Power station fly ash — a review of value-added utilization outside of the construction industry

The disposal of fly ash from coal-fired power stations causes significant economic and environmental problems. A relatively small percentage of the material finds application as an ingredient in cement and other construction products, but the vast majority of material generated each year is held in...

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Bibliographic Details
Published in:Resources, conservation and recycling conservation and recycling, 2001-03, Vol.31 (3), p.217-228
Main Authors: Iyer, R.S, Scott, J.A
Format: Article
Language:English
Subjects:
Agriculture
Applied sciences
Exact sciences and technology
Fly ash
Materials
Materials recovery
Other industrial wastes. Sewage sludge
Pollution
Power station
Utilization
Waste management
Wastes
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Summary:The disposal of fly ash from coal-fired power stations causes significant economic and environmental problems. A relatively small percentage of the material finds application as an ingredient in cement and other construction products, but the vast majority of material generated each year is held in ash dams or similar dumps. This unproductive use of land and the associated long-term financial burden of maintenance has led to realization that alternative uses for fly ash as a value-added product beyond incorporation in construction materials are needed. Utilization of fly ash in such areas as novel materials, waste management, recovery of metals and agriculture is reviewed in this article with the aim of looking at new areas that will expand the positive reuse of fly ash, thereby helping to reduce the environmental and economic impacts of disposal.
ISSN:0921-3449
1879-0658
DOI:10.1016/S0921-3449(00)00084-7