The invention is a method and apparatus for burning combustibles, particularly garbage and coal, in such a manner as to prevent the venting of unwanted pollutants into the atmosphere and for recovering valuable resources. The combustibles are burned in a rotating inclined furnace; solids and molten metals are extracted at the discharge end of the furnace; the discharged gases are passed through a boiler for extracting heat therefrom and generating steam; the discharged gases are liquified by sequential cooling and the so-liquified products removed while preventing discharge of gases into the atmosphere; the remaining gases are passed through a second boiler for further extraction of heat and steam generation and further extraction of liquified products; and the effluent gases are passed into subsequent apparatus for removing any remaining pollutants and for the recovering of resources in accordance with Nielson U.S. Pat. No. 4,728,341.
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