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

Title of Process/ Know-how/ Product/Design/Equipment

Flat sheet thin film composite (TFC) reverse osmosis membrane and spiral module making technology for brackish & seawater desalination including bio-degradation of organic effluent stream generated in the membrane process development

Application/Uses/Problem being addressed

Sea and brackish water desalination; treatment of wastewater containing aprotic polar solvents: DMF, DMAc and NMP

Salient Technical Features including Competing Features/ Impact

High flux and high salt rejecting antifouling membrane. Simple biodegradation of DMF (up to 30000 ppm within 48 h), DMAc and NMP (up to 10000 ppm within 96-120 h) contaminated water

TRL Level & Scale of Development:
TRL 9

For brackish water desalination membrane: TRL9

For sea water desalination membrane: TRL5

For effluent biodegradation: TRL4

Business scope & opportunity (in terms of scale, cost, market etc.):

The BWRO membrane technology is commercialized.

The seawater membrane technology is ready for demonstration at 100 m2 batch.

The effluent treatment technology is ready for demonstration at bench scale

Environmental Considerations:

Eco-friendly

Status of Licensing:
Ready for licensing

BWRO membrane technology know-how transferred to-

  • Uniqflux membranes LLP, Pune
  • OM TECH, Rajkot
  • Rinzai Hydratech Pvt. Ltd.
  • Status of Commercialization:
    Commercialized

    -

    Major Raw Materials Needed

    Fabric, Polymer, Solvents, Water, Chemicals

    Major Plant Equipment and Machinery Required

    Membrane casting/coating machine; module rolling machines; membrane/module testing plant

    Techno-Economics

    Depends on the proposed capacity

    Technology Package
  • Fabrication of ultrafiltration membrane
  • Fabrication of thin film composite RO membranes for brackish water and or seawater desalination
  • Effluent treatment (optional)
  • Module making