Osmotic membrane bioreactors assisted with microfiltration membrane for salinity control (MF-OMBR) operating at high sludge concentrations: Performance and implications

Zhu, Weijun; Wang, Xinhua; She, Qianhong; Li, Xiufen; Ren, Yueping

doi:10.1016/j.cej.2017.12.148

Cited by 41 publications

(19 citation statements)

References 49 publications

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“…In another lab-scale OMBR study [105] observed that a low MLSS concentration is not enough to effectively remove OMPs with both slow biodegradation and low molecular weight of the OMPs such as Trimethoprim. However, the removal rate of Trimethoprim was improved when biomass was increased [101].…”

Section: Osmotic Membrane Bioreactor (Ombr) For Omps Removalmentioning

confidence: 97%

“…FO membrane rejection mechanism for OMP removal can be attributed to electrostatic repulsion, hydrated radius, molecular weight cut-off, retarded forward diffusion, Henry's law constants and hydrophilic (log D). Further, in the bioreactor OMP removal involves biodegradation in presence of diverse microbial communities and sludge sorption [101]. Table 4 shows some of the recent work of OMBR in OMP removal.…”

Section: Osmotic Membrane Bioreactor (Ombr) For Omps Removalmentioning

confidence: 99%

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Removal of Organic Micro-Pollutants by Conventional Membrane Bioreactors and High-Retention Membrane Bioreactors

et al. 2020

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The ubiquitous presence of organic micropollutants (OMPs) in the environment as a result of continuous discharge from wastewater treatment plants (WWTPs) into water matrices—even at trace concentrations (ng/L)—is of great concern, both in the public and environmental health domains. This fact essentially warrants developing and implementing energy-efficient, economical, sustainable and easy to handle technologies to meet stringent legislative requirements. Membrane-based processes—both stand-alone or integration of membrane processes—are an attractive option for the removal of OMPs because of their high reliability compared with conventional process, least chemical consumption and smaller footprint. This review summarizes recent research (mainly 2015–present) on the application of conventional aerobic and anaerobic membrane bioreactors used for the removal of organic micropollutants (OMP) from wastewater. Integration and hybridization of membrane processes with other physicochemical processes are becoming promising options for OMP removal. Recent studies on high retention membrane bioreactors (HRMBRs) such as osmotic membrane bioreactor (OMBRs) and membrane distillation bioreactors (MDBRs) are discussed. Future prospects of membrane bioreactors (MBRs) and HRMBRs for improving OMP removal from wastewater are also proposed.

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Section: Osmotic Membrane Bioreactor (Ombr) For Omps Removalmentioning

confidence: 97%

Section: Osmotic Membrane Bioreactor (Ombr) For Omps Removalmentioning

confidence: 99%

Removal of Organic Micro-Pollutants by Conventional Membrane Bioreactors and High-Retention Membrane Bioreactors

et al. 2020

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“…MFM with a pore size around 0.1 μm can be operated at longer sludge retention times (SRT), achieving high sludge concentrations [76]. The COD and NH 4 removal rates achieved were greater than 90 % by using a hollow-fiber MFM in an MFC-MBR [23].…”

Section: Membrane Filtration Materialsmentioning

confidence: 99%

Microbial Fuel Cell Membrane Bioreactor in Wastewater Treatment, Electricity Generation and Fouling Mitigation

et al. 2020

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Membrane bioreactors (MBR) have gained much attention due to their ability to achieve higher treatment efficiency. However, high external energy consumption in aeration for membrane fouling mitigation has been limiting their application. Microbial fuel cells (MFC) can ideally extract energy from wastewater in the form of electricity and reduce membrane fouling. Thus, the use of MFC‐MBR is rapidly expanding. However, the MFC‐MBR design and operation is not fully mature and further research is needed to optimize the process efficiency and enhance the applicability. This review gives an overview of recent studies on the performances of MFC‐MBR systems, regarding the design and configuration of the integrated system, irrespective of whether optimization was done or not in the operating system.

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“…The integrated FO system include osmotic microbial fuel cell (OsMFC) and osmotic membrane bioreactor (OMBR). Recent literature have elucidated the integration of osmosis in MFC and MBR for simultaneous recovery of osmotic water, the concentration of wastewater, and the improvement of effluent quality through the application of the FO membrane [106,107].…”

Section: Integrated Fo Systemmentioning

confidence: 99%

“…Zhu Wenjun [107] utilized an integrated UF or MF membrane system in the OMBR system to remove the soluble inorganic salts in the reactor. This process has a longer SRT than the traditional OMBR system, so a higher sludge concentration can be obtained.…”

Section: Ombrmentioning

confidence: 99%

Research on Forward Osmosis Membrane Technology Still Needs Improvement in Water Recovery and Wastewater Treatment

Shi

2019

Water

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Forward osmosis (FO) has become an evolving membrane separation technology to recover water due to its strong retention capacity, sustainable membrane fouling, etc. Although a good deal of research has been extensively investigated in the past decades, major challenges still remain as follows: (1) the novel FO membrane material properties, which significantly influence the fouling of the FO membranes, the intolerance reverse solute flux (RSF), the high concentration polarization (CP), and the low permeate flux; (2) novel draw solution preparation and utilization; (3) salinity build-up in the FO system; (4) the successful implementation of the FO process. This work critically reviews the last five years’ literature in development of the novel FO membrane material, structure in modification, and preparation, including comparison and analysis on the traditional and novel draw solutes coupled with their effects on FO performance; application in wastewater treatment, especially hybrid system and integrated FO system; fouling mechanism; and cleaning strategy as discussed in the literature. The current barriers of the research results in each hotspot and the areas that can be improved are also analyzed in detail. The research hotspots in the research and development of the novel membrane materials in various countries and regions have been compared in recent years, and the work of variation in pop research hotspots in the past 10 years has been analyzed and the ideas that fill the blank gaps also have been proposed.

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Osmotic membrane bioreactors assisted with microfiltration membrane for salinity control (MF-OMBR) operating at high sludge concentrations: Performance and implications

Cited by 41 publications

References 49 publications

Removal of Organic Micro-Pollutants by Conventional Membrane Bioreactors and High-Retention Membrane Bioreactors

Removal of Organic Micro-Pollutants by Conventional Membrane Bioreactors and High-Retention Membrane Bioreactors

Microbial Fuel Cell Membrane Bioreactor in Wastewater Treatment, Electricity Generation and Fouling Mitigation

Research on Forward Osmosis Membrane Technology Still Needs Improvement in Water Recovery and Wastewater Treatment

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