<p>An apparatus for processing organic waste in an aqueous medium comprises a first immobilized microbe bioreactor 4, which is a hydrolytic redox bioreactor containing a porous inorganic support 10 which is suitable for the accumulation of a biomass, serially connected to a second immobilized microbe bioreactor 13, which is an anaerobic bioreactor containing a porous inorganic support 10 which is suitable for the accumulation of a biomass. <IMAGE></p>
