Process stability and comparative rDNA/rRNA community analyses in an anaerobic membrane bioreactor with silicon carbide ceramic membrane applications
- Process stability and comparative rDNA/rRNA community analyses in an anaerobic membrane bioreactor with silicon carbide ceramic membrane applications
- 이석헌; 조경진; 서규원; 신승구; 박찬혁
- Anaerobic ceramic membrane bioreactor; Silicon carbide membrane; Domestic wastewater; Food waste recycling wastewater; rDNA sequencing; rRNA sequencing
- Issue Date
- The Science of the total environment
- VOL 666, NO 20-164
- 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.
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