Emissions Reduction in The UK: Accommodating Waste Production from Sulphur Abatement Systems
1990
Crofts, Cathy
Concern for the atmosphere environment has resulted in EC legislation limiting sulphur dioxide emissions. The emission limits are being met by the installation of flue gas desulphurisation and advanced coal combustion systems, which produce large quantities of waste for utilisation or disposal. There are now environmental, economic and regulatory reasons for industry to provide a comprehensive assessment of waste disposal/utilisation issues during the design stage of a project. This paper considers the management of wastes produced from the limestone/gypsum and spray dry FGD processes, and from advanced coal combustion equipment. The assessment shows that environmentally acceptable methods of disposal and utilisation can be identified for these wastes. It is expected that a substantial proportion of FGD gypsum will be utilised in the manufacture of plasterboard, bag plaster and cement. There may also be opportunities for utilisation of spray dry waste and waste from advanced coal combustion systems in structural and agricultural applications. Landfill would be an appropriate form of disposal for the wastes considered in this paper, but utilisation options offer environmentally superior alternatives to disposal justifying further research.
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