The development of new generation of solid waste refuse incinerators

Abstract

The use of bricks in the construction of new generation of incinerators has proved adequate in clearing large unplanned dumps of refuse in both cities and rural areas of Ghana. These incinerators have been moulded to attain very high temperatures with excellent heat preservation capabilities that no more auxiliary fuel is needed after the initial start up. The heat retention is so high that it allows incineration of subsequent rubbish. Results indicate total destruction capability of wet to dry rubbish into their mineral constituents. The design of these incinerators does not allow combustion products directly into the atmosphere as was in the case of the older ones and with available excess air the organic components of waste are turned in to ashes and the non organics such as tins, cans, bottles perish and eventually fall through the grates and crumble in the high heat of the incinerator. The mode of feeding the Incinerator by the use of wheelbarrows on an inclined plane proved more adequate than the use of steps.

Keywords: crack-free incinerators, heat retention, energy saving, and waste characteristics

Journal of Science and Technology Vol. 26(1) 2006: 143-150