Treat Waste Water by Membrane Filtration Process

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Membrane Filtration Removal of Pesticides or
De-Salination of Salt Water
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Membrane Filtration Membrane filtration is
physical separation of a substance by means of a
semi-permeable membrane. The presence of a
gradient, i.e. a propelling force, across the
membrane drives the process. The propelling force
can be electrical, chemical or may use pressure.
This force pushes the smallest molecules (the
substances' "building blocks") in a given
solution through the membrane and keeps back the
larger molecules.
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• Applications
• De-Salination of Salt Water.
• Purification of drinking water (e.g. removal of
  pesticides)
• The food-processing industry.
• The electronics industry (production of
  ultra-pure water).
• The pharmaceuticals industry.
• The petrochemical industry.

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• Types of membrane filtration
• Membrane filtration is divided into the following
  four types, depending on the size of the
  molecules to be filtered
• Micro filtration (MF)
• Ultra filtration (UF
• Nano-filtration (NF)
• Reverse Osmosis (RO)

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• Types of membrane Modules
• Membrane filtration modules are available in many
  designs. The four most important types of module
  are
• Tubular Module
• Hollow fiber module
• Spiral wound module
• Plate Frame module

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