Comparison of fouling characteristics in different pore-sized submerged ceramic membrane bioreactors

2010 ◽  
Vol 44 (20) ◽  
pp. 5907-5918 ◽  
Author(s):  
Le Jin ◽  
Say Leong Ong ◽  
How Yong Ng
Keyword(s):  
Ceramic Membrane ◽  
Membrane Bioreactors ◽  
Fouling Characteristics

scholarly journals Correction: Membrane fouling characteristics of membrane bioreactors (MBRs) under salinity shock: extracellular polymeric substances (EPSs) and the optimization of operating parameters

2021 ◽  
Author(s):  
Ling Luo ◽  
Hui Zhong ◽  
Ye Yuan ◽  
Wenwang Zhou ◽  
Changming Zhong
Keyword(s):  
Membrane Fouling ◽  
Extracellular Polymeric Substances ◽  
Membrane Bioreactors ◽  
Operating Parameters ◽  
Salinity Shock ◽  
Fouling Characteristics

Correction for ‘Membrane fouling characteristics of membrane bioreactors (MBRs) under salinity shock: extracellular polymeric substances (EPSs) and the optimization of operating parameters’ by Changming Zhong et al., Environ. Sci.: Water Res. Technol., 2021, DOI: .

Effect of activated sludge properties and membrane operation conditions on fouling characteristics in membrane bioreactors

Chemosphere ◽  
2006 ◽  
Vol 63 (10) ◽  
pp. 1699-1708 ◽  
Author(s):  
Hyeok Choi ◽  
Kai Zhang ◽  
Dionysios D. Dionysiou ◽  
Daniel B. Oerther ◽  
George A. Sorial
Keyword(s):  
Activated Sludge ◽  
Membrane Bioreactors ◽  
Operation Conditions ◽  
Sludge Properties ◽  
Fouling Characteristics

Applications of Ceramic Membrane Bioreactors in Water Treatment

2020 ◽  
pp. 141-176
Author(s):  
Ismail Koyuncu ◽  
Reyhan Sengur-Tasdemir ◽  
Mustafa Evren Ersahin ◽  
Hale Ozgun ◽  
Borte Kose-Mutlu ◽  
...  
Keyword(s):  
Water Treatment ◽  
Ceramic Membrane ◽  
Membrane Bioreactors

Performance and fouling characteristics of different pore-sized submerged ceramic membrane bioreactors (SCMBR)

2009 ◽  
Vol 59 (11) ◽  
pp. 2213-2218 ◽  
Author(s):  
Le Jin ◽  
How Yong Ng ◽  
Say Leong Ong
Keyword(s):  
Pore Size ◽  
Ceramic Membrane ◽  
Membrane Separation ◽  
Rejection Rate ◽  
Ceramic Membranes ◽  
Ammonia Nitrogen ◽  
Membrane Bioreactors ◽  
Membrane Pore ◽  
Toc Removal ◽  
Membrane Pore Size

The membrane bioreactor (MBR), a combination of activated sludge process and the membrane separation system, has been widely used in wastewater treatment. However, 90% of MBR reported were employing polymeric membranes. The usage of ceramic membranes in MBR is quite rare. Four submerged ceramic membrane bioreactors (SCMBRs) with different membrane pore size were used in this study to treat sewage. The results showed that the desirable carbonaceous removal of 95% and ammonia nitrogen removal of 98% were obtained for all the SCMBRs. It was also showed that the ceramic membranes were able to reject some portions of the protein and carbohydrate, whereby the carbohydrate rejection rate was much higher than that of protein. Membrane pore size did not significantly affect the COD and TOC removal efficiencies, the composition of EPS and SMP or the membrane rejection rate, although slight differences were observed. The SCMBR with the biggest membrane pore size fouled fastest, and membrane pore size was a main contributor for the different fouling potential observed.

Membrane fouling characteristics of membrane bioreactor (MBR) under salinity shock：Extracellular Polymeric Substances (EPS) and optimization of operating parameters

2021 ◽  
Author(s):  
Ling Luo ◽  
Hui Zhong ◽  
Ye Yuan ◽  
Wenwang Zhou ◽  
Changming Zhong
Keyword(s):  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Membrane Bioreactors ◽  
Operating Parameters ◽  
Salinity Shock ◽  
Extracellular Polymer ◽  
Composition Changes ◽  
Fouling Characteristics

This study aims to analyze the composition changes of extracellular polymer (EPS) in membrane bioreactors (MBR) under different salinity shock and their effects on membrane fouling, as well as the...

Approaches to membrane fouling control in anaerobic membrane bioreactors

2000 ◽  
Vol 41 (10-11) ◽  
pp. 363-371 ◽  
Author(s):  
K-H. Choo ◽  
I-J. Kang ◽  
S-H. Yoon ◽  
H. Park ◽  
J-H. Kim ◽  
...  
Keyword(s):  
Membrane Fouling ◽  
Ceramic Membrane ◽  
Substantial Improvement ◽  
Membrane Bioreactors ◽  
Polymer Chains ◽  
Polymeric Membrane ◽  
Hydrophilic Modification ◽  
Grafted Polymer ◽  
Fouling Control ◽  
Anaerobic Membrane Bioreactors

Various fouling control methods were investigated for polymeric and ceramic microfiltration membranes in the anaerobic membrane bioreactors where inorganic precipitates and/or fine colloids have been recently known as the most significant foulants: (i) Substantial improvement of flux was achieved by backfeeding of acidic wastewater through the membrane module. The backfeeding mode formed an acidic environment around the membrane pores and thus suppressed struvite formation. (ii) Struvite precipitation was also mitigated when an additional combined dialysis/zeolite unit was attached to the bioreactor. With this combined unit the flux improvement for the ceramic membrane, where struvite had a severer fouling effect, was achieved more significantly than that for the polymeric membrane. (iii) To control the deposition of organics and fine colloids onto the polymeric membrane, powdered activated carbon (PAC) was added into the bioreactor, which gave rise to the reduction of specific cake resistances of biosolids through the sorption and/or coagulation of dissolved and colloidal matter. (iv) The hydrophilic modification of polypropylene (PP) membranes by graft polymerization reduced membrane fouling. Its effectiveness was most substantial at 70% of the degree of grafting, indicating that there was an optimal degree of grafting. This is possibly due to the steric hindrance of grafted polymer chains and the increase in the hydrophilicity of the grafted PP membrane.

Fouling characteristics of membrane filtration in membrane bioreactors

2000 ◽  
Vol 2000 (122) ◽  
pp. 10-13 ◽  
Author(s):  
Hugh Thomas ◽  
Simon Judd ◽  
John Murrer
Keyword(s):  
Membrane Filtration ◽  
Membrane Bioreactors ◽  
Fouling Characteristics
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