Product/Process:
Manufacture of Terafil (terracotta water filtration disc)
Application/use:For filtration of turbid water from pond, lake, river
etc. to get clean drinking water.
Salient Features
of Process/Technology : The burnt clay disc, named
'Terafil' can be fabricated by a village potter using red
clay, sand, raw dust and the potter's kiln.
It is fitted at the bottom of a suitable
domestic water pot or chamber. The raw water with turbidity
upto 100 NTU is filled into the container while filtered clean
water is collected at the bottom @21/hr. The quality of filtered
water meets BIS and WHO standards. The Terafil disc costs
about Rs.30 and can be used upto 5 years.
Status of Commercialisation:
Commercialised.
Minimum Economic
Unit Size: 500 disc/day
Indicative cost/unit:
Rs. 4 lakh
Equipment and
Machinery: Usual pottery equipment and firing kiln
Raw Materials
: Red clay, sand, sawdust etc.
For further information please contact:
The Director
Regional Research Laboratory,
Sachivalaya Marg, Bhubaneswar- 751 013