The membrane biofilm reactor (MBfR) for water and wastewater treatment: Principles, applications, and recent developments

Martin, Kelly J.; Nerenberg, Robert

doi:10.1016/j.biortech.2012.02.110

Cited by 305 publications

(181 citation statements)

References 85 publications

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“…They are based on the transfer of a gaseous electron donor or acceptor across a hydrophobic membrane (Ivanovic and Leiknes, 2012;Nerenberg, 2016) and have only recently been use as a commercial product, which is not established within the nutrient removal market (Martin and Nerenberg, 2012). MABRs behave differently to conventional biofilms due to the presence of gas exchange, adding a layer of complexity to the treatment process (Martin and Nerenberg, 2012). They have been successfully commercialized for N removal and recent studies report total Premoval of up to 90% when used with an SBR (Sun et al, 2015).…”

Section: Novel and Potential Ebpr Systemsmentioning

confidence: 99%

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

Bunce

Ndam

Ofiţeru

et al. 2018

Front. Environ. Sci.

384

204

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The removal of phosphorus (P) from domestic wastewater is primarily to reduce the potential for eutrophication in receiving waters, and is mandated and common in many countries. However, most P-removal technologies have been developed for use at larger wastewater treatment plants that have economies-of-scale, rigorous monitoring, and in-house operating expertise. Smaller treatment plants often do not have these luxuries, which is problematic because there is concern that P releases from small treatment systems may have greater environmental impact than previously believed. Here P-removal technologies are reviewed with the goal of determining which treatment options are amenable to small-scale applications. Significant progress has been made in developing some technologies for small-scale application, namely sorptive media. However, as this review shows, there is a shortage of treatment technologies for P-removal at smaller scales, particularly sustainable and reliable options that demand minimal operating and maintenance expertise or are suited to northern latitudes. In view of emerging regulatory pressure, investment should be made in developing new or adapting existing P-removal technologies, specifically for implementation at small-scale treatment works.

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Section: Novel and Potential Ebpr Systemsmentioning

confidence: 99%

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

Bunce

Ndam

Ofiţeru

et al. 2018

Front. Environ. Sci.

384

204

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“…For example, compared to their planktonic counterparts, biofilms have been reported to be more tolerant to harsh physicochemical conditions as generated by various toxic contaminants or biocides (1,4). Because of these advantages, biofilms have been increasingly applied to the efficient removal of toxic contaminants from industrial wastewater (5)(6)(7)(8).…”

mentioning

confidence: 99%

Disruption of Putrescine Biosynthesis in Shewanella oneidensis Enhances Biofilm Cohesiveness and Performance in Cr(VI) Immobilization

Ding

Peng

et al. 2014

Appl Environ Microbiol

120

159

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Although biofilm-based bioprocesses have been increasingly used in various applications, the long-term robust and efficient biofilm performance remains one of the main bottlenecks. In this study, we demonstrated that biofilm cohesiveness and performance of Shewanella oneidensis can be enhanced through disrupting putrescine biosynthesis. Through random transposon mutagenesis library screening, one hyperadherent mutant strain, CP2-1-S1, exhibiting an enhanced capability in biofilm formation, was obtained. Comparative analysis of the performance of biofilms formed by S. oneidensis MR-1 wild type (WT) and CP2-1-S1 in removing dichromate (Cr 2 O 7 2؊ ), i.e., Cr(VI), from the aqueous phase showed that, compared with the WT biofilms, CP2-1-S1 biofilms displayed a substantially lower rate of cell detachment upon exposure to Cr(VI), suggesting a higher cohesiveness of the mutant biofilms. In addition, the amount of Cr(III) immobilized by CP2-1-S1 biofilms was much larger, indicating an enhanced performance in Cr(VI) bioremediation. We further showed that speF, a putrescine biosynthesis gene, was disrupted in CP2-1-S1 and that the biofilm phenotypes could be restored by both genetic and chemical complementations. Our results also demonstrated an important role of putrescine in mediating matrix disassembly in S. oneidensis biofilms.

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“…The total time, from placement of the biofilm in the flow cell until the end of testing of the biofilm section, was less than 3 h. MBfR applications are promising biofilm-based technologies where biofilm management sets important challenges for the performance of the system (e.g. biofilm start-up times, optimal biofilm thickness, detachment control) [34]. Biofilm effective viscosity was determined by shear rheometry using a parallel plate rotational rheometer rsif.royalsocietypublishing.org J. R. Soc.…”

Section: Experiments To Test the Mechanical Properties Of Biofilmsmentioning

confidence: 99%

“…In particular, we assessed how different shear stress conditions affect biofilm detachment. For this purpose, we used biofilms obtained from a mixed culture membrane biofilm reactor (MBfR) [34]. Biofilm samples were obtained from a 250-ml MBfR, inoculated with activated sludge from a local wastewater treatment plant.…”

Section: Experiments To Test the Mechanical Properties Of Biofilmsmentioning

confidence: 99%

Multicomponent model of deformation and detachment of a biofilm under fluid flow

Tierra

Pavissich

Nerenberg

et al. 2015

J. R. Soc. Interface.

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A novel biofilm model is described which systemically couples bacteria, extracellular polymeric substances (EPS) and solvent phases in biofilm. This enables the study of contributions of rheology of individual phases to deformation of biofilm in response to fluid flow as well as interactions between different phases. The model, which is based on first and second laws of thermodynamics, is derived using an energetic variational approach and phase-field method. Phase-field coupling is used to model structural changes of a biofilm. A newly developed unconditionally energy-stable numerical splitting scheme is implemented for computing the numerical solution of the model efficiently. Model simulations predict biofilm cohesive failure for the flow velocity between O(10 À3 ) and O(10 À2 ) m s 21 which is consistent with experiments. Simulations predict biofilm deformation resulting in the formation of streamers for EPS exhibiting a viscous-dominated mechanical response and the viscosity of EPS being less than O(10) kg m À1 s À1 . Higher EPS viscosity provides biofilm with greater resistance to deformation and to removal by the flow. Moreover, simulations show that higher EPS elasticity yields the formation of streamers with complex geometries that are more prone to detachment. These model predictions are shown to be in qualitative agreement with experimental observations.

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The membrane biofilm reactor (MBfR) for water and wastewater treatment: Principles, applications, and recent developments

Cited by 305 publications

References 85 publications

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

Disruption of Putrescine Biosynthesis in Shewanella oneidensis Enhances Biofilm Cohesiveness and Performance in Cr(VI) Immobilization

Multicomponent model of deformation and detachment of a biofilm under fluid flow

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