Abstract: A method for handling, treating, heating and incinerating, on-site, liquid waste, sewage, sludge, cakes or solid waste. The primary treatment process utilizes a 0.1-50% power of plastic clay and may include separation, absorption, precipitation, neutralization, sedimentation, flocculation, coagulation, filtration or dewatering. The residue remaining after the primary treatment is mixed with additional clay or silicates and a suitable absorbent for either organic or inorganic, liquid material, to form a solid mixture of approximately 5-50% clay or silicates and 0.1-10% absorbent. The solidified mixture is formed into granules or other shapes having large surface area. The stable, solid granules are transferred to a conveyorized oven, dried and pyrolized or fired. Resulting organic gases may be condensed to oil or exhaust gases may be vented into a secondary incineration unit.