Screen Reader Access

E-COURSE
ON
VULNERABILITY ATLAS
OF INDIA
  From the Desk of Executive Director

read more
  New Initiatives : Emerging Technologies
 
E-Tender for Construction of Demonstration Housing Project using Emerging technology at Alwar, Rajasthan under PMAY-U 2.0 Nomination for Subhash Chandra Bose Aapda Prabandhan Puraskar E-Tender for Construction of Demonstration Housing Project using Emerging technology at Villianur, Puducherry under PMAY-U 2.0 TB Mukt Bharat Abhiyan - 100-days campaign on TB elimination
 

 

 

Sources of Phosphogypsum

 Phosphogypsum is generated as a by-product of the phosphoric acid based fertiliser industry. The interaction of ground phosphate rock with sulphuric acid produces 10-40% free moisture along with phosphogypsym. 4.5 million tonnes is generated per year in India. Over 10 million tonnes has accumulated at plant sites.

 

Nature of Pollution

The fluoride content of phosphogypsum causes land and water pollution.

 

Recycling of Phosphogypsum

This pollutant by-product from the fertiliser industry can be used to make several building materials:

 

 

Ø  Gypsum plaster, boards, tiles.

Ø  As set controller in the manufacture of Portland cement.

Ø  Non-shrinking cement, super sulphated/anhydride cement.

Ø  As a hydraulic binder.

Ø  As mineraliser.

Ø  Simultaneous manufacture of cement and sulphuric acid.

Ø  Artificial marble, fibre boards.

 

 

 

 
 
Creating Enabling Environment for Affordable Housing for All…… since 1990
 
Home l BMTPC mail l Feedback l Site Map
Designed & developed by: . All rights reserved by: BMTPC