent of 345 mg/L. The mixing patterns in both split-feeding reactors were intermediate between plug-flow and completely-mixed, with dead spaces between 8.17% and 8.35% compared with a 31.9% dead space in R1. Polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) analysis revealed that the split-feeding strategy provided a higher bacterial diversity and more stable bacterial community than that in the regular-feeding strategy. Further analysis indicated that Firmicutes, Bacteroidetes, and Proteobacteria were the dominant bacteria, among which Firmicutes and Bacteroidetes might be responsible for organic matter degradation and Proteobacteria for nitrification and denitrification. en
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2018-10-09-
Ημερομηνία Δημοσίευσης2016-
Θεματική ΚατηγορίαBiological techniquesen
Θεματική ΚατηγορίαMicrobial communitiesen
Θεματική ΚατηγορίαEnvironmental biotechnologyen
Θεματική ΚατηγορίαEnvironmental sciencesen
Βιβλιογραφική ΑναφοράS. Wang, L. Peng, Y. Jiang, P. Gikas, B. Zhu and H. Su, "Evaluation of a novel split-feeding anaerobic/oxic baffled reactor (A/OBR) for foodwaste anaerobic digestate: performance, modeling and bacterial community," Sci. Rep., vol. 6, Oct. 2016. doi: 10.1038/srep34640en

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