अंग्रेजी
Membranes, Resins & Materials for water desalination, water purification and separation processes
Application Uses
Removing fluoride from groundwater using alumina
Salient Technical Features
Advantages over earlier attempts:
- Easy to setup: Setup involves flow under gravity from a height difference of 3 feet.
- Fast Process: Flow rate of water treated is 45 LPH for 1 kg alumina, ~15x.
- Safe Chemicals: Safe chemicals were used for all steps.
- Cyclic & Single Reactor: All the steps involved in 3 cycles i.e. pre-treatment of alumina, fluoride removal from water, and regeneration of alumina were performed inside a single reactor.
TRL
Scale of Development:
(Tested at laboratory for 150 L water batch. Patented and mechanism published)
Business scope & opportunity
This process can be used to upgrade community level alumina based defluoridation plants
Environment Considerations
NA. Process employs safer versions of earlier used chemicals.
Status of Licensing
Status Commercialization
Major Raw Materials Needed
Alumina (suitable for defluoridation)
Major Plant Equipment
Overhead or any other tank at 4 feet height and pump for filling water;
Techno-Economics
Costing estimated for 2000 L of treated water per day
- Total investment cost for alumina, overhand tank, pump, and pipes - ₹13,000
- Raw material cost per day 2000 L- ₹781
- Alumina to be used as procured (1 kg - ₹100)
- Regeneration via acid/base, produce solution discarded
- Fluoride in treated water <1.5 ppm
- Regeneration capacity is ~ 100%
Technology Package
Process for alumina suitable for deflouridation; Demonstration of the process; Know-how license fee details can be obtained on request
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