Effect of carriers on sludge characteristics and mitigation of membrane fouling in attached-growth membrane bioreactor

Hu, Jun; Ren, Hongqiang; Xu, Ke; Geng, Jinju; Ding, Lili; Yan, Xu; Li, Kun

doi:10.1016/j.biortech.2012.05.029

Cited by 50 publications

(9 citation statements)

References 32 publications

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“…biofilm carriers) in moving or fixed bed configurations, or aerated membranes in the bioreactor as a support for biofilm growth [219]. Recent studies on hybrid growth membrane bioreactors, in which biomass is in suspension and attached to packing media, were mainly devoted to fouling and testing of different configurations [220][221][222][223][224][225]. Yang et al [223] evaluated four types of hybrid growth MBRs and concluded that the system containing carriers but without a draft tube, was the preferred option to reduce membrane fouling without affecting the removal efficiency.…”

Section: 4mentioning

confidence: 99%

“…The attached-growth media have a positive role in controlling membrane fouling in MBR systems and allow operation at 30% higher critical flux, however more excess biomass is produced [221]. Hu et al [222] demonstrated reduced membrane fouling rates in two attached-growth MBRs: one with carriers and one with carriers and baffles. The operation times were, respectively, 4.2 and 3.5 times longer compared to a suspended-growth MBR.…”

Section: 4mentioning

confidence: 99%

See 1 more Smart Citation

Membrane bioreactors – A review on recent developments in energy reduction, fouling control, novel configurations, LCA and market prospects

Krzemiński

Leverette

Malamis

et al. 2017

Journal of Membrane Science

378

156

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Membrane bioreactor (MBR) technology is considered a well-established, mature technology with many full-scale plants around the world treating municipal and industrial wastewater. However, membrane fouling and energy consumption still remain serious obstacles and challenges in the wider spread of the MBR technology. Therefore, considerable research and development efforts are still underway. Recent developments are primarily focused on aspects related to energy reduction, fouling control and novel configurations for enhanced process performance. This review addresses the recent work on the above mentioned aspects and it discusses the overall life cycle of MBRs and the market prospects for MBR technology. Novel MBR configurations and integrations with other technologies are also reviewed. Finally, the challenges that need to be addressed in order to facilitate market penetration of MBR technology are highlighted.

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Section: 4mentioning

confidence: 99%

Section: 4mentioning

confidence: 99%

Membrane bioreactors – A review on recent developments in energy reduction, fouling control, novel configurations, LCA and market prospects

Krzemiński

Leverette

Malamis

et al. 2017

Journal of Membrane Science

378

156

View full text Add to dashboard Cite

show abstract

“…Several investigations on the effect of introducing granular or carrier for mitigating membrane fouling have been reported (Yang et al, 2006;Hu et al, 2012). However, most of them relied on physical contact between carrier and membrane surface.…”

Section: Discussionmentioning

confidence: 99%

Mitigated membrane fouling of anammox membrane bioreactor by microbiological immobilization

Zhang

Liu

Miyoshi

et al. 2016

Bioresource Technology

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In this study, membrane fouling behavior of anammox MBR with or without carriers made by magnetic porous carbon microspheres was investigated. The results show that Trans Membrane Pressure was an order of magnitude lower after 50days due to use of carriers, which did not directly contact with membrane surface. Scanning Electron Microscope analysis indicates that abundance of anammox bacteria formed biofilm on membrane surface. Fourier transform infrared spectroscopy combined with amino acids contents analysis for membrane surface deposition show that metabolite released by anammox bacteria contains more hydrophobic groups than hydrophilic, which was considered as important reason for its abundant existence on hydrophobic membrane surface. Microbiological immobilization not only reduces biological membrane fouling, but also mitigates organic fouling including organic matter containing COO, hydrophobic groups (CH3, CH2 and CH etc), as well as inorganic deposition. Our finding provides an effective method for mitigating MBR membrane fouling in anammox process.

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“…In some studies, the fluidizing space for the carriers was separated from the membrane tank to prevent damage to the membrane surface [9,[12][13][14][15]. It has been reported that the combination of biofilm and the MBR process mitigates membrane fouling by improving the filterability of mixed liquor suspensions [1,4,[14][15][16]. In contrast, some researchers have noted that this combination process induced membrane fouling because of the promotion of the accumulation of cake on the membrane surface [17,18].…”

Section: Introductionmentioning

confidence: 96%

Influence of different biofilm carriers on the operation and membrane fouling of submerged membrane bioreactors

Kurita

Mogi

Kimura

2016

Separation and Purification Technology

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a b s t r a c tIt has been reported that the combination process of biofilm and submerged membrane bioreactors (MBRs) can mitigate membrane fouling. In this study, the influence of using three different biofilm carriers (fixed rope carrier, moving granular carrier and moving sponge carrier) on the operation and membrane fouling of MBRs was investigated. Using rope or sponge carriers with MBR processes improved the removal efficiency of nitrogen via the creation of an anoxic part inside the carriers. However, membrane fouling became very severe when rope carriers were used. Using granular or sponge carriers effectively mitigated membrane fouling because they mechanically cleaned the membrane surface. The cake/gel layer on the membrane surface was perfectly removed by granular or sponge carriers. However, the deterioration of the filterability of the mixed liquor suspensions was significant with granular carriers, leading to the evolution of physically irreversible fouling, whereas such deterioration was insignificant with the sponge carrier. The characteristics of the soluble microbial products (SMP) significantly varied depending on the types of carriers used, which could influence the filterability of mixed liquor suspensions and the development of irreversible membrane fouling.

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Effect of carriers on sludge characteristics and mitigation of membrane fouling in attached-growth membrane bioreactor

Cited by 50 publications

References 32 publications

Membrane bioreactors – A review on recent developments in energy reduction, fouling control, novel configurations, LCA and market prospects

Membrane bioreactors – A review on recent developments in energy reduction, fouling control, novel configurations, LCA and market prospects

Mitigated membrane fouling of anammox membrane bioreactor by microbiological immobilization

Influence of different biofilm carriers on the operation and membrane fouling of submerged membrane bioreactors

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