Metal Ions on the Membrane Bioreactor in the Slow Progress of Membrane Fouling Studies

2014 ◽  
Vol 926-930 ◽  
pp. 158-161
Author(s):  
Wan You Zhang ◽  
Sheng Chao Ji ◽  
Hai Feng Zhang ◽  
Xi Xin Zhang
Keyword(s):  
Metal Ions ◽  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Future Research ◽  
Widespread Application ◽  
Slow Progress ◽  
Flocculation Process

Membrane bioreactor (MBR) has developed rapidly in recent years; however, the membrane fouling problems are affecting its further widespread application. This paper discusses the role of metal ions in the mixture in the mechanism; also on the high-priced metal ions coexist in the mixture when the effects of biological flocculation process; finally, the direction of future research in this area are summarized.

Characteristics of membrane fouling in submerged membrane bioreactor under sub-critical flux operation

2008 ◽  
Vol 57 (4) ◽  
pp. 601-605 ◽  
Author(s):  
Y. C. Su ◽  
C. P. Huang ◽  
H. C. Lee ◽  
Jill R. Pan
Keyword(s):  
Shear Stress ◽  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Permeate Flux ◽  
Membrane Unit ◽  
Widespread Application ◽  
Critical Flux ◽  
Membrane Cleaning ◽  
Close Link ◽  
Novel Technologies

Recently, the membrane bioreactor (MBR) process has become one of the novel technologies to enhance the performance of biological treatment of wastewater. Membrane bioreactor process uses the membrane unit to replace a sediment tank, and this can greatly enhance treatment performance. However, membrane fouling in MBR restricts its widespread application because it leads to permeate flux decline, making more frequent membrane cleaning and replacement necessary, which then increases operating and maintenance costs. This study investigated the sludge characteristics in membrane fouling under sub-critical flux operation and also assessed the effect of shear stress on membrane fouling. Membrane fouling was slow under sub-critical flux operation. However, as filamentous microbes became dominant in the reactor, membrane fouling increased dramatically due to the increased viscosity and polysaccharides. A close link was found between membrane fouling and the amount of polysaccharides in soluble EPS. The predominant resistance was the cake resistance which could be minimized by increasing the shear stress. However, the resistance of colloids and solutes was not apparently reduced by increasing shear stress. Therefore, smaller particles such as macromolecules (e.g. polysaccharides) may play an important role in membrane fouling under sub-critical flux operation.

Role of zeolite in reducing membrane fouling in a hybrid membrane bioreactor system applied for wastewater treatment

2017 ◽  
Vol 98 ◽  
pp. 52-58 ◽  
Author(s):  
Hossein Shahbeig ◽  
Mohammad Reza Mehrnia ◽  
Hamid Reza Tashauoei ◽  
Maryam Rezaei
Keyword(s):  
Wastewater Treatment ◽  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Hybrid Membrane ◽  
Bioreactor System

Virus removal during sewage treatment by anaerobic membrane bioreactor (AnMBR): the role of membrane fouling

2022 ◽  
pp. 118055
Author(s):  
Jinfan Zhang ◽  
Baolei Wu ◽  
Jie Zhang ◽  
Xuanyu Zhai ◽  
Zhendong Liu ◽  
...  
Keyword(s):  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Sewage Treatment ◽  
Virus Removal ◽  
Anaerobic Membrane Bioreactor

Significant role of membrane fouling and microbial community on the performance of membrane bioreactor (MBR) system

2010 ◽  
Vol 17 (1-3) ◽  
pp. 90-98 ◽  
Author(s):  
Ramon Christian Eusebio ◽  
Yoon-Ho Cho ◽  
Mark Sibag ◽  
Hyoung-Gun Kim ◽  
Tai-Hak Chung ◽  
...  
Keyword(s):  
Microbial Community ◽  
Significant Role ◽  
Membrane Fouling ◽  
Membrane Bioreactor

scholarly journals Fouling Mitigation and Wastewater Treatment Enhancement through the Application of an Electro Moving Bed Membrane Bioreactor (eMB-MBR)

Membranes ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 116 ◽  
Author(s):  
Jessa Millanar-Marfa ◽  
Laura Borea ◽  
Mark de Luna ◽  
Florencio Ballesteros ◽  
Vincenzo Belgiorno ◽  
...  
Keyword(s):  
Control System ◽  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Ammonium Nitrogen ◽  
Biofilm Reactor ◽  
Major Drawback ◽  
Widespread Application ◽  
Moving Bed ◽  
Combined Application ◽  
Fouling Mitigation

High operational cost due to membrane fouling propensity remains a major drawback for the widespread application of membrane bioreactor (MBR) technology. As a result, studies on membrane fouling mitigation through the application of integrated processes have been widely explored. In this work, the combined application of electrochemical processes and moving bed biofilm reactor (MBBR) technology within an MBR at laboratory scale was performed by applying an intermittent voltage of 3 V/cm to a reactor filled with 30% carriers. The treatment efficiency of the electro moving bed membrane bioreactor (eMB-MBR) technology in terms of ammonium nitrogen (NH4-N) and orthophosphate (PO4-P) removal significantly improved from 49.8% and 76.7% in the moving bed membrane bioreactor (MB-MBR) control system to 55% and 98.7% in the eMB-MBR, respectively. Additionally, concentrations of known fouling precursors and membrane fouling rate were noticeably lower in the eMB-MBR system as compared to the control system. Hence, this study successfully demonstrated an innovative and effective technology (i.e., eMB-MBR) to improve MBR performance in terms of both conventional contaminant removal and fouling mitigation.

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