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Report
of the Expert Group on Utilization of Fly Ash in Cement Industry
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Foreword
Flyash is an inescapable solid waste generated
in enonnous quantity from coal based power plants, which is dumped
in the lagoons in the slurry fonn. The generation and disposal of
tlyash lead to various types of pollution problems. Emission of
tlyash from stacks causes air pollution and when dumped into lagoons
it causes water pollution. The present disposal practice requires
large area; as a result a large part of land is wasted.
Some research organisations like the Central Fuel Research Institute
(CFRI) and the Central Power Research Institute (CPRI) have developed
technologies for utilisation of flyash in brick manufacturing and
aggregates. In the recent past many new areas have been explored
forutilisation of flyash notably in cement manufacturing industries
and as a fertiliser in farming etc.
To
promote utilisation of flyash in cement manufacturing, the Central
Pollution Control Board set up an Expert Group under the Chairmanship
of Shri D. S. Tiwari, Ex-Chairman, Madhya Pradesh
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Pollution Control Board. This Group has reviewed the existing status
and recommended various possibility for utilisation of flyash.
The contribution made by Sh. D. S. Tiwari, Chairman of the expert
group, and members of his team, is gratefully acknowledged. Dr. B.
Sengupta, Senior Scientist, coordinated with the expert group activities.
Sh.P .KGupta ,AEE, and Sh.A.KChaturvedi, AEE, organised the meetings
of the exprt group and prepared the draft report. Ms. Meena, and Sh.
Umesh Gupta, Stenographers, typed the manuscript.
We hope that this report will be useful to the Cement Industry, Thermal
Power Plants, the regulatory agencies and others concerned . |
Dilip Biswas
Chairman,
CPCB
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