Abstract: A method of pyrolyzing sewage sludge to transform the same into activated carbon, with the combustible pyrogas and volatile liquids included therewith that arise from the pyrolysis operation being burned to sustain the transformation operation. A first portion of the hot activated carbon resulting from the operation is mixed with the wet sewage sludge to provide a dry sludge mixture that is subsequently subjected to the pyrolyzing operation. Water vapor that discharges as the hot activated carbon is mixed with the wet sewage sludge is heated by the burning of the pyrogas and transformed to steam. The resulting steam is in contact with the dry mixture during the pyrolyzing operation, and as a result the dry mixture is transformed to activated carbon. A second portion of the resulting activated carbon is separated from the first portion thereof, with this second portion being available for use apart from the method.