Modeling of the Permeate Flux during Microfiltration of BSA-Adsorbed Microspheres in a Stirred Cell

Choi, Sung Wook; Yoon, Jeong Yeol; Haam, Seok Jin; Jung, Jihye; Kim, Jung Hyun; Kim, Woo Sik

doi:10.1006/jcis.2000.6940

Cited by 28 publications

(12 citation statements)

References 28 publications

(24 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The main equation of the TMP predictor is Darcy's law, which connects the permeate flow and the TMP by introducing a dynamic resistance for the membrane unit. A commonly used model is the 'resistance-in-series-model' introduced by Choi et al (2000):…”

Section: Advanced Dynamic Simulation Modelmentioning

confidence: 99%

An advanced simulation model for membrane bioreactors: development, calibration and validation

Ludwig

Gaida

Keysers

et al. 2012

Water Science and Technology

View full text Add to dashboard Cite

Membrane wastewater treatment plants (WWTPs) have several advantages compared with conventionally designed WWTPs with classical purification techniques. The filtration process is the key to their commercial success in Germany with respect to energy consumption and effectiveness, enabled by the optimization of filtration using a dynamic simulation model. This work is focused on the development of a robust, flexible and practically applicable membrane simulation model for submerged hollow-fibre and flat-sheet membrane modules. The model is based on standard parameters usually measured on membrane WWTPs. The performance of the model is demonstrated by successful calibration and validation for three different full-scale membrane WWTPs achieving good results. Furthermore, the model is combinable with Activated Sludge Models.

show abstract

Section: Advanced Dynamic Simulation Modelmentioning

confidence: 99%

An advanced simulation model for membrane bioreactors: development, calibration and validation

Ludwig

Gaida

Keysers

et al. 2012

Water Science and Technology

View full text Add to dashboard Cite

show abstract

“…In addition, R ad can be expressed as an exponential function of the steadystate adsorption and concentration polarization resistance and the rate at which foulant molecules are deposited on the membrane [12,36]. Therefore, Eq.…”

Section: Combined Modelmentioning

confidence: 99%

“…Similarly, Cassano et al [11] established that the fouling mechanism involved in the crossflow UF of blood orange juice with a tubular polyvinylidenefluoride (PVDF) membrane evolved from a partial to a complete pore blocking in dependence of the axial feed velocity. Choi et al [12] applied a resistance-in-series model to the MF of bovine serum albumin (BSA) taking into account the membrane resistance, the gel layer resistance and the fouling resistance due to the foulant deposits inside the membrane pores. They obtained good agreement with the experimental data recorded.…”

Section: Introductionmentioning

confidence: 99%

Destabilization and removal of immobilized enzymes adsorbed onto polyethersulfone ultrafiltration membranes by salt solutions

Corbatón-Báguena

Gugliuzza

Cassano

et al. 2015

Journal of Membrane Science

View full text Add to dashboard Cite

ElsevierCorbatón Báguena, MJ.; Cassano, A.; Giorno, L. (2015). Destabilization AbstractIn this work the effectiveness of two saline solutions (NaCl and Na 2 SO 4 ) to clean a permanently hydrophilic polyethersulfone (PESH) ultrafiltration (UF) membrane with a molecular weight cut-off (MWCO) of 30 kDa previously fouled with enzymatic solutions 2 was investigated. The influence of protein concentration in the enzymatic solution during the fouling step and the effect of salt type during the cleaning procedure were studied.The protein aggregation was analysed in solution and onto the membrane surface by using several techniques including Dynamic Light Scattering (DLS), Atomic Force Microscopy (AFM) and Infrared Spectroscopy with Attenuated Total Reflectance (ATR-FTIR). In addition, mechanisms that dominate membrane fouling were studied by fitting some mathematical models (Hermia's models adapted to crossflow filtration, a combined model based on the complete blocking and cake formation equations and a resistance-in-series model) to the experimental data.Fouling results showed that the complete blocking/adsorption on membrane surface was the predominant fouling mechanism. Regarding the cleaning results, higher cleaning efficiency and low residual protein concentration was obtained with NaCl solutions for all the feed solutions tested due to the favourable interaction between Cl -and proteins.

show abstract

“…The simulator then tracks the formation of a cake or gel layer on the surface of the membrane that resists the liquid flux across the membrane. The cake layer is assumed to be homogeneous and its thickness is calculated as shown below using the following equation (Choi et al, 2000):…”

Section: Theory and Mbr Filtration Modelmentioning

confidence: 99%

“…The resistance model is the oldest and widely used which is based on the cake filtration theory (Choi et al, 2000). A number of approaches exist to estimate the cake and fouling resistance without direct measurements which have been experimentally validated (Psoch and Schiewer, 2006).…”

Section: Introductionmentioning

confidence: 99%

Dynamic Longterm In-Series Resistance Modeling and Analysis of a Submerged Membrane Bioreactor Using a Novel Filtration Mode

Sarioglu¹,

İnsel²,

Orhon³

2011

proc water environ fed

View full text Add to dashboard Cite

This study is focused on the physical filtration characteristics of a flatsheet membrane bioreactor (MBR) operated under a novel filtration mode. The objective of this research was to demonstrate the possibility of running a membrane bioreactor with high MLSS concentration for prolonged periods without frequent blocking of the membranes. Current MBR designs mostly dictated by the manufacturers limit the level of MLSS that is taken as a basis for the design due to fouling problems. This restraint can be eliminated by applying higher shear rates and hence aeration intensity for the effective removal of cake layer from the surface of the membranes. A pilot scale MBR was setup at the inlet works of a domestic sewage treatment plant and was operated for 320 days. The system was operated continuously with an MLSS concentration of 13,000-16,000 mg/L for 285 days without the need for chemical cleaning. The apparent viscosity of the sludge was steady at 0.001 Pa.s throughout the study except for the period when there was no sludge wastage and the resultant viscosity reached almost 0.004 Pa.s. Resistance components were experimentally determined and compared against the results of dynamic long-term simulations using the inseries resistance model. It was found that cake resistance did not have major impact on the total resistance which was linked to the effective daily removal due to high shear rates. Intrinsic membrane resistance and fouling resistance were the main components contributing to total resistance having the fractions of 69% (R m /R t ) and 30% (R f /R t ) respectively.

show abstract

Modeling of the Permeate Flux during Microfiltration of BSA-Adsorbed Microspheres in a Stirred Cell

Cited by 28 publications

References 28 publications

An advanced simulation model for membrane bioreactors: development, calibration and validation

An advanced simulation model for membrane bioreactors: development, calibration and validation

Destabilization and removal of immobilized enzymes adsorbed onto polyethersulfone ultrafiltration membranes by salt solutions

Dynamic Longterm In-Series Resistance Modeling and Analysis of a Submerged Membrane Bioreactor Using a Novel Filtration Mode

Contact Info

Product

Resources

About