Abstract: A system is provided for processing a volume of human sludge with sea water and chemical reactants to generate methane gas and to reduce the volume by at least eighty percent (80%). This is by having a series of processing containers for receiving, holding and processing the sludge volume by way of a volume of sea water and chemical reactants. A first processing container is constructed with a means for mechanically agitating the sludge volume and collecting methane gas released therefrom. The system further has a second processing container for processing a sludge mixture transferred from the first processing container for further treatment of said sludge mixture by sea water and chemical reactants with a means for collecting methane gas released therefrom. A filter system for filtering said sludge volume and said sludge mixture is included in each of the processing containers.