한빛사논문
- 조회389
Chayanee Chairattanawata, Arma Yulisaa, Seokhwan Hwanga,b
aDivision of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Cheongam-ro, Pohang, Gyeongbuk 37673, Republic of Korea
bYonsei University Institute for Convergence Research and Education in Advanced Technology (I-CREATE), 85, Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Republic of Korea
Corresponding author : Seokhwan Hwang
Abstract
The effect of sudden augmentation with fish waste (FW) on an operating anaerobic digester was investigated. Fifteen repeated FW spikes (FWS) composed of 1% or 5% FW per working volume of digester were suddenly fed into semi-continuous operation of a mixture of sludge and food waste. Overall process efficiency was not inhibited by FW augmentation. The bacterial community were clustered differently in the 5% FWS treatment than in the control and 1% FWS. Protein-degrading bacteria (Porphyromonadacea, Family XI, and Family XII) were commonly found in the 5% FWS treatment. Their proportions positively correlated with numbers of other bacteria and dominant methanogens (Methanosaeta and Methanospirillum), showing their important role in FWS digestion. FWS caused a shift of bacteria community, but an increase in archaeal concentration. Therefore, sudden addition of an appropriate amount of FW to existing digesters did not provoke process failure. This result contributes an ecologically-benign method to process FW.
논문정보
- Research article
- 2022년 10월 (BRIC 등록일 2022-11-08)
- 국내 연구진
- 생명과학 > 생물공학
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