METHOD OF THERMALLY UTILISING WASTES CONTAINING METAL COMPOUNDS AND APPARATUS THEREFOR

摘要

Metallic waste charge (1) on top of sawdust ignition layer (3) placed in a closed combustion chamber (2) supplied with oxygen enriched air through grid (4). Gases and vapours of combustion are cooled and purified in subsequent filter chambers (12, 13) and enriched with oxygen from anodes (10, 11) in a electrolytic circuit comprising a cathode (9) which generates hydrogen inside the combustion chamber (2). The treated gases are recycled back to the grid (4) as combustion air. The hydrogen reduces metallic oxides in the combustion reactions to reclaimable metals.