Attached-growth configuration outperforms continuously stirred tank anaerobic membrane bioreactors in alleviating membrane biofouling

Hong Cheng; Jianqiang Zhou; Pei-Ying Hong

doi:10.1016/j.envres.2021.111272

Attached-growth configuration outperforms continuously stirred tank anaerobic membrane bioreactors in alleviating membrane biofouling

Hong Cheng, Jianqiang Zhou, Pei-Ying Hong

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Biofouling impedes the performance of anaerobic membrane bioreactors (AnMBR). Two reactors, one as an up-flow attachment-growth AnMBR (UA-AnMBR) configuration, and the other, as a continuously stirred AnMBR (CS-AnMBR) were evaluated for differences in membrane fouling rate. TMP increment in UA-AnMBR was slower than CS-AnMBR, although both reactors had similar COD removal efficiency (ca. > 96%). Slower fouling rate for UA-AnMBR was related to lower total and viable cells, and thereby microbial activity compared to that in CS-AnMBR. Acinetobacter and Methanobacterium that played keystone roles in anaerobic biofilm formation were not consistently prevalent on the membranes connected to UA-AnMBR. This is in contrast to both Acinetobacter and Methanobacterium consistently prevalent on the membranes connected to CS-AnMBR. The findings suggest that UA-AnMBR can alleviate membrane biofouling through changes in microbial activity and profile dynamics, and would be a suitable reactor configuration to adopt to achieve an efficient AnMBR for municipal wastewater treatment.

Original language	English (US)
Pages (from-to)	111272
Journal	Environmental Research
Volume	199
DOIs	https://doi.org/10.1016/j.envres.2021.111272
State	Published - May 12 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-06-11
Acknowledged KAUST grant number(s): REI/1/4178-03-01
Acknowledgements: This study was supported by KAUST Translation Fund REI/1/4223-01-01 and Center of Excellence for NEOM Research flagship projects REI/1/4178-03-01 awarded to P.Y.-H.

ASJC Scopus subject areas

Biochemistry
General Environmental Science

Access to Document

10.1016/j.envres.2021.111272

https://repository.kaust.edu.sa/bitstream/10754/669513/1/1-s2.0-S0013935121005661-main.pdf

Cite this

@article{b4b369e4b95141f1890091d0591e8581,

title = "Attached-growth configuration outperforms continuously stirred tank anaerobic membrane bioreactors in alleviating membrane biofouling",

abstract = "Biofouling impedes the performance of anaerobic membrane bioreactors (AnMBR). Two reactors, one as an up-flow attachment-growth AnMBR (UA-AnMBR) configuration, and the other, as a continuously stirred AnMBR (CS-AnMBR) were evaluated for differences in membrane fouling rate. TMP increment in UA-AnMBR was slower than CS-AnMBR, although both reactors had similar COD removal efficiency (ca. > 96%). Slower fouling rate for UA-AnMBR was related to lower total and viable cells, and thereby microbial activity compared to that in CS-AnMBR. Acinetobacter and Methanobacterium that played keystone roles in anaerobic biofilm formation were not consistently prevalent on the membranes connected to UA-AnMBR. This is in contrast to both Acinetobacter and Methanobacterium consistently prevalent on the membranes connected to CS-AnMBR. The findings suggest that UA-AnMBR can alleviate membrane biofouling through changes in microbial activity and profile dynamics, and would be a suitable reactor configuration to adopt to achieve an efficient AnMBR for municipal wastewater treatment.",

author = "Hong Cheng and Jianqiang Zhou and Pei-Ying Hong",

note = "KAUST Repository Item: Exported on 2021-06-11 Acknowledged KAUST grant number(s): REI/1/4178-03-01 Acknowledgements: This study was supported by KAUST Translation Fund REI/1/4223-01-01 and Center of Excellence for NEOM Research flagship projects REI/1/4178-03-01 awarded to P.Y.-H.",

year = "2021",

month = may,

day = "12",

doi = "10.1016/j.envres.2021.111272",

language = "English (US)",

volume = "199",

pages = "111272",

journal = "Environmental Research",

issn = "0013-9351",

publisher = "Academic Press Inc.",

}

TY - JOUR

T1 - Attached-growth configuration outperforms continuously stirred tank anaerobic membrane bioreactors in alleviating membrane biofouling

AU - Cheng, Hong

AU - Zhou, Jianqiang

AU - Hong, Pei-Ying

N1 - KAUST Repository Item: Exported on 2021-06-11 Acknowledged KAUST grant number(s): REI/1/4178-03-01 Acknowledgements: This study was supported by KAUST Translation Fund REI/1/4223-01-01 and Center of Excellence for NEOM Research flagship projects REI/1/4178-03-01 awarded to P.Y.-H.

PY - 2021/5/12

Y1 - 2021/5/12

N2 - Biofouling impedes the performance of anaerobic membrane bioreactors (AnMBR). Two reactors, one as an up-flow attachment-growth AnMBR (UA-AnMBR) configuration, and the other, as a continuously stirred AnMBR (CS-AnMBR) were evaluated for differences in membrane fouling rate. TMP increment in UA-AnMBR was slower than CS-AnMBR, although both reactors had similar COD removal efficiency (ca. > 96%). Slower fouling rate for UA-AnMBR was related to lower total and viable cells, and thereby microbial activity compared to that in CS-AnMBR. Acinetobacter and Methanobacterium that played keystone roles in anaerobic biofilm formation were not consistently prevalent on the membranes connected to UA-AnMBR. This is in contrast to both Acinetobacter and Methanobacterium consistently prevalent on the membranes connected to CS-AnMBR. The findings suggest that UA-AnMBR can alleviate membrane biofouling through changes in microbial activity and profile dynamics, and would be a suitable reactor configuration to adopt to achieve an efficient AnMBR for municipal wastewater treatment.

AB - Biofouling impedes the performance of anaerobic membrane bioreactors (AnMBR). Two reactors, one as an up-flow attachment-growth AnMBR (UA-AnMBR) configuration, and the other, as a continuously stirred AnMBR (CS-AnMBR) were evaluated for differences in membrane fouling rate. TMP increment in UA-AnMBR was slower than CS-AnMBR, although both reactors had similar COD removal efficiency (ca. > 96%). Slower fouling rate for UA-AnMBR was related to lower total and viable cells, and thereby microbial activity compared to that in CS-AnMBR. Acinetobacter and Methanobacterium that played keystone roles in anaerobic biofilm formation were not consistently prevalent on the membranes connected to UA-AnMBR. This is in contrast to both Acinetobacter and Methanobacterium consistently prevalent on the membranes connected to CS-AnMBR. The findings suggest that UA-AnMBR can alleviate membrane biofouling through changes in microbial activity and profile dynamics, and would be a suitable reactor configuration to adopt to achieve an efficient AnMBR for municipal wastewater treatment.

UR - http://hdl.handle.net/10754/669513

UR - https://linkinghub.elsevier.com/retrieve/pii/S0013935121005661

UR - http://www.scopus.com/inward/record.url?scp=85106320942&partnerID=8YFLogxK

U2 - 10.1016/j.envres.2021.111272

DO - 10.1016/j.envres.2021.111272

M3 - Article

C2 - 33989627

SN - 0013-9351

VL - 199

SP - 111272

JO - Environmental Research

JF - Environmental Research

ER -

Attached-growth configuration outperforms continuously stirred tank anaerobic membrane bioreactors in alleviating membrane biofouling

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this