Anaerobic Membrane Bioreactors: Applications and Research Directions

Liao, Baoqiang; Kraemer, Jeremy; Bagley, David M.

doi:10.1002/chin.200719268

Cited by 78 publications

(139 citation statements)

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“…A small footprint, complete solid-liquid separation, high volumetric organic removal rate, and higher effluent quality are some of the key advantages of the MBR and AnMBR [20,[64][65][66]. In the submerged hollow fiber MBR, the membranes are directly immersed in the aeration tank.…”

Section: Membrane Bioreactors (Mbrs)mentioning

confidence: 99%

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

et al. 2017

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Abstract:The submerged membrane filtration concept is well-established for low-pressure microfiltration (MF) and ultrafiltration (UF) applications in the water industry, and has become a mainstream technology for surface-water treatment, pretreatment prior to reverse osmosis (RO), and membrane bioreactors (MBRs). Compared to submerged flat sheet (FS) membranes, submerged hollow fiber (HF) membranes are more common due to their advantages of higher packing density, the ability to induce movement by mechanisms such as bubbling, and the feasibility of backwashing. In view of the importance of submerged HF processes, this review aims to provide a comprehensive landscape of the current state-of-the-art systems, to serve as a guide for further improvements in submerged HF membranes and their applications. The topics covered include recent developments in submerged hollow fiber membrane systems, the challenges and developments in fouling-control methods, and treatment protocols for membrane permeability recovery. The highlighted research opportunities include optimizing the various means to manipulate the hydrodynamics for fouling mitigation, developing online monitoring devices, and extending the submerged HF concept beyond filtration.

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Section: Membrane Bioreactors (Mbrs)mentioning

confidence: 99%

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

et al. 2017

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“…The gas sparging intensity in each operating range is a key operating parameter that must be optimized in order to minimise both investment and operating costs in AnMBR systems. Several strategies to control fouling (Liao et al, 2006;Vallero et al, 2005;Dvořák et al, 2011) aim to optimise filtration whilst minimising investment and operating costs. One such strategy is based on using membranes in sub-critical filtration conditions.…”

Section: Mlts Levels In Aerobic Mbrsmentioning

confidence: 99%

Polyvinyl alcohol nanofiber reinforced Nafion membranes for fuel cell applications

Mollá

Compañ

2011

Journal of Membrane Science

137

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A submerged anaerobic MBR demonstration plant with two commercial hollowfibre ultrafiltration systems (PURON ® , Koch Membrane Systems, PUR-PSH31) was operated using municipal wastewater at high levels of mixed liquor total solids (MLTS) (above 22 g L -1 ). A modified flux-step method was applied to assess the critical flux (JC) at different gas sparging intensities. The results showed a linear dependency between JC and the specific gas demand per unit of membrane area (SGDm). JC ranged from 12 to 19 LMH at SGDm values of between 0.17 and 0.5 Nm 3 h -1 m -2 , which are quite low in comparison to aerobic MBR. Long-term trials showed that the membranes operated steadily at fluxes close to the estimated JC, which validates the JC obtained by this method. After operating the membrane for almost two years at sub-critical levels, no irreversible fouling problems were detected, and therefore, no chemical cleaning was conducted. KeywordsCritical flux; gas sparging; industrial hollow-fibre membranes; modified flux-step 2 method; submerged anaerobic membrane bioreactor

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“…There were three parallelly placed flat sheet membrane panels 21 mounted in an external chamber, and the fermentation liquid was continuously 22 circulated from the bioreactor into the external chamber and back to the bioreactor. The 23 advantage of placing the submerged membrane in an external chamber is that it is easier 24 to clean (Liao et al, 2006). If the membrane requires cleaning with chemicals when it is 1 placed inside the bioreactor the entire MBR system need to be cleaned at the same time, 2 requiring more chemicals and generating more waste after cleaning.…”

Section: Submerged Membrane Units 19mentioning

confidence: 99%

Fermentation of lignocellulosic hydrolyzate using a submerged membrane bioreactor at high dilution rates

Ylitervo

Doyen

Taherzadeh

2014

Bioresource Technology

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Please cite this article as: Ylitervo, P., Doyen, W., Taherzadeh, M.J., Fermentation of lignocellulosic hydrolyzate using a submerged membrane bioreactor at high dilution rates, Bioresource Technology (2014), doi: http:// dx.doi.org/10. 1016/j.biortech.2014.04.066 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. 1Fermentation of lignocellulosic hydrolyzate using a submerged 1 membrane bioreactor at high dilution rates and 0.8 h -1 with the increase of dilution rate. Results show that the yeast in the sMBR 7 was able to ferment the wood hydrolyzate even at high dilution rates, attaining a 8 maximum volumetric ethanol productivity of 7.94 ± 0.10 g L -1 h -1 at a dilution rate of 9 0.8 h -1 . Ethanol yields were stable at 0.44 ± 0.02 g g -1 during all the tested dilution rates, 10 and the ethanol productivity increased from 2.16 ± 0.15 to 7.94 ± 0.10 g L -1 h -1 . The 11 developed sMBR systems running at high yeast density demonstrates a potential for a 12 rapid and productive ethanol production from wood hydrolyzate. 13 14

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Anaerobic Membrane Bioreactors: Applications and Research Directions

Abstract: ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Cited by 78 publications

References 1 publication

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

Polyvinyl alcohol nanofiber reinforced Nafion membranes for fuel cell applications

Fermentation of lignocellulosic hydrolyzate using a submerged membrane bioreactor at high dilution rates

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