Efforts of NTPC for Ash Utilization - India Core
Efforts of NTPC for Ash Utilization - India Core
Efforts of NTPC for Ash Utilization - India Core
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Welcome to the Presentation on<br />
<strong>NTPC</strong> <strong>Ef<strong>for</strong>ts</strong><br />
To<br />
Enhance<br />
<strong>Ash</strong> <strong>Utilization</strong><br />
Council <strong>of</strong> Power Utilities V.K.Mathur<br />
Delhi Addl. General Manager & Head<br />
(<strong>Ash</strong> <strong>Utilization</strong> Division)<br />
<strong>NTPC</strong> / NOIDA<br />
29.01.2010
Presentation Overview<br />
• What is <strong>Ash</strong>?<br />
• <strong>NTPC</strong>’s <strong>Ef<strong>for</strong>ts</strong> to Enhance <strong>Ash</strong> <strong>Utilization</strong>
Did you know that coal ash is like<br />
a type <strong>of</strong> Soil?
Fly <strong>Ash</strong> Perceptions<br />
‣Not a ‘Naturally occurring’ Material<br />
‣Industrial waste from Thermal Power Stations<br />
‣Heavy metals leachate<br />
‣Not perceived as ‘Soil’<br />
‣The fact is, fly ashisatype <strong>of</strong> Soil
Fly <strong>Ash</strong> Facts<br />
‣No Chemical Atiit Activity in <strong>for</strong>mation <strong>of</strong> Fly Ah <strong>Ash</strong><br />
‣Produced only by burning <strong>of</strong> ‘Naturally<br />
Available Material’ i.e. Coal<br />
‣Broadly speaking, Coal consists <strong>of</strong> Wood and<br />
Soil<br />
‣Wood part burns and gives energy, rest is what<br />
is termed as ‘Fly <strong>Ash</strong>’
Coal Formation
• Gravel<br />
TYPES OF Soils<br />
• Sand<br />
• Silt<br />
• Clay<br />
• Silty_<br />
Clay Etc
Parameter<br />
Fly<br />
<strong>Ash</strong>-<br />
BTPS<br />
Fly <strong>Ash</strong><br />
Rajghat<br />
Fly <strong>Ash</strong> & Soil<br />
Soil 1 Soil 2 WHO/<br />
MoEF<br />
Standard<br />
Loss on ignition, (% by mass) 4.7 3.9 5.3 5.20<br />
Chlorides (as Cl) (% by<br />
mass)<br />
0.02 0.01 0.02 0.02<br />
Sulfates (as SO4) (% by
Titanium (as TiO 2<br />
) (% by<br />
mass)<br />
Fly <strong>Ash</strong> & Soil<br />
0.7 1.8 1.9 0.70<br />
Silica (as SiO 2<br />
)(%bymass) 67.8 61.4 58.2 68.40<br />
Copper (as Cu) (mg/kg) 23 43 40 23<br />
Cadmium (as Cd) (mg/kg) 01 BDL 01 01<br />
Chromium (as Cr) (mg/kg) 55 113 115 55<br />
Zinc (as Zn) (mg/kg) 104 1.5 102 80<br />
Lead (as Pb) (mg/kg) 14 24 20 16<br />
(B) Test on 10% Water Leachates<br />
Arsenic (as As) (mg/Lt.) BDL BDL ------ BDL .01/.01<br />
Cadmium (as Cd) )(mg/Lt) BDL BDL ------ BDL .003/.01<br />
Lead (as Pb) (mg/Lt) BDL BDL ------ BDL .01/.05
<strong>NTPC</strong> EFFORTS<br />
• Dry <strong>Ash</strong> Evacuation System (DAES)<br />
• Building Products<br />
• Agriculture<br />
• Roads<br />
• Mine Filling<br />
• Research Studies<br />
• Awareness Measures
Dry <strong>Ash</strong> Evacuation System (DAES)
Dry <strong>Ash</strong> Evacuation System (DAES)<br />
• 100 % DAES in all<br />
new Plants and<br />
expansion units<br />
• 20% DAES in all<br />
existing Plants.<br />
Further augmentation<br />
depending upon<br />
requirement
Fly <strong>Ash</strong> bricks<br />
• All <strong>NTPC</strong> Stations Have<br />
Fly ash bricks making<br />
plants <strong>for</strong> demonstration<br />
purposes to encourage<br />
private enterprenuers to<br />
set up their plants<br />
• Bricks being made <strong>for</strong><br />
inhouse consumption.
Agriculture<br />
• Show case projects on use <strong>of</strong> fly<br />
ash in Agriculture re being taken up<br />
at Simhadri, Unchahar, Singrauli,<br />
Dadri & Talcher-Thermal Stations<br />
involving nearby farmers and<br />
Agriculture university.<br />
• Results at all stations are very<br />
encouraging.<br />
View <strong>of</strong> crop on ash plot at<br />
Unchahar
Road Embankment<br />
• Allhbdb Allahabad bypass road<br />
embankment construction<br />
utilized 67 Lac Cum Pond <strong>Ash</strong><br />
from Unchahar.<br />
h<br />
• Noida-Greater Noida<br />
Expressway utilized 22 Lac<br />
Cum Pond <strong>Ash</strong> from Badarpur<br />
• Low lying areas in <strong>NTPC</strong><br />
being filled with Pond ash<br />
Allahabad Bypass /<br />
Unchahar <strong>Ash</strong> pond
Mine Filling<br />
• At Talcher-Thermal, Th l ash is being filled in<br />
South Balanda Mine, utilizing about 10<br />
lakhs cum ash / annum (100%)<br />
• <strong>Ef<strong>for</strong>ts</strong> are on to take up Random filling <strong>of</strong><br />
ash along with over burden <strong>of</strong> an<br />
operating mine as a pilot study.<br />
South Balanda Mine
STUDIES / DEMONSTRATION<br />
PROJECTS
Studies / Demonstration Projects<br />
• <strong>NTPC</strong> & RDSO have signed an MoU <strong>for</strong> the study <strong>of</strong> suitability<br />
<strong>of</strong> coal ash in Railway Embankment –07.09.07<br />
A study <strong>for</strong> design <strong>of</strong> the embankment has been awarded to<br />
CRRI.<br />
To validate the design <strong>of</strong> Rail Embankment, another study<br />
has been awarded to IIT Bombay <strong>for</strong> conducting Centrifuge<br />
model tests.<br />
Khl Kahalgaon MGR -10 km has been selected d<strong>for</strong> pilot study.<br />
MGR extension / Railway siding at Talcher-Kaniha are also<br />
planned to be taken up as part <strong>of</strong> study
Centrifuge Model Testing Equipment
Studies / Demonstration Projects<br />
• High Volume Fly ash concrete road are being<br />
constructed at Dadri and Farakka –study by CRRI.<br />
• Roller compacted concrete pavement is being<br />
constructed at Ramagundam-study by CRRI.<br />
•High volumefly ash- clay bricks / tiles using flux bonded<br />
technology taken up in association with National<br />
Institute tute <strong>of</strong> Inter Disciplinary Science ce & Technology,<br />
ogy,<br />
Trivandrum at Ramagundam<br />
• Cold Setting Structural Bricks / Blocks with high volume<br />
fly ash in association with RRL Bhubaneshwar
Studies / Demonstration Projects<br />
• Use <strong>of</strong> fly ash in Bituminous Road Surfacing taken up<br />
through CRRI.<br />
Demonstration stretch shall be constructed at <strong>NTPC</strong><br />
Dadri & Badarpur.<br />
•Use<strong>of</strong>fly ash in Railway Concrete Sleepers<br />
Taken up in association with IIT Kanpur & M/S<br />
Calstar Steel Ltd. kanpur.<br />
• Use <strong>of</strong> Bottom ash in concrete block making –<br />
Taken up in association with National Council <strong>for</strong><br />
Cement & Building material, Ballabhgarh at <strong>NTPC</strong><br />
Unchahar.
AWARENESS MEASURES
AWARENESS MEASURES<br />
• Documentary Films<br />
• Workshops<br />
• Advertisements in News papers<br />
• Exhibitions<br />
• Distribution <strong>of</strong> Booklets, Pamphelets etc
AWARENESS MEASURES<br />
DOCUMENTARY FILMS<br />
1. Coal <strong>Ash</strong> –as Fill Material –2001<br />
2. Use <strong>of</strong> Fly <strong>Ash</strong> in Concrete & RMC Plants-<br />
(2004-05)<br />
05)<br />
3. Clay Fly <strong>Ash</strong> Bricks --(2005-06)<br />
4. Fly <strong>Ash</strong> Bricks --(2006-07)<br />
5. High Volume <strong>Ash</strong> Clay Bricks –(2007-<br />
08)<br />
6. Use <strong>of</strong> fly ash in mine filling –(2008-09)<br />
7 Use <strong>of</strong> Fly <strong>Ash</strong> in Agriculture(Under<br />
7. Use <strong>of</strong> Fly <strong>Ash</strong> in Agriculture(Under<br />
Production)
AWARENESS MEASURES<br />
Workshops organized by <strong>NTPC</strong>:<br />
1. Delhi PWD<br />
2. Delhi Development Authority<br />
3. Ghaziabad development Authority<br />
4. Noida Authority<br />
5. Greater Noida Authority<br />
6. Municipal Corporation <strong>of</strong> Delhi (MCD)<br />
7. New Delhi Municipal Council (NDMC)<br />
8. Hyderabad Urban Development Authority<br />
9. NHAI<br />
10. Research Designs & Standards Organization (RDSO), Lucknow<br />
11. M/S CES Delhi / Kolkata<br />
12. M/S ICT Consultant<br />
13. RITES<br />
14. World Bank<br />
15. Asian Development Bank<br />
16. IIT Roorkee / Kanpur
AWARENESS MEASURES<br />
Advertisements<br />
• Advertisements are being published on all <strong>India</strong> basis<br />
on regular intervals<br />
• Advertisements are theme based<br />
--Various applications <strong>of</strong> fly ash<br />
--Specific usage <strong>of</strong> fly ash-Cement & Concrete,<br />
Building gproducts, Roads and Embankments,<br />
Agriculture, Mine filling etc
2006-07
2006-07
2006-07
2007-08
2007-08
AWARENESS MEASURES<br />
• PRINTING OF BROUCHERS / PAMPHELETS<br />
-<strong>NTPC</strong> Guide <strong>for</strong> Users <strong>of</strong> coal <strong>Ash</strong><br />
-<strong>Ash</strong> a Resource<br />
-Coal ash-Environment Friendly Material <strong>for</strong> Fills,<br />
Embankments & Road Pavement construction-In<br />
association with CRRI<br />
-Fly <strong>Ash</strong> Based Portland Pozzolana Concrete <strong>for</strong> Strong &<br />
Durable Concrete-in association with NCBM
AWARENESS MEASURES<br />
Fly <strong>Ash</strong> Bricks –An Useful & Environment Friendly Building Product –<br />
In association with CBRI-Roorkee<br />
-Clay <strong>Ash</strong> Bricks-Strong & Durable Product <strong>for</strong> Building Construction-<br />
–In association with CBRI-Roorkee<br />
-Eco-friendly Bricks For New Millennium<br />
- <strong>Ash</strong> a new Resource<br />
- Building on strength with fly ash---Fly ash – A Resource <strong>for</strong><br />
cement & Concrete (Bilingual) in association with NCB, Ballabgarh<br />
- Use <strong>of</strong> <strong>Ash</strong> in Agriculture- Grey to Green Revolution<br />
• Printing <strong>of</strong> Technical Literature<br />
-Coal ash –An Environment Friendly Material For Fill &<br />
Embankments construction<br />
- Fly <strong>Ash</strong>-A Cementitious component <strong>for</strong> Cement Concrete
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