Linking process performances and core microbial community structures in anaerobic membrane bioreactor with rotatory disk (ARMBR) system fed with high-strength food waste recycling wastewater

Hyunduk Seo; Kyungjin Cho; Jaewon Shin; Minjoo Lee; Joonhong Park; Byung Chan Lee; Kyung Guen Song

doi:10.1016/j.biortech.2019.121918

Linking process performances and core microbial community structures in anaerobic membrane bioreactor with rotatory disk (ARMBR) system fed with high-strength food waste recycling wastewater

Bioresour Technol. 2019 Nov:291:121918. doi: 10.1016/j.biortech.2019.121918. Epub 2019 Jul 27.

Authors

Hyunduk Seo¹, Kyungjin Cho², Jaewon Shin³, Minjoo Lee⁴, Joonhong Park⁴, Byung Chan Lee⁵, Kyung Guen Song⁶

Affiliations

¹ Water Cycle Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Department of Civil and Environmental Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-Gu, Seoul 03722, Republic of Korea.
² Water Cycle Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea.
³ Water Cycle Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; School of Civil, Environmental & Architectural Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea.
⁴ Department of Civil and Environmental Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-Gu, Seoul 03722, Republic of Korea.
⁵ Department of Civil Engineering and Landscape Architecture, Suncheon Jeil College, 17 Jeildaehak-gil, Suncheon, Cheonnam 57997, Republic of Korea.
⁶ Water Cycle Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea. Electronic address: kgsong@kist.re.kr.

PMID: 31394487
DOI: 10.1016/j.biortech.2019.121918

Abstract

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.

Keywords: Anaerobic rotary membrane bioreactor; Archaeal community structure; Bacterial community structure; Food waste recycling wastewater; Organic loading rate.

MeSH terms

Anaerobiosis
Bioreactors
Methane
Microbiota*
Waste Disposal, Fluid
Wastewater*

Substances

Waste Water
Methane