TECHNOLOGY FOCUS - BIOLOGY - Preferred Microorganisms - The SOD producing microorganisms are purple microorganisms.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The microorganism activator is prepared by mixing and dissolving silicon-containing material and an alkaline substance to obtain silicon-containing solute, and heat-processing the obtained silicon-containing material. The silicon-containing solute is heat processed at a temperature below the melting point of the silicon-containing material. The alkaline substance comprises calcium carbonate or lime. The silicon-containing material comprises magnesium or a magnesium-containing compound. The silicon-containing solute comprises one or more of the substances chosen from cement, intermediate product of cement, blast furnace slag, and coal ash. The acidic solvent comprises diluted hydrochloric acid. The acid solvent further comprises gelatinization suppressing agent chosen from acetic acid, ammonium acetate and ammonium chloride. A pH adjuster is accommodated in the processing tank, where the pH adjuster is calcium chloride. The microorganism activator comprises aqueous magnesium solution. The carrier consists of chaff and/or wood chip material.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Device: The processing tank is further provided with an activated oxygen supply unit (3) for supplying activated oxygen. The activated oxygen supply unit comprises a ventilation path (41) which sends air to the processing tank, a magnetic field generation unit for generating magnetic field in the ventilation path, and an electron generation unit for emitting electron in the ventilation path. The magnetic field generation unit comprises electromagnetic coil that wounds in a direction orthogonal to the ventilation direction around the ventilation path, where the electromagnetic coil from the electric current supply unit supplies direct current. The electron generation unit comprises a discharge electrode and a counter electrode in such a way that the discharge electrode and the counter electrode face the ventilation direction in the ventilation path. The counter electrode is made up of titanium oxide. The electron generation unit applies a direct current voltage of 5 kV or more between the discharge and counter electrodes. The ventilation path further comprises a blower (42), where the magnetic field generation unit, and the electron generation unit are made to generate magnetic field, and to emit electrons in a blowing direction respectively. The processing tank is further accommodated with superoxide dismutase (SOD) producing microorganisms, aqueous solution, metal or metallic compound which supplies metal ion for generating Fenton's reaction. The processing tank is further accommodated with one or more adjuvants chosen from copper, zinc, or magnesium. The metal ion comprises one or more bivalent iron ion and/or monovalent copper ion. The organic waste is thrown to the processing tank in a predetermined time interval.