Influence of filtration conditions on membrane fouling and scouring aeration effectiveness in submerged membrane bioreactors to treat municipal wastewater

Nywening, John-Paul; Zhou, Haibo

doi:10.1016/j.watres.2009.04.050

Cited by 31 publications

(9 citation statements)

References 16 publications

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“…Similarly, mechanical air scouring methods have been used extensively for mitigation of membrane fouling in aerobic MBRs [59,60]. To compliment these methods, biological-based approaches can be used to further prolong membrane life in AeMBRs.…”

Section: Discussionmentioning

confidence: 99%

Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors

Xiong

Harb

Hong

2016

Separation and Purification Technology

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Please cite this article as: Y. Xiong, M. Harb, P-Y. Hong, Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors, Separation and Purification Technology (2015), doi: http://dx.doi.org/10.1016/j.seppur. 2015.11.024 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. AbstractThis study compares the membrane fouling mechanisms of aerobic (AeMBR) and anaerobic membrane bioreactors (AnMBR) of the same reactor configuration at similar operating conditions. Although both the AeMBR and AnMBR achieved more than 90% COD removal efficiency, the fouling mechanisms were different. Molecular weight (MW) fingerprint profiles showed that a majority of fragments in anaerobic soluble microbial products (SMP) were retained by the membrane and some AnMBR systems and can be applied to facilitate the development of appropriate fouling control strategies.

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Section: Discussionmentioning

confidence: 99%

Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors

Xiong

Harb

Hong

2016

Separation and Purification Technology

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“…linearly with aeration rate [3,31]. Between superficial air velocities of 0.028 and 0.043 m/s (hollow fibre module), Nywening and Zhou [7] found that the reversible fouling resistance decreased exponentially with increasing aeration intensity. Exceeding a superficial gas flow rate of u G,r =V air /A r = 0.04 m/s did not yield much additional effect on the liquid velocity in a flatsheet MBR [169].…”

Section: Effect Of Aeration On Permeabilitymentioning

confidence: 98%

“…In comparison to the conventional activated sludge process (CAS), this results in higher operational costs mainly for membrane aeration (e.g., Refs. [1,[5][6][7]), and in an additional environmental burden through the use of aggressive chemicals for membrane cleaning, etc. [8,9].…”

Section: Membrane Bioreactors (Mbr)mentioning

confidence: 99%

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Membrane fouling in membrane bioreactors—Characterisation, contradictions, cause and cures

Drews

2010

Journal of Membrane Science

817

329

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“…Membrane fouling is due to the accumulation of feed components on the membrane surface or within the membrane pores during the filtration process [12,13]. The reversible membrane fouling can be controlled by hydrodynamic operating conditions and frequent backwashing, while the irreversible fouling is defined as solids which cannot be removed by simple hydraulic cleaning, but requires more intensive chemical cleaning [14].…”

Section: Introductionmentioning

confidence: 99%

Combined Adsorption/Ultrafiltration of Secondary Effluents Using Powdered Zeolites

Chen

Bai

et al. 2016

Chem Eng & Technol

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The performance of powdered zeolite (PZ) adsorption/ultrafiltration (UF) with real secondary effluents is investigated. With the assistance of PZs, the membrane fouling rate was reduced and the permeate flux recovery as well as the advanced treatment of the secondary effluents were enhanced. 3D excitation emission matrix (3D-EEM) fluorescence spectra indicate that the removal of fluorescence intensity for aromatic proteins, fulvic acid-like materials, soluble microbial byproduct-like materials, and humic acid-like organics could be improved by PZs. UF membranes with PZs can increase the removal efficiency of organics, especially of those with low molecular weight. The characteristics of the cake layer on the surface of an UF membrane were determined by scanning electron microscopy and electron energy-dispersive X-ray spectroscopy for the combined adsorption/UF membrane.

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Influence of filtration conditions on membrane fouling and scouring aeration effectiveness in submerged membrane bioreactors to treat municipal wastewater

Cited by 31 publications

References 16 publications

Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors

Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors

Membrane fouling in membrane bioreactors—Characterisation, contradictions, cause and cures

Combined Adsorption/Ultrafiltration of Secondary Effluents Using Powdered Zeolites

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