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Related Concept Videos

Filtration00:53

Filtration

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Filtration is a physical separation process that involves passing a suspension through a porous medium to separate solids from fluids. During filtration, solids collect on the porous medium while liquids, also collectively known as the filtrate, pass through. The filtration medium is selected based on the filtration purpose, quantity, and nature of the precipitate. The general criteria for a suitable filtering medium are that it is inert, mechanically strong, nonabsorbent toward dissolved...
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Glomerular Filtration01:15

Glomerular Filtration

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The filtration membrane in the renal system is a highly specialized structure essential for filtering blood. It consists of glomerular capillaries and podocytes, forming a selective barrier that permits the passage of water and small solutes while restricting most plasma proteins and blood cells.
Components of the Filtration Membrane
The filtration process involves three key layers: the glomerular endothelial cells, the basement membrane, and the podocyte-formed filtration slits.
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Three-Dimensionally Printed Microfluidic Cross-flow System for Ultrafiltration/Nanofiltration Membrane Performance Testing
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Influence of Membrane Vibration on Particles Rejection Using a Slotted Pore Membrane Microfiltration.

Asmat Ullah1, Kamran Alam2, Saad Ullah Khan2

  • 1Department of Chemical Engineering, University of Engineering and Technology Peshawar, Peshawar 25000, Pakistan.

Membranes
|September 26, 2021
PubMed
Summary
This summary is machine-generated.

Membrane oscillation enhances microfiltration performance by reducing fouling and increasing oil rejection. This method significantly lowers oil concentration in permeate, proving effective for produced water treatment.

Keywords:
membrane foulingmembrane oscillationoil water separationshear rateslotted structure membrane

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Area of Science:

  • Chemical Engineering
  • Materials Science
  • Environmental Engineering

Background:

  • Microfiltration is crucial for water treatment, but membrane fouling and low separation efficiency limit its application.
  • Traditional methods struggle with effective oil-water separation in produced water, necessitating innovative solutions.

Purpose of the Study:

  • To introduce and validate a novel microfiltration method using membrane oscillation to enhance oil rejection and reduce fouling.
  • To develop a mathematical model for the fluid dynamics around an oscillating membrane and validate it experimentally.

Main Methods:

  • Utilizing newly developed microfiltration membranes with slotted pores.
  • Applying controlled membrane oscillations to the membrane surface.
  • Developing an exact mathematical solution for the flow dynamics outside the oscillating membrane.
  • Conducting experimental oil-water separation tests in produced water treatment.

Main Results:

  • Membrane oscillation induced a lift velocity, repelling oil particles and reducing membrane fouling.
  • Separation efficiency significantly increased, with a four-fold reduction in oil concentration in the permeate at 25 Hz oscillation frequency.
  • The applied shear rate from oscillation effectively minimized pore blockage.

Conclusions:

  • Membrane oscillation is a highly effective strategy for improving microfiltration performance in oil-water separation.
  • The developed mathematical model accurately predicts the behavior of oscillating membranes.
  • This technique offers a promising advancement for efficient and cleaner produced water treatment.