PMID- 34973325
OWN - NLM
STAT- MEDLINE
DCOM- 20220216
LR  - 20220216
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 814
DP  - 2022 Mar 25
TI  - Investigation and evaluation of membrane fouling in a microbial fuel 
      cell-membrane bioreactor systems (MFC-MBR).
PG  - 152569
LID - S0048-9697(21)07647-6 [pii]
LID - 10.1016/j.scitotenv.2021.152569 [doi]
AB  - Two membrane bioreactors with and without adding an electric circuit (named as 
      MFC-MBR and C-MBR, respectively) were established to investigate the effects of 
      micro-electric field on membrane fouling. With the aeration rate of 1.5 L/min, 
      the synergistic effect of aeration and micro-electric field was the best in 
      reducing membrane fouling and COD in treatment of a simulated phenol wastewater. 
      Compared with C-MBR, the running time of MFC-MBR was extended for 16 days. 
      Scanning electron microscope (SEM) and energy-dispersive X-ray detector (SEM-EDX) 
      demonstrated that less foulants were attached to the membrane and the attachment 
      was loosend in MFC-MBR. The decreased absolute value of zeta potential indicated 
      repulsion among the negatively-charged sludge particles was reduced and 
      flocculation of the sludge was improved, which alleviated the membrane fouling. 
      The soluble microbial products (SMP) and loosely-bound extracellular polymeric 
      substances (LB-EPS) were also decreased in MFC-MBR. It was found that migration 
      and neutralization of the negatively-charged particles, and degradation of 
      microorganisms contributed to the alleviation of membrane fouling. Moreover, the 
      decreases of carbohydrates in LB-EPS led to higher protein/carbohydrates (PN/PS) 
      ratio, which was a key parameter for alleviating membrane fouling. Meanwhile, the 
      increase of tightly bound extracellular polymeric substances (TB-EPS) could also 
      slow down membrane fouling. Because TB-EPS can be used as a binder to strengthen 
      the flocculation of sludge particles.
CI  - Copyright (c) 2022 Elsevier B.V. All rights reserved.
FAU - Hou, Bin
AU  - Hou B
AD  - School of the Environment and Safety Engineering, North University of China, 
      Taiyuan 030051, China.
FAU - Liu, Xiaoyu
AU  - Liu X
AD  - School of the Environment and Safety Engineering, North University of China, 
      Taiyuan 030051, China.
FAU - Zhang, Rong
AU  - Zhang R
AD  - School of the Environment and Safety Engineering, North University of China, 
      Taiyuan 030051, China.
FAU - Li, Ying
AU  - Li Y
AD  - School of the Environment and Safety Engineering, North University of China, 
      Taiyuan 030051, China.
FAU - Liu, Pengxiao
AU  - Liu P
AD  - School of the Environment and Safety Engineering, North University of China, 
      Taiyuan 030051, China.
FAU - Lu, Jing
AU  - Lu J
AD  - School of the Environment and Safety Engineering, North University of China, 
      Taiyuan 030051, China. Electronic address: lujing19822@163.com.
LA  - eng
PT  - Journal Article
DEP - 20211230
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Membranes, Artificial)
RN  - 0 (Sewage)
SB  - IM
MH  - *Bioelectric Energy Sources
MH  - Bioreactors
MH  - Extracellular Polymeric Substance Matrix
MH  - Membranes, Artificial
MH  - Sewage
OTO - NOTNLM
OT  - Aeration rate
OT  - Membrane fouling
OT  - Micro-electric field
OT  - Microbial fuel cell
OT  - Sludge parameters
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2022/01/02 06:00
MHDA- 2022/02/17 06:00
CRDT- 2022/01/01 20:09
PHST- 2021/10/06 00:00 [received]
PHST- 2021/12/02 00:00 [revised]
PHST- 2021/12/16 00:00 [accepted]
PHST- 2022/01/02 06:00 [pubmed]
PHST- 2022/02/17 06:00 [medline]
PHST- 2022/01/01 20:09 [entrez]
AID - S0048-9697(21)07647-6 [pii]
AID - 10.1016/j.scitotenv.2021.152569 [doi]
PST - ppublish
SO  - Sci Total Environ. 2022 Mar 25;814:152569. doi: 10.1016/j.scitotenv.2021.152569. 
      Epub 2021 Dec 30.