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  3. Structure of membrane modules
What is membrane filtration?


What is membrane filtration?

What is a hollow fiber membrane?

A hollow fiber membrane consists of straw-shaped hollow fibers with porous walls, which serve as a separation membrane. There are various implemented membranes, which mutually differ in the shape of the porous body, such as reverse osmosis (RO), ultrafiltration (UF), and microfiltration (MF) membranes.

Among Microza products, hollow fiber UF membrane modules and hollow fiber MF membrane modules are available.

What is hollow fiber membrane filtration?

Filtration using a hollow fiber membrane is called hollow fiber membrane filtration. The filtration method is used for water treatment, such as water purification and wastewater treatment, as well as in industrial processes such as in the fields of food and pharmaceuticals.
The main advantages of using hollow fiber membrane for filtration include:

  • Filtration facility can be downsized because the area of filtration membrane per unit volume can be increased,
  • Filtration can be performed continuously while controlling clogs on the membrane surface by using cross-flow filtration, where the solution flows parallel to the membrane surface during filtration,
  • Continuous filtration is possible by regularly removing foulant accumulated on the membrane surfaces via backwashing, which is difficult in a flat-sheet membrane,
  • Unlike sand or diatomite filtration, the precision of filtration is always constant, enabling stable filtration quality.
  • Unmanned operation is possible by automating the membrane filtration facility.

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separation technology?

Information on other separation technologies

Differences and characteristics of separation technologies

The characteristics of separation technologies used for solid-liquid separation, including membrane filtration, are summarized.

What is membrane separation?

Classification of membrane filtration and target components are explained.

Structure of membrane modules

Membrane filtration, one of the separation technologies, will be briefly explained.

Principles of membrane separation

Separation methods that use pressure difference are outlined.

What is cross-flow filtration?

See here for the differences between dead-end filtration and cross-flow filtration.

Membrane function

Brief examples of membrane separation technology applications for each membrane type.