Impact of colloidal and soluble organic material on membrane performance in membrane bioreactors for municipal wastewater treatment

Rosenberger, S.; Laabs, C.; Lesjean, B.; Gnirß, Regina; Amy, Gary L.; Jekel, Martin; Schrotter, Jean‐Christophe

doi:10.1016/j.watres.2005.11.028

Cited by 507 publications

(227 citation statements)

References 24 publications

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“…On the other hand, the separation through the membrane of the polysaccharides is 31% and for the protein it is 28%, both remaining constant throughout the experimental test. These membrane retention values are similar to those found in the literature (Rosenberger et al, 2006). A low concentration was unexpected in the liquid-phase, as the common trend is to suppose EPS accumulation resulting from polymer retention by the membrane (Masse et al, 2006).…”

Section: Analysis Of the Liquid Phase Extracellular Polymeric Substasupporting

confidence: 89%

Aerobic Membrane Bioreactor for Wastewater Treatment – Performance Under Substrate-Limited Conditions

Delgado¹,

Villarroel²,

González³

et al. 2011

Biomass - Detection, Production and Usage

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Section: Analysis Of the Liquid Phase Extracellular Polymeric Substasupporting

confidence: 89%

Aerobic Membrane Bioreactor for Wastewater Treatment – Performance Under Substrate-Limited Conditions

Delgado¹,

Villarroel²,

González³

et al. 2011

Biomass - Detection, Production and Usage

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“…This simple filtration model includes temperature correction (Eq. 2) to account for the dependence of permeate viscosity on temperature (Rosenberger et al, 2006), and therefore the normalised flux (J20) was obtained by using Eq. 4.…”

Section: Modified Flux-step Methods and Membrane Performance Indicesmentioning

confidence: 99%

Polyvinyl alcohol nanofiber reinforced Nafion membranes for fuel cell applications

Mollá

Compañ

2011

Journal of Membrane Science

130

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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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“…Hence the total volumetric flow rate through the membrane is expressed as the summation of the flow rate through the unblocked Qu and blocked Qb pores respectively as shown in Equation (13).…”

Section: Theoretical Modelling Approachmentioning

confidence: 99%

“…The true origin of fouling has yet to be fully defined, although many researchers widely acknowledge that SMP (soluble microbial products) and EPS (extracellular polymeric substances) are the most likely fouling agents [12]. This is since the build-up of SMP and EPS can cause reduction in membrane permeability [13,14]. Additional factors affecting fouling mechanisms include; Scaling, biofilm formation, operating conditions such as pH, temperature and flow rates, solution properties such as particle size distribution [12].…”

Section: Introductionmentioning

confidence: 99%

Development of a Comprehensive Fouling Model for a Rotating Membrane Bioreactor System Treating Wastewater

Paul

Jones

2015

Water

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Membrane bioreactors (MBRs) are now main stream wastewater treatment technologies. In recent times, novel pressure driven rotating membrane disc modules have been specially developed that induce high shear on the membrane surface, thereby reducing fouling. Previous research has produced dead-end filtration fouling model which combines all three classical mechanisms that was later used by another researcher as a starting point for a greatly refined model of a cross flow side-stream MBR that incorporated both hydrodynamics and soluble microbial products' (SMP) effects. In this study, a comprehensive fouling model was created based on this earlier work that incorporated all three classical fouling mechanisms for a rotating MBR system. It was tested and validated for best fit using appropriate data sets. The initial model fit appeared good for all simulations, although it still needs to be calibrated using further appropriate data sets.

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Impact of colloidal and soluble organic material on membrane performance in membrane bioreactors for municipal wastewater treatment

Cited by 507 publications

References 24 publications

Aerobic Membrane Bioreactor for Wastewater Treatment – Performance Under Substrate-Limited Conditions

Aerobic Membrane Bioreactor for Wastewater Treatment – Performance Under Substrate-Limited Conditions

Polyvinyl alcohol nanofiber reinforced Nafion membranes for fuel cell applications

Development of a Comprehensive Fouling Model for a Rotating Membrane Bioreactor System Treating Wastewater

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