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Membranes, Resins & Materials for water desalination, water purification and separation processes
Application Uses

Separation of oil-in water emulsion and removal of pathogens under low applied pressure (5 psi)

Salient Technical Features

Antifouling ultrafiltration membrane can separate oil-in water emulsion such as soybean oil-in-water (>99%) and hexadecane-in-water emulsion (>40 nm to 20 micron droplet size) under low applied pressure (5 psi) and can be regenerated by washing with water.

TRL
TRL 4
Scale of Development:

-

Business scope & opportunity

Water containing emulsified oil (bout 0.5-1%) could be separated under low applied pressure for further treatment with other membrane depending on feed composition. The process is scalable. Cost of per m2 membrane=Rs. 600-700 (approximate)

Environment Considerations

Generation of water containing DMF

Status of Licensing
Not yet licensed
Status Commercialization
Not applicable
Major Raw Materials Needed

Polyvinylidenefluoride, poly(vinylpyrrolidone), 4-chloromethyl styrene, methylmethacrylate and polyethyleneimine

Major Plant Equipment

Membrane casting machine, module making machine, and a tank for reaction

Techno-Economics

Membrane casting machine, module making machine, and a tank for reaction

Technology Package
  • Preparation of membrane which includes synthesis of copolymer, preparation of casting solution, preparation and post modification of the membrane.
  • Assessment of membrane performance.
  • Demonstration of separation of oil-in-water emulsion
  • Washing process for membrane regeneration
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