Abstract: In a process and an apparatus for disposing of waste, the waste is carbonized at low temperatures in a carbonization drum, to develop carbonization gas and solid carbonization residue. The carbonization gas is burnt in a combustion chamber and the carbonization residue is divided in a separation device into a coarse and a fine fraction. The fine fraction is subjected to a gasification in a gasifier, to develop synthesis gas and molten slag. A temperature within the gasifier is above a melting temperature of non-combustible substances introduced into the gasifier. The synthesis gas is burnt in the combustion chamber or in a combustion chamber of a gas engine.