Impact of membrane configuration on fouling in anaerobic membrane bioreactors

Martín-García, A. I.; Monsalvo, Victor M.; Pidou, Marc; Le‐Clech, Pierre; Judd, Simon; McAdam, Ewan J.; Jefferson, Bruce

doi:10.1016/j.memsci.2011.07.042

Cited by 94 publications

(57 citation statements)

References 39 publications

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“…A previous study comparing AeMBR and AnMBR systems reported SMP levels that were up to 6 times higher in the AnMBR, and that the AnMBR experienced more rapid membrane fouling [39]. However, our findings did not show any correlation between the abundance of SMP and extent of membrane fouling.…”

Section: Discussioncontrasting

confidence: 97%

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: Discussioncontrasting

confidence: 97%

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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“…Huang et al (2013) with three submerged anaerobic membrane bioreactors (SAnMBRs), at 25-30°C, VLR of 1.02 ± 0.14 kg tCOD/m 3 d, achieved total COD removal efficiencies of 84 ± 6%, 85 ± 3%, 86 ± 3%, respectively. Martin-Garcia et al (2011) working with a granular-AnMBR, HRT of 16 h, VLR of 0.51 kg tCOD/m 3 d, upflow velocity of 1 m/h, and fed with real domestic wastewater and without external temperature control, obtained a similar COD removal of 86%.…”

Section: Cod Removal Efficiencymentioning

confidence: 87%

A novel configuration for an anaerobic submerged membrane bioreactor (AnSMBR). Long-term treatment of municipal wastewater under psychrophilic conditions

Gouveia

Plaza

Garralón

et al. 2015

Bioresource Technology

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“…Biomass concentration, quantified through MLVSS, presented the typical values of AnMBRs (7.1±1.1 g/L), such as their MLVSS/MLSS ratio (0.76±0.02), as well as the soluble organic matter measured through COD S (Martin-Garcia et al 2011). Moderate TTF values were found (52±13.6 min), with a median particle size d 50 of 29.0±2.0 μm.…”

Section: Biomass Characteristicsmentioning

confidence: 93%

“…Higher fouling propensity of the anaerobic biomass has led to sustainable fluxes within 5-12 L/h m 2 , with a wide variability in biogas sparging intensities, ranging from 0.4 to 3.0 m 3 /m 2 h (Hu and Stuckey 2006). The lower permeate fluxes, compared to aerobic systems, are considered a consequence of low biomass flocculation since the supernatant colloidal fraction increases (Martin-Garcia et al 2011). Likewise, gas sparging fails to provide enough membrane scouring to prevent cake formation at high sludge concentrations (Jeison et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Analysis of backwashing efficiency in dead-end hollow-fibre ultrafiltration of anaerobic suspensions

Vera

Cabrera

Ruigómez

et al. 2015

Environ Sci Pollut Res

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A novel dead-end mode operation for filtering anaerobic suspensions was investigated. In this mode, the filtration system automatically adjusted backwashing frequency to a preselected transmembrane pressure set-point. This paper discusses the effectiveness of the backwashing conditions on membrane fouling. Anaerobic suspensions from a conventional wastewater treatment plant digester were used as model suspensions for the trials carried out at lab-scale. Gas sparging aided backwashing significantly enhanced membrane cleaning efficiency. No effect of gas sparging on internal fouling was detected. Also, the cleaning efficiency linearly decreased with permeate flux. Nevertheless, due to a high increase in the reversible fouling, a reasonable net permeate flux (7.2-6.8 L/h m(2)) can be achieved when intermediate fluxes (12-16 L/h m(2)) were imposed and the higher transmembrane pressure set-point value (50 kPa) was applied. Both backwashing duration and flux exhibited similar influence on cake fouling removal for a given volume of permeate produced.

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Impact of membrane configuration on fouling in anaerobic membrane bioreactors

Cited by 94 publications

References 39 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

A novel configuration for an anaerobic submerged membrane bioreactor (AnSMBR). Long-term treatment of municipal wastewater under psychrophilic conditions

Analysis of backwashing efficiency in dead-end hollow-fibre ultrafiltration of anaerobic suspensions

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