Glass Bottle Cullet Use in an Ash Melting Furnace

概要

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Currently, municipal solid waste incineration ash which is produced in the 23 wards of Tokyo is being melted, with the resultant municipal solid waste slag then manufactured for volume reduction, stabilization, and ash recycling. At an incineration plant in Tokyo, 10% sand is added as a basicity (CaO/SiO<SUB>2</SUB>) adjustment agent to protect refractories and to improve municipal solid waste slag quality.<BR>Use of glass bottle cullet instead of sand was examined. Results verified the validity of using glass bottle cullet since it lowers slag viscosity. Little difference was found in other slag characteristics. Energy reduction effects can also be expected as a consequence of the results. Moreover, there are great advantages from the point of refractory corrosion due to the fact that the operating temperature is reduced to about 50°C.