Method of Aggregate Production from Power Plant Ashes by Sintering in the Shaft Furnace: Economic Aspects
Solid waste management is a very important issue because of the increasing amount of different residues that have hazardous impacts on the human environment. Power generation is one of the biggest sources of various pollutants, fly ash being one. Damping of this material is limited due to the limited area that can be used by the power industry, and more effective and efficient methods must be developed to solve the problem of fly ash generated by power stations. The original technology of fly ash sintering to produce lightweight aggregate is presented. This technology provides a useful product and eliminates the need for discharge of fly ash into the environment. Selected components of the costs of aggregate production using this technology are described, and a cost comparison with other methods, such as Megran and Pollytag, has been performed.
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