Dynamic microfiltration with a vibrating hollow fiber membrane module: Filtration of yeast suspensions

Beier, Søren; Guerra, Maria Madalena Pessoa; Garde, Arvid; Jonsson, Gunnar Eigil

doi:10.1016/j.memsci.2006.03.051

Cited by 90 publications

(94 citation statements)

References 9 publications

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“…The unsteady-state shear induced by vibration can be related to performance enhancement to provide a quantitative assessment of the beneficiation [123]. Beier and coworkers [229][230][231] Figure 4 shows that both higher amplitudes and higher frequencies for longitudinal vibration contribute towards fouling mitigation, with an observed reduction in the fouling rate by as much as 90% [23]. Genkin et al [224] found that the critical flux has a stronger dependency on frequency at higher frequencies but a weaker dependency at lower frequencies, presumably due to a change of the flow regime in the vibrating system.…”

Section: Vibrationsmentioning

confidence: 99%

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

et al. 2017

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Abstract:The submerged membrane filtration concept is well-established for low-pressure microfiltration (MF) and ultrafiltration (UF) applications in the water industry, and has become a mainstream technology for surface-water treatment, pretreatment prior to reverse osmosis (RO), and membrane bioreactors (MBRs). Compared to submerged flat sheet (FS) membranes, submerged hollow fiber (HF) membranes are more common due to their advantages of higher packing density, the ability to induce movement by mechanisms such as bubbling, and the feasibility of backwashing. In view of the importance of submerged HF processes, this review aims to provide a comprehensive landscape of the current state-of-the-art systems, to serve as a guide for further improvements in submerged HF membranes and their applications. The topics covered include recent developments in submerged hollow fiber membrane systems, the challenges and developments in fouling-control methods, and treatment protocols for membrane permeability recovery. The highlighted research opportunities include optimizing the various means to manipulate the hydrodynamics for fouling mitigation, developing online monitoring devices, and extending the submerged HF concept beyond filtration.

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Section: Vibrationsmentioning

confidence: 99%

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

et al. 2017

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“…Furthermore, improving the hydrodynamics can also be performed by applying dynamic membrane systems (Altaee et al, 2009;Beier et al, 2006;Bilad et al, 2012a;Genkin et al, 2006;Jaffrin, 2008 All types of pressure driven membranes have been used in lab-scale MBRs, but only MF and UF membranes are used so far in full-scales (Judd, 2008). The application of NF and RO in MBRs was driven by the motivation to realize a single process for direct water re-use purposes.…”

Section: Hydrodynamicsmentioning

confidence: 99%

“…These systems also have other drawbacks, such as apparatus complexity, high tendency of the apparatus to breakdown at the moving parts, and most systems have a very low packing density that leads to very high costs per membrane area. (Beier et al, 2006) Currently, only relatively low numbers of existing DFS are available in the full-scale applications. However, the new generation of commercial DFSs, such as vibratory shearenhanced processing systems (VSEP) that minimize energy consumption by using the resonance frequency, are expected to present a low specific energy per volume of permeate in a large industrial module, as the power consumption of the vibrating elements is almost independent of the membrane area.…”

Section: Mf (Westfalia Separator)mentioning

confidence: 99%

“…The VSEP system was only used to filter an activated sludge solution and showed a low fouling tendency (Low et al, 2009). The VHFM system was tested using a yeast solution (Beier et al, 2006;Genkin et al, 2006) and an activated sludge solution (Altaee et al, 2009) in shortterm. Only the HUBER vacuum rotation membrane, Fraunhofer Rotating disk filter and Grundfos BioBooster have been commercialized in the full-scale applications.…”

Section: Dfss In Mbrsmentioning

confidence: 99%

“…The skin layer is located at the outside of the fibers, thus the permeate is sucked from the outside to the inside of the fibers. The membrane modules are vibrated in a vertical motion at different frequencies (0-30 Hz) and different amplitudes (0.2-4 cm) (Altaee et al, 2009;Beier et al, 2006;Genkin et al, 2006). This type of DFS has recently been applied in the lab-scale submerged MBRs.…”

Section: Vibrating Hollow Fiber Modules (Vhfm)mentioning

confidence: 99%

See 2 more Smart Citations

Membrane bioreactor for domestic wastewater treatment: principles, challanges and future research directions

Bilad

2017

IJOST

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Membrane bioreactors (MBRs) have recently become widely accepted as an advanced technology for treatment of domestic and industrial wastewaters. The objective of this review is to provide overview on MBR technology for wastewater treatment application. It includes discussions on the fundamental, core problems (membrane fouling), recent effective development approach (dynamic filtration systems) and future research direction of MBRs. Since MBRs integrate a conventional activated sludge process with membrane filtration, and both fundamental aspects are discussed first. Later, a comprehensive discussion about membrane fouling, the main problems in MBR, is provided, including fouling control strategies. The discussion on the MBR membranes and relation between membrane properties and MBR performance is also provided. This review also includes one of the most promising MBR technologies that specifically design to manage membrane fouling: dynamic filtration systems. Lastly, insight into an approach to address MBRs challenges and recent research and developments are provided.

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Fouling in Membrane Bioreactors

Kola

Chen

2013

Encyclopedia of Membrane Science and Technology

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Membrane bioreactors (MBRs) have become increasingly popular in water and wastewater treatment as an alternative to the conventional activated sludge process. However, membrane fouling is still a key issue in the MBR system that significantly influences the system operation and maintenance cost. In this paper, key factors influencing membrane fouling are reviewed and discussed. The fundamental fouling mechanisms of the MBR system are explored via analyzing different fractions of the MBR feed solution and their corresponding fouling propensities. With the aid of fouling layer fractionation and advanced characterization techniques, the preferential deposition of different foulants is clearly highlighted. Furthermore, different operation conditions and parameters for fouling limitation and removal are reviewed and compared.

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Dynamic microfiltration with a vibrating hollow fiber membrane module: Filtration of yeast suspensions

Cited by 90 publications

References 9 publications

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

Membrane bioreactor for domestic wastewater treatment: principles, challanges and future research directions

Fouling in Membrane Bioreactors

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