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

New process for alleviation of membrane fouling of modified hybrid MBR system for advanced domestic wastewater treatment

2008 ◽  
Vol 58 (10) ◽  
pp. 2059-2066 ◽  
Author(s):  
Liu Shuo ◽  
Wang Baozhen ◽  
Han Hongjun ◽  
Liu Yanping
Keyword(s):  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Domestic Wastewater ◽  
Hybrid Membrane ◽  
Recycling Rate ◽  
Flat Panel ◽  
New Process ◽  
Sludge Recycling ◽  
Bioreactor System ◽  
Aerobic Zone

A pilot-scale hybrid membrane bioreactor using a submerged flat panel membrane was designed and applied for advanced treatment of domestic wastewater. The new process adapted to the hybrid membrane bioreactor exhibits substantial decrease in membrane fouling and much easier cleaning. In this study, the new process configurations including the addition of anoxic/anaerobic zones, the package of synthetic fibrous fabric carrier for biofilm attached growth, activated sludge recycling and modified dosage of polished diatomite with high activity and multi-functions were investigated to select the optimal operational parameters for the hybrid membrane bioreactor system. The carrier package in the aerobic zone contributed 3.65 g/L (maximum) of fixed biomass to the system, thus reducing the suspended biomass, and has decreased the membrane cleaning cycle remarkably. The operation performance at the sludge recycle rate 0, 100%, 200% and 300% showed that, the trans-membrane pressure of flat panel membrane declined sharply with the increase of sludge recycling rate within a certain range, and 200% was decided to be optimal for in the membrane bioreactor system. EPS concentration in each sludge recycling rate was 135 mg/L, 92 mg/L, 68 mg/L and 55 mg/L respectively. The addition of anoxic and anaerobic zones degraded some large molecular organic compounds, which facilitated the biodegradation and removal of organic substances in aerobic zone. The modified dosage of polished diatomite has played a major important role for both preventing of membrane from fouling and its much easier cleaning when it formed.

scholarly journals Membrane Fouling and Cleaning by Hybrid Membrane Bioreactor Treating Mustard Tuber Wastewater

2014 ◽  
Vol 26 (11) ◽  
pp. 3249-3252
Author(s):  
Hongxiang Chai ◽  
Qiang Jiang ◽  
Yinghua Wei ◽  
Jun Du ◽  
Jian Zhou ◽  
...  
Keyword(s):  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Hybrid Membrane

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.

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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