Flow investigation in an innovating dynamic filtration module using tracing methods

Xie, Xiaowen; André, Christophe; Dietrich, Nicolas; Schmitz, Philippe; Fillaudeau, Luc

doi:10.1016/j.seppur.2019.05.098

Cited by 5 publications

(3 citation statements)

References 25 publications

(31 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For local approach, Xie [260] has investigated the local shear stress with PIV measurements at the static walls in RVF module (rotating system, type 6). Considering the angular momentum balance, the torque along the rotor is equal to the torque on the surrounded housing.…”

Section: Mechanical Powermentioning

confidence: 99%

Extensive review about industrial and laboratory dynamic filtration modules: Scientific production, configurations and performances

Cheng

Xie

Schmitz

et al. 2021

Separation and Purification Technology

Self Cite

View full text Add to dashboard Cite

Section: Mechanical Powermentioning

confidence: 99%

Extensive review about industrial and laboratory dynamic filtration modules: Scientific production, configurations and performances

Cheng

Xie

Schmitz

et al. 2021

Separation and Purification Technology

Self Cite

View full text Add to dashboard Cite

“…Especially, Amini et al 31 studied RTD in a full-size biomembrane reactor and found that the system was closer to plug flow conditions when the flow rate at the inlet was large, the liquid viscosity was low, and the gas inlet was at the bottom inlet. Xie et al 32 found that the dead zone and effective mixing zone in the device were independent of the rotating speed and flow rate in a laminar state but only related to the rotating speed in a turbulent state in a rotating disk filtration module.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on the Residence Time Distribution in a Stirred Membrane Reactor

Hui

Duan

Mao

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The residence time distribution (RTD) of a reactor is a key factor related to the actual reaction time of reactants, by which the mixing in a reactor can be judged indirectly. Though many efforts have been made to study RTD in stirred tank reactors (STs) or membrane modules, research on RTD in a stirred membrane reactor (SMR) is still lacking. For this purpose, we investigated the influence of operating conditions on mixing in the SMR through experiments, obtained non-ideal mixing region by mathematical model fitting, and analyzed the flow field combined with CFD simulation. The critical value of the ratio of the discharge of impeller to the flow rate is 13.13 designed to reach ideal mixing in the SMR and that of the ratio of the mean residence time to the mixing time is 10 correspondingly. In addition, the RTD is independent of membrane permeability resistance.

show abstract

“…The findings suggest the importance of shear across the membrane in minimizing the effects of concentration polarisation. The efficiency of dynamic filtration has also been proven through simulation studies scrutinizing the system's feasibility [26,27]. Membrane module rotation could also achieve a dynamic system [28].…”

Section: Introductionmentioning

confidence: 99%

A Rotary Spacer System for Energy-Efficient Membrane Fouling Control in Oil/Water Emulsion Filtration

et al. 2022

View full text Add to dashboard Cite

Membrane fouling deteriorates membrane filtration performances. Hence, mitigating membrane fouling is the key factor in sustaining the membrane process, particularly when treating fouling-prone feed, such as oil/water emulsions. The use of spacers has been expanded in the membrane module system, including for membrane fouling control. This study proposed a rotating spacer system to ameliorate membrane fouling issues when treating an oil/water emulsion. The system’s effectiveness was assessed by investigating the effect of rotating speed and membrane-to-disk gap on the hydraulic performance and the energy input and through computational fluid dynamics (CFD) simulation. The results showed that the newly developed rotary spacer system was effective and energy-efficient for fouling control. The CFD simulation results proved that the spacer rotations induced secondary flow near the membrane surface and imposed shear rate and lift force to exert fouling control. Increasing the rotation speed to an average linear velocity of 0.44 m/s increased the permeability from 126.8 ± 2.1 to 175.5 ± 2.7 Lm−2h−1bar−1. The system showed better performance at a lower spacer-to-membrane gap, in which increasing the gap from 0.5 to 2.0 cm lowered the permeability from 175.5 ± 2.7 to 126.7 ± 2.0 Lm−2h−1bar−1. Interestingly, the rotary system showed a low energy input of 1.08 to 4.08 × 10−3 kWhm−3 permeate when run at linear velocities of 0.27 to 0.44 ms−1. Overall, the findings suggest the competitiveness of the rotary spacer system as a method for membrane fouling control.

show abstract

Flow investigation in an innovating dynamic filtration module using tracing methods

Cited by 5 publications

References 25 publications

Extensive review about industrial and laboratory dynamic filtration modules: Scientific production, configurations and performances

Extensive review about industrial and laboratory dynamic filtration modules: Scientific production, configurations and performances

Experimental and Numerical Study on the Residence Time Distribution in a Stirred Membrane Reactor

A Rotary Spacer System for Energy-Efficient Membrane Fouling Control in Oil/Water Emulsion Filtration

Contact Info

Product

Resources

About