Highly Efficient Reclamation of Meat-Processing Wastewater by Aerobic Hybrid Membrane Bioreactor-Reverse Osmosis Simulated System: A Comprehensive Economic and Environmental Study

2020 ◽  
Vol 8 (37) ◽  
pp. 14207-14216
Author(s):  
Hajar Abyar ◽  
Mohsen Nowrouzi
Keyword(s):  
Reverse Osmosis ◽  
Membrane Bioreactor ◽  
Hybrid Membrane ◽  
Environmental Study ◽  
Meat Processing ◽  
Highly Efficient ◽  
System A ◽  
Simulated System

Study on Nitrogen Removal Efficiency of Hybrid Anoxic/Aerobic Membrane Bioreactor

2012 ◽  
Vol 178-181 ◽  
pp. 516-519
Author(s):  
Bai Ge Su ◽  
Zhi Qiang Liu ◽  
Xiao Jing Li ◽  
Xue Xu ◽  
Lei Gao
Keyword(s):  
Removal Efficiency ◽  
Nitrogen Removal ◽  
Membrane Bioreactor ◽  
Hybrid Membrane ◽  
Filling Ratio ◽  
Experimental Results ◽  
Aeration Intensity ◽  
System A ◽  
Bioreactor System ◽  
Main Influence

Based on fillers theory and traditional A/O-MBR theory, anoxic/aerobic hybrid membrane bioreactor system (A/O-HMBR for short) was modified by adding suspended biological fillers in one of the aerobic tanks of the traditional A/O-MBR, in which the filling ratio of fillers was 8%. The thesis mainly studies the nitrogen removal effect in the A/O-HMBR system when the main influence parameters, such as influent C/N(5,7,10), aeration intensity(15m3/h,20m3/h,25m3/h) and HRT(5h,8h,11h), were changed.The experimental results show that when HRT was 8h, C/N was 7, and aeration intensity was 20m3/h, TN removal effect was best.

Reclaiming Municipal and Industrial Wastewater Using Combined Membrane Bioreactor and Reverse Osmosis

2009 ◽  
Vol 3 (1) ◽  
pp. 1-15
Author(s):  
Glen T. Daigger ◽  
Andrew Hodgkinson ◽  
David Evans
Keyword(s):  
Reverse Osmosis ◽  
Industrial Wastewater ◽  
Membrane Bioreactor

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

Hybrid membrane bioreactor technology for small water treatment utilities: Process evaluation and primordial considerations

2009 ◽  
Vol 344 (1-2) ◽  
pp. 39-54 ◽  
Author(s):  
Varadarajan Ravindran ◽  
Hsun-Hao Tsai ◽  
Mark D. Williams ◽  
Massoud Pirbazari
Keyword(s):  
Water Treatment ◽  
Process Evaluation ◽  
Membrane Bioreactor ◽  
Hybrid Membrane ◽  
Small Water

scholarly journals Hybrid membrane bioreactor for water recycling and phosphorus recovery

2006 ◽  
Vol 53 (7) ◽  
pp. 17-24 ◽  
Author(s):  
Y. Watanabe ◽  
K. Kimura
Keyword(s):  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Municipal Wastewater ◽  
Community Analysis ◽  
Hybrid Membrane ◽  
Phosphorus Recovery ◽  
Microbial Community Analysis ◽  
Low Viscosity ◽  
Ph Range ◽  
Phosphoric Acids

This paper deals with the performance of hybrid membrane bioreactor (MBR) combining the precoagulation/sedimentation and membrane bioreactor. The hybrid MBR not only produces the treated water with excellent permeate quality but also shows much lower membrane fouling than the conventional MBR. It may come from its extremely low F/M ratio to maintain the low viscosity even in the high MLSS concentration range of about 20,000 mg/L. Some results of microbial community analysis in MBRs was conducted to demonstrate the other reason for its lower membrane fouling. Hybrid MBR has a high potential to be used for the recycling use of the municipal wastewater. Coagulated sludge produced in the hybrid MBR is a promising phosphorus resource. This paper also contains a recent progress of phosphorus recovery technology, which uses a new phosphoric acids absorbent, i.e. the hexagonal mesostructured zirconium sulfate (ZS). The ZS has the extremely high adsorption capacity of phosphoric acids through anion exchange. The adsorbed phosphoric acids are released from the ZS in a high pH range of about 13.

scholarly journals Recycling of Reverse Osmosis Concentrates to the Membrane Bioreactor in the MBR-RO Process for Water Reuse: effect on mbr performances

2017 ◽  
Vol 30 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Thi Thu Nga Vu ◽  
Manon Montaner ◽  
Christelle Guigui
Keyword(s):  
Organic Matter ◽  
Reverse Osmosis ◽  
Membrane Fouling ◽  
Water Reuse ◽  
High Performance ◽  
Membrane Bioreactor ◽  
Membrane System ◽  
Size Exclusion ◽  
Ro Concentrate ◽  
The Impact

Wastewater effluents can be treated by an integrated membrane system combining membrane bioreactor (MBR) and reverse osmosis (RO) for effective removal of micropollutants in the field of high-quality water reuse. However, discharging the RO concentrate waste stream directly into the natural environment could lead to serious problems due to the toxic components contained in the concentrates (micropollutants, salts, organic matter). A possible solution could be the recirculation of RO concentrate waste to the MBR. However, such an operation should be studied in detail since the recirculation of non-biodegradable organic matter or high concentrations of salts and micropollutants could directly or indirectly contribute to MBR membrane fouling and modification of the biodegradation activity. In this context, the work reported here focused on the recirculation of such concentrates in an MBR, paying specific attention to MBR membrane fouling. Lab-scale experiments were performed on a continuous MBR-RO treatment line with RO concentrate recirculation. The main goal was to determine the recovery of the RO unit and of the global process that maintained good process performance in terms of biodegradation and MBR fouling. The results demonstrate that the impact of the toxic flow on activated sludge depends on the recovery of the RO step but the same trends were observed regardless of the organic matter and salt contents of the concentrates: the concentration of proteins increased slightly. Size-exclusion high performance liquid chromatography (HPLC-SEC) was employed to study the effects of RO concentrate on the production of protein-like soluble microbial products (SMPs) and demonstrated a significant peak of protein-like substances corresponding to 10-100 kDa and 100-1 000 kDa molecules in the supernatant. Thus a significant increase in the propensity for sludge fouling was observed, which could be attributed to the increased quantity of protein-like substances. Finally, the effect of the concentrate on sludge activity was studied and no significant effect was observed on biodegradation, indicating that the return of the concentrate to the MBR could be a good alternative.

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