NOVELTY - Organic waste is supplied to a thermal decomposition furnace (2). The combustible gas produced by heating dry distillation in the furnace and ejected from the gas venting pipe, and an oxidizing agent are mixed in a reformer (1). Partial combustion of the combustible gas is carried out by dry distillation, and the furnace is heated. The obtained dry distillation residue is introduced into a cylindrical rotation combustion apparatus (6), and heating-reduction is carried out by melted molten slag process.    USE - For processing organic waste, such as municipal solid waste, garbage, paper, fiber, scrap wood, coppiced timber, and plastics.    ADVANTAGE - The process enables detoxification of heavy metals by melting and slagging of the obtained solid substance. The fuel consumption for heat dry distillation and the heat energy required for melting and slagging are reduced. The molten slag is used as a road surfacing material.    DETAILED DESCRIPTION - Organic waste is supplied to a thermal decomposition furnace (2). The combustible gas produced by heating dry distillation in the furnace and ejected from the gas venting pipe, and an oxidizing agent are mixed in a reformer (1). Partial combustion of the combustible gas is carried out by dry distillation, and the furnace is heated. The obtained dry distillation residue is introduced into a cylindrical rotation combustion apparatus (6), and heating reduction is carried out by melted molten slag process. The reformer has a water and/or moisture-content inlet tube (16), a gas inlet tube (14), and a gas discharge pipe (15) for steam. The surrounding surface of the reformer has a thermal decomposition furnace having gas venting pipes. The supply apparatus (51) for organic waste is connected to one end of the furnace, and a carbonization apparatus (1A) is provided at the other end. The slag processing apparatus comprises a cylindrical rotation combustion apparatus having at least one pair of reducing gas supply ports (61), and a melting chamber (8) connected to the bottom portion of the rotation combustion apparatus. Each reducing gas supply port provides an interval in the vertical direction of the rotation combustion apparatus. Each reducing gas supply port is arranged such that vortex of reverse direction is produced with respect to the rotation combustion chamber.    DESCRIPTION OF DRAWING(S) - The figure shows the processing of organic waste.    Reformer (1)    Carbonization apparatus (1A)    Slagging processing apparatus (1B)    Thermal decomposition furnace (2)    Rotation combustion apparatus (6)    Melting chamber (8)    Gas inlet tube (14)    Gas discharge pipe (15)    Water and/or moisture-content inlet tube (16)    Supply apparatus (51)    Reducing gas supply port (61)