bioreactor membrane Articles
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Effect of low dosages of powdered activated carbon on membrane bioreactor performance
Previous research has demonstrated that powdered activated carbon (PAC), when applied at very low dosages and long SRTs, reduces membrane fouling in membrane bioreactors (MBRs). This effect was related to the formation of stronger sludge flocs, which are less sensitive to shear. In this contribution the long-term effect of PAC addition was studied by running two parallel MBRs on sewage. To one of ...
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Influence of membrane properties on physically reversible and irreversible fouling in membrane bioreactors
This study aimed to examine the impact of membrane properties on membrane fouling in membrane bioreactor (MBR). Membrane fouling was divided into two categories: physically reversible and irreversible fouling. Membrane properties related to each type of membrane fouling were investigated separately. Five microfiltration (MF) and one ultrafiltration (UF) membranes with different properties (pore ...
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[PHILOS] Membrane Bioreactor Configuration
?? Discover "Membrane Bioreactor Configuration" Explore the membrane industry with PHILOS – your guide to innovation and insights. Follow us today to ensure you don't miss out on the latest updates in the membrane industry (MBR, UF, Humidification, Separation Technology, and more!). Do you want to learn more about membrane technology? Follow us for more at: -PHILOS Website -PHILOS ...
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Meliadine mine - Case study
We have been approached by the Company H2O Innovation Inc. to supply bugs for the start up of a membrane bioreactor (MBR). Meliadine mine is located in Nunavut in the remote northern part of ...
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Comparative study on performance of yeast and bacterial membrane bioreactors for high salinity wastewater treatment
Two laboratory-scale membrane bioreactor systems were investigated to treat high saline wastewater containing 1,000 mg/L COD and 32 g/L NaCl, namely: the yeast membrane bioreactor (YMBR) and the bacterial membrane bioreactor (BMBR). COD removal of both processes was above 90% at a hydraulic retention time (HRT) of 5 hours (volumetric loading of 5 kg COD/m³.d), sludge retention time (SRT) of 50 ...
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What is the Membrane Bioreactor Tank?
MBR membrane bioreactor is a new type of water treatment technology that combines membrane separation technology and activated sludge biotechnology. The MBR membrane module is placed in the membrane tank to replace the role of the secondary sedimentation tank in traditional water treatment. The treatment method is more efficient, and the effluent quality is better. In the operation of the entire ...
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Membrane Modules- Expansion of a Containerized Membrane Bioreactor - Case Study
EFA Hochbau GmbH Expansion of a containerized membrane bioreactor for the wastewater treatment of the military camp in Kunduz / Afghanistan. An A3 Water Solutions’ GmbH containerized membrane plant has been in operation at the military camp in Kunduz / Afghanistan for the past years. Due to a steady increase of camp personnel, a plant capacity expansion of the existing plant from 450 to ...
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Feasibility of bioflocculation in a high-loaded membrane bioreactor for improved energy recovery from sewage
The feasibility of a high-loaded membrane bioreactor to improve methane recovery from sewage was investigated. Although the process needs further optimization, it already is feasible to recover at least 35% of the sewage COD. Important aspects for further research are the occurrence of membrane fouling, and the optimum process conditions for bioflocculation, i.e. the proper SRT/HRT ratio, ...
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Considerations for the design and operation of a membrane bioreactor
This paper reviews recent advances in research focusing on the design and operation of a membrane bioreactor and including methodologies for determining the timing for hydraulic and sludge retention, sludge concentration optimisation, the removal of nitrogen and phosphorus, membrane fouling control, and the analysis of processing economics.Keywords: membrane bioreactors, activated sludge, ...
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Emerging technologies, integration with proven processes, and the challenges they represent
This paper will focus on integration of a new, emerging technology with the old, proven methods to affect a hybrid process. By doing so, the net effect is often a cost-effective compromise and a relatively painless solution to otherwise difficult problems. The concept is simple, but mixing the new with the old is not without risks. We shall also examine the pitfalls of bringing a metal recovery ...
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A venturi device reduces membrane fouling in a submerged membrane bioreactor
In this study, for the first time, a venturi device was integrated into a submerged membrane bioreactor (MBR) to improve membrane surface cleaning and bioreactor oxygenation. The performances of a blower and the venturi device were compared in terms of membrane fouling and bioreactor oxygenation. Upon comparing membrane fouling, the performances were similar for a low operation flux (18 ...
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[PHILOS] Membrane Bioreactor
Are you curious about the latest happenings in the membrane industry? Stay informed and stay ahead in the membrane industry with PHILOS' brand-new Newsletter! Discover the latest developments, industry insights, and exclusive updates on our products. Don't miss out on this valuable resource to enhance your knowledge and stay connected with us. Stay tuned to learn more! For more information about ...
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Dye wastewater treatment by using ceramic membrane bioreactor
Performance of a Micro-filtration Membrane Bioreactor (MMBR) for treatment of dye wastewater was investigated. The experimental results indicated that the removal efficiency for COD, TOC and colour was 85%, 85-90% and 70%, respectively, the effluent COD was below 70 mgl−1 on average. Gel layer resistance of COD was 10%. Particle size distribution of sludge in MMBR was 1-150 μm, and the average ...
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MBR Operation
Although membrane bioreactor (MBR) technology has grown up to become a state-of-the-art in municipal wastewater treatment during the last decade, design, construction and operation of MBRs has not yet become a routine function. An insight into the practice of MBR technology will be available as a report at IWA Publishing by October 2010. ‘Operating Large-Scale Membrane ...
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Evaluation of different configurations of hybrid membrane bioreactors for treatment of domestic wastewater
Four membrane bioreactors (MBRs) with the same dimensions were studied for 180 days: three hybrid growth membrane bioreactors with biofilm attached in different packing media and a conventional MBR (C-MBR). The four MBRs had an identical membrane module of hollow fiber with a nominal porous diameter of 0.4 μm. The MBRs were: (1) a C-MBR; (2) a moving bed membrane bioreactor (MB-MBR), ...
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Advantages of MBRs Over Conventional Biological Treatment Method
1. What is MBR (Membrane Bioreactor)? The MBR (Membrane Bioreactor) which was first used in the late 1960s made a revolution in the wastewater industry in the early 1990s by combining membrane filtration with a biological treatment solution to treat wastewater. It's been commonly used since then and can be seen widely practiced in the design of both new and old wastewater treatment facilities. ...
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Use of flocculants for increasing permeate flux in anaerobic membrane bioreactors
Biomass retention, required for high rate anaerobic wastewater treatment, can be accomplished coupling an anaerobic bioreactor with membrane filtration. However, low flux seems to be a common factor when operating anaerobic membrane bioreactors (AnMBRs). Modification of biomass properties may represent a strategy for improving membrane flux. The addition of flocculants was tested as a tool for ...
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Performance and quality analysis of membrane cartridges used in long-term operation
In this study, operation and maintenance performance in two long-term operating Membrane Bioreactor (MBR) wastewater treatment facilities were investigated. One facility in Japan started its operation in 1999 showed that both effluent BOD and n-hexane extracts were less than 5 mg/L, and a cumulative replacement percentage (CR%) of membrane cartridges was 7.8% as of 2008. Another facility in the ...
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Application of a membrane bioreactor for winery wastewater treatment
Winery wastewaters are variable in nature and are hard to treat by means of the conventional activated sludge process because of the high organic loading associated with their production, especially during vintage. To face this situation, recently, membrane bioreactors have been widely applied to treat winery wastewaters. In this study, a full-scale membrane bioreactor treated some 110 m3/d of ...
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Performance of a MBR for the treatment of blackwater
The paper describes the experience gained in operating a membrane bioreactor (MBR) for the treatment of blackwater. Beside a complete characterization of blackwater, operational conditions and removal efficiency concerning parameters such as COD, BOD5, nitrogen and phosphorus as well as microbiological parameters were determined. Furthermore the membrane performance was investigated. The results ...
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