Effects of biofilm formation on membrane performance in submerged membrane bioreactors

Biofouling ◽  
2011 ◽  
Vol 27 (5) ◽  
pp. 477-485 ◽  
Author(s):  
S. Mafirad ◽  
M. R. Mehrnia ◽  
H. Azami ◽  
M. H. Sarrafzadeh
Keyword(s):  
Biofilm Formation ◽  
Membrane Bioreactors ◽  
Membrane Performance

Control of membrane-attached biofilms in extractive membrane bioreactors

2000 ◽  
Vol 41 (4-5) ◽  
pp. 227-234 ◽  
Author(s):  
C. Nicolella ◽  
I.C. Garcia Appendini ◽  
S-F. Zhang ◽  
A.G. Livingston
Keyword(s):  
Biofilm Formation ◽  
Liquid Membrane ◽  
Organic Substrate ◽  
Membrane Bioreactors ◽  
Membrane Module ◽  
High Shear ◽  
Shear Forces ◽  
Over Time

Control of Membrane Attached Biofilm (MAB) formation and accumulation is a key aspect in the operation of Extractive Membrane Bioreactors (EMBs). In this work, MAB control was attempted in a novel EMB configuration which presents two innovative aspects: the presence of a biphasic biomedium and a contained liquid membrane module. This reactor, where the benefits of high shear forces and the use of a biphasic biomedium are effectively combined, was operated without any biofilm formation or reduction in organic substrate flux over time.

Proposing a method for online permeability monitoring in membrane bioreactors

2009 ◽  
Vol 60 (2) ◽  
pp. 497-506 ◽  
Author(s):  
A. Joss ◽  
M. Böhler ◽  
D. Wedi ◽  
H. Siegrist
Keyword(s):  
Municipal Wastewater ◽  
Theoretical Background ◽  
Membrane Bioreactors ◽  
Transmembrane Pressure ◽  
Municipal Wastewater Treatment ◽  
Data Set ◽  
Efficient Operation ◽  
Membrane Performance ◽  
A Value ◽  
Programmable Logical Controller

Reliable and efficient operation of membrane bioreactors (MBR) for centralized municipal wastewater treatment strongly depends on a good monitoring of the membrane permeability, a value often used to quantify the transmissibility (i.e. the inverse of the flow resistance) of the membrane. By directly or indirectly evaluating this parameter the operator normally plans on the necessity and effectivity of maintenance activities. To allow the operator monitoring the membrane performance closely, the present paper proposes a method for online permeability based on the measurements of permeate flow, transmembrane pressure and water temperature. The theoretical background of the method is discussed and a data set of 250 days of continuous pilot operation of a municipal MBR equipped with three different standard membrane modules is used for testing. The method is numerically simple enough to allow being implemented on any programmable logical controller.

scholarly journals Biomimetic aquaporin membranes for osmotic membrane bioreactors: Membrane performance and contaminant removal

2018 ◽  
Vol 249 ◽  
pp. 62-68 ◽  
Author(s):  
Wenhai Luo ◽  
Ming Xie ◽  
Xiaoye Song ◽  
Wenshan Guo ◽  
Hao H. Ngo ◽  
...  
Keyword(s):  
Membrane Bioreactors ◽  
Contaminant Removal ◽  
Membrane Performance

Membrane performance enhancer evaluations on pilot- and full-scale membrane bioreactors

2006 ◽  
Vol 20 (1) ◽  
pp. 43-47 ◽  
Author(s):  
John H. Collins ◽  
Seong-Hoon Yoon ◽  
Deepak Musale ◽  
Jian Feng Kong ◽  
Jeroen Koppes ◽  
...  
Keyword(s):  
Membrane Bioreactors ◽  
Full Scale ◽  
Membrane Performance

FIVE YEAR EXPERIENCE WITH MEMBRANE PERFORMANCE ENHANCERS FOR MEMBRANE BIOREACTORS : FROM MECHANISTIC STUDIES TO FULL-SCALE IMPLEMENTATION

2007 ◽  
Vol 2007 (15) ◽  
pp. 3431-3440
Author(s):  
Seong-Hoon Yoon ◽  
John Collins ◽  
Bhasker Dav è ◽  
Jeroen Koppes ◽  
Kazuhisa Nishimori ◽  
...  
Keyword(s):  
Membrane Bioreactors ◽  
Full Scale ◽  
Mechanistic Studies ◽  
Membrane Performance ◽  
Performance Enhancers
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