Process stability and comparative rDNA/rRNA community analyses in an anaerobic membrane bioreactor with silicon carbide ceramic membrane applications

Title
Process stability and comparative rDNA/rRNA community analyses in an anaerobic membrane bioreactor with silicon carbide ceramic membrane applications
Authors
이석헌조경진서규원신승구박찬혁
Keywords
Anaerobic ceramic membrane bioreactor; Silicon carbide membrane; Domestic wastewater; Food waste recycling wastewater; rDNA sequencing; rRNA sequencing
Issue Date
2019-05
Publisher
The Science of the total environment
Citation
VOL 666, NO 20-164
Abstract
This study evaluated the feasibility of using a silicon carbide (SiC) anaerobic ceramic membrane bioreactor (AnCMBR) to co-manage domestic wastewater (DWW) and food waste recycling wastewater (FRW). A pilot-scale SiC-AnCMBR was put into operation for 140  days under two different organic loading rates (OLRs): 5  kg  COD  m− 3  d− 1 (OLR 5) and 3  1 (OLR 3). The organic removal efficiency was 93.5  ±  3.7% over the operational period. Methane production increased significantly after sludge re-seeding at OLR 3. rDNA and rRNA microbial results showed that the active archaeal community was affected by sludge re-seeding, whereas the active bacterial community was not, indicating that a shift in the active archaeal community was responsible for the increased methane production. Our results thus suggest that SiC-AnCMBRs are a promising option for co-managing DWW and FRW.
URI
http://pubs.kist.re.kr/handle/201004/69867
ISSN
0048-9697
Appears in Collections:
KIST Publication > Article
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