Performance of Alternating-Current-Enhanced Anaerobic Membrane Bioreactor: Membrane Fouling, Wastewater Treatment, and CH4 Production

2021 ◽  
Author(s):  
Yue Yang ◽  
Keyi Zhang ◽  
Sen Qiao ◽  
Jiti Zhou ◽  
Xie Quan
Keyword(s):  
Wastewater Treatment ◽  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Alternating Current ◽  
Anaerobic Membrane Bioreactor ◽  
Ch4 Production

scholarly journals UV and bacteriophages as a chemical-free approach for cleaning membranes from anaerobic bioreactors

2020 ◽  
Author(s):  
Giantommaso Scarascia ◽  
Luca Fortunato ◽  
Yevhen Myshkevych ◽  
Hong Cheng ◽  
TorOve Leiknes ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Membrane Fouling ◽  
Membrane Filtration ◽  
Membrane Bioreactor ◽  
Combined Treatment ◽  
Chemical Cleaning ◽  
High Quality ◽  
Anaerobic Membrane Bioreactor ◽  
Membrane Biofouling ◽  
Uv C

ABSTRACTAnaerobic membrane bioreactor (AnMBR) for wastewater treatment has attracted much interest due to its efficacy in providing high quality effluent with minimal energy costs. However, membrane biofouling represents the main bottleneck for AnMBR because it diminishes flux and necessitates frequent replacement of membranes. In this study, we assessed the feasibility of combining bacteriophages and UV-C irradiation to provide a chemical-free approach to remove biofoulants on the membrane. The combination of bacteriophage and UV-C resulted in better log cells removal and twice higher extracellular polymeric substance (EPS) concentration reduction in mature biofoulants compared to UV-C. A reduction in the relative abundance of Acinetobacter spp. and selected gram-positive bacteria associated with the membrane biofilm was also achieved by the new cleaning approach. Microscopic analysis further revealed the formation of cavities in the biofilm due to bacteriophages and UV-C irradiation, which would be beneficial to maintain water flux through the membrane. When the combined treatment was further compared with the common chemical cleaning procedure, a similar reduction on the cell numbers was observed (1.4 log). However, combined treatment was less effective in removing EPS compared with chemical cleaning. These results suggest that the combination of UV-C and bacteriophage have an additive effect in biofouling reduction, representing a potential chemical-free method to remove reversible biofoulants on membrane fitted in an anaerobic membrane bioreactor.SIGNIFICANCEAnaerobic membrane bioreactors can achieve high quality effluent with a reduced energy consumption. However, biofouling represents the main bottleneck for membrane filtration efficiency. Biofouling is commonly reduced through chemical treatment. These agents are often detrimental for the environment and health safety due to the formation of toxic byproducts. Therefore, we present a new approach, based on the additive antifouling action of bacteriophages infection and UV-C irradiation, to reduce anaerobic membrane biofouling. This new strategy could potentially delay the occurrence of membrane fouling by removing the reversible fouling layers on membranes, in turn reducing the frequencies and amount of chemicals needed throughout the course of wastewater treatment.

Effect of ultrafiltration membrane material on fouling dynamics in a submerged anaerobic membrane bioreactor treating domestic wastewater

2019 ◽  
Vol 5 (6) ◽  
pp. 1145-1156 ◽  
Author(s):  
Amit Dan Grossman ◽  
Yang Yang ◽  
Uri Yogev ◽  
Daniela Calero Camarena ◽  
Gideon Oron ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Domestic Wastewater ◽  
Membrane Bioreactors ◽  
Ultrafiltration Membrane ◽  
Membrane Material ◽  
Anaerobic Membrane Bioreactor ◽  
Anaerobic Membrane Bioreactors

One of the main challenges in the realization of anaerobic membrane bioreactors (AnMBRs) for wastewater treatment is reducing membrane fouling.

Spectroscopic sensing of membrane fouling potential in a long-term running anaerobic membrane bioreactor

2021 ◽  
pp. 130799
Author(s):  
Jinlan Yu ◽  
Kang Xiao ◽  
Hao Xu ◽  
Ting Qi ◽  
Yitong Li ◽  
...  
Keyword(s):  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Anaerobic Membrane Bioreactor

scholarly journals Membrane Fouling Characteristics of a Side-Stream Tubular Anaerobic Membrane Bioreactor (AnMBR) Treating Domestic Wastewater

Processes ◽  
2018 ◽  
Vol 6 (5) ◽  
pp. 50 ◽  
Author(s):  
Nsanzumukiza Martin Vincent ◽  
Juan Tong ◽  
Dawei Yu ◽  
Junya Zhang ◽  
Yuansong Wei
Keyword(s):  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Domestic Wastewater ◽  
Anaerobic Membrane Bioreactor ◽  
Side Stream ◽  
Fouling Characteristics

scholarly journals Influence of Material on Membrane Fouling and Cleaning Results of Mustard Tuber Wastewater Treatment by Membrane Bioreactor

2014 ◽  
Vol 26 (11) ◽  
pp. 3246-3248
Author(s):  
Hongxiang Chai ◽  
Luwei Guo ◽  
Yinghua Wei ◽  
Jun Du ◽  
Jian Zhou ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Membrane Fouling ◽  
Membrane Bioreactor
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