To provide a biological treatment method of organic wastes containing hardly-decomposable solids such as sewage sludge, foodstuff wastes, waste liquid and wastes from a factory, which method is capable of decomposing a methane fermentation treatment liquid as it is by the biological treatment without conducting the solid-liquid separation, and is capable of largely reducing the amount of solid wastes generated from the methane fermentation treatment liquid and of largely reducing the discharge amount of the solid wastes in the treatment system whole by conducting the biological treatment of the methane fermentation treatment liquid and suitably conducting the solubilization treatment of generated sludge, as compared to the conventional method, and to provide a treatment apparatus therefor.
In the treatment method of the organic wastes by conducting the biological treatment of the organic wastes after the methane fermentation treatment, the method is characterized by chemically or physically conducting the solubilization treatment of the organic solids included in the methane fermentation treatment liquid after the methane fermentation treatment and conducting the microbiological solubilization treatment of the sludge after the biological treatment.
AKASHI AKIRA
Seiichi Yakumaru
Hiroaki Nakatani
Tokuya Iwata
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