- Thermal
Power Plants use mainly coal in India
- The total
production of fly ash per annum is said to have crossed one
hundred million tones
-
Utilization of fly ash is much better now but still the
percentage utilization is small & power plants have no option
but to dispose the fly ash in ash pond.
- Of the
total Solid Waste generated in India, approximately 25% is
residue from coal combustion
- Pond ash
is a mixture of dry fly ash and bottom ash
- The trace
elements
like As, Cu, Pb, Ni, Zn, Co, V, Sc, Be, Cs, and Zr have been
found in various concentrations in the ashes and these elements
significantly enrich the pond ash
- Heavy
metal pollution index (HPI) is calculated based on the data of
the ash ponds to see the extent of pollution
- Extraction
and leaching of various heavy metals like Zn, Ni, Cu, Fe, Pb, Mn,
Mg, and Cd was carried out by applying batch leach test and
toxicity characteristic leaching procedure (TCLP) to check the
possibility of ground water contamination.
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Ash Ponds
Information
-
The design and maintenance of ash
pond
-
Construction of ash pond dyke
for thermal power plants
- Ash Pond Management
- Managing Multiple Constituents in Ash Pond
Discharges
Technology
Options
- Dewatering to stabilizing Flyash disposal
- Wet
Disposal of Coal Ash at Higher Concentration
-
Modification of the Process of
Heavy Metals
Immobilization in Wastewater Sludge
-
Construction of embankment, ash
dykes, filling low-laying areas
Projects
Information
- Physical and Chemical Characterization of Pond Ash
- Heavy Metal Leaching in Indian Fly Ash
- Extraction and Leaching of Heavy Metals
- Extraction Procedure
- Chemical fractionation method for characterization
- Project Details
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Measurement of Trace Heavy Metals
-
Measurement Techniques for
Inorganic Trace Materials
-
Determination of Trace Heavy Metals
in Water Samples
-
Established Technique
-
Chemical states analysis
Environment Protection
-
Thermal power Plants
Environmental Regulations
-
Discharge Permit Limits
-
Flyash incorporation on Soil
-
Birdlife at flyash ponds
Research Reports
- Assessment of Groundwater and
Surface Water Quality Indices
- Radionuclide & trace element
contamination around Thermal Power station
- Trace Metals in acidic fly ash
- Groundwater pollution by metals
nearby coal-fired power plant
- Determination of the contents of
heavy metals and to possible reuse
- Ash Pond Failure
- Metals in Coal Fly Ash Ponds
- The Leaching characteristics of ash
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