期刊
BIORESOURCE TECHNOLOGY
卷 291, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2019.121918
关键词
Anaerobic rotary membrane bioreactor; Food waste recycling wastewater; Organic loading rate; Archaeal community structure; Bacterial community structure
资金
- Technology Advancement Research Program - Ministry of Land, Infrastructure and Transport of the Korean government [18CTAP-C116746-03]
- National Research Council of Science & Technology (NST) grant by the Korea government (MSIT) [CAP-18-07-KICT]
- Korea Institute of Science and Technology (KIST) Institutional Program [2E29660]
- National Research Council of Science & Technology (NST), Republic of Korea [CAP-18-07-KICT] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2E29660] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
This study first evaluated the process performances and microbial community structures of anaerobic rotary membrane bioreactor (ARMBR) fed with food waste recycling wastewater (FRW). Three identical ARMBRs were operated under different organic loading rate (OLR) conditions (1.5, 3.0, and 6.0 kg COD m(-3) d(-1)) after the same start-up periods. The start-up performances and archaeal community structures differed among the ARMBRs, probably due to the sudden OLR shock. After the start-up, bio-methane was stably produced until the end of the operational period, with all of the ARMBRs showing >95% COD removal efficiency. Methanosaeta spp. was the predominant methanogen; diverse hydrogenotrophic methanogens co-existed. Bacteroidetes-like bacteria and Candidatus Cloacamonas acted as major fermentative bacteria producing acetate or hydrogen for the growth of methanogens. The results suggest that our ARMBR system can be a promising option to manage high-strength organic wastewater such as FRW.
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