 Ash utilization is one of the key concerns at NTPC. The Ash Utilization Division, set up in 1991, strives to derive maximum usage from the vast quantities of ash produced at its coal-based stations. The division proactively formulates policy, plans and programme for ash utilization. It further monitors the progress in these areas and works at developing new fields of ash utilization.
The quality of ash produced conforms to the requirements of IS 3812. The fly ash generated at NTPC stations is ideal for use in cement, concrete, concrete products, cellular concrete, lightweight aggregates, bricks/blocks/tiles etc. This is attributed to its very low loss on ignition value. To facilitate availability of dry ash to end-users all new units of NTPC are provided with the facility of dry ash collection system. Partial dry ash collection systems have also been set up at the existing stations where these facilities did not exist earlier. Augmentation of these systems to 100% capacity is presently in progress.
As the emphasis on gainful utilization of ash grew, the usage over the years also increased. From 0.3 million tonnes in 1991-1992, the level of utilization during 2006-07 stood at over 20.76 million tonnes.
Click Here for Availability of Ash at NTPC Stations.
| Area
of Utilization |
Quantity
(in Million Tons) |
| Land
Development |
7.51 |
| Cement
& Concrete |
7.40 |
| Roads/Embankments |
1.76 |
| Ash
Dyke Raising |
2.69 |
| Bricks |
0.15
|
| Mine Filling |
0.61 |
| Others |
0.64 |
| Total |
20.76 |
NTPC has
adopted user friendly policy guidelines on ash utilisation. These
include actions identified for:
| i)
|
Ash
Collection & Storage System
|
| ii)
|
Facilities
& Incentives to users
|
| iii) |
Direct
Department Activities
|
| iv)
|
Administrative
& Financial aspects. |
|
 |
In order to motivate entrepreneurs to come forward
with ash utilisation schemes, NTPC offers several facilities and
incentives. These include free issue of all types of ash viz. Dry
Fly Ash / Pond Ash / Bottom Ash & infrastructure facilities,
wherever feasible. Necessary help and assistance is also offered
to facilitate procurement of land, supply of electricity etc. from
Govt. Authorities. Necessary techno-managerial assistance is given
wherever considered necessary. Besides NTPC uses only ash based
bricks & portland pozzolana cement (FAPPC) in most of its construction
activities. FAPPC (as per IS 1489 Part-1) and Fly Ash Bricks (as
per IS 12894) have been included in our standard specifications.
Demonstration projects are taken up in area of Agriculture, Building
materials, Mine filling etc.
MAJOR
INITIATIVES TAKEN BY NTPC TOWARDS ASH UTILIZATION
NTPC
continually strives to evolve innovative and diverse means of
ash utilization to further broaden the scope. Prominent among
the methods devised so far are:
|
|
|
| NTPC GUIDE FOR USERS OF COAL ASH |
 |
NTPC, Ash Utilization Division has brought out a booklet titled 'NTPC Guide for Users of Coal Ash' for distribution amongst prospective entrepreneurs and users of ash. It covers salient information about NTPC's power stations, facilities offered for setting up of ash based industry, statistics about ash production and its quality, brief write-up about various technologies available for utilization of ash, list of equipment manufacturers, technology suppliers, agencies who may be approached for setting up the projects etc.
Other Promotional literature printed for distribution includes Brochures titled:
 |
Ash
a Resource |
 
|
|
Eco-Friendly
Bricks for new Millennium |
|
|
Flyash
based Portland Pozzolana Cement |
|
|
Coal
ash Environment friendly material for fills, Embankments and
Road pavement construction |
|
Besides, literature related to Cement Concrete
& Fill Material has also been compiled and is available in a
booklet form.
A documentary film, titled 'Coal ash as a
Fill Material', has also been produced covering use of ash in
construction activities of NOIDA-Gr.NOIDA Expressway, Delhi Metro
Rail Corporation, Sarita Vihar Flyover (in Delhi) etc.
Persons interested to collect the above-mentioned
printed material/film may contact Head, Ash Utilization Division
at the address mentioned below.
WHOM
TO CONTACT
Interested parties may contact Head, Ash Utilization
Division or respective General
Managers of projects for lifting of ash or for setting
up of ash based industry near NTPC stations. HEAD,
ASH UTILISATION DIVISION
NTPC Ltd.
A-11, 1st Floor, NFL Premises
Sector-24, NOIDA - 201301
E-mail: ash@ntpc.co.in
Phone: 0120 - 2412745
Fax: 0120 - 2411962
|
