| abstract |
[PROBLEMS] To provide a method and apparatus for treating organic wastewater for effectively reducing the amount of generated sludge and facilitating normal solid-liquid separation in a settling tank. (1) In a method for treating an aerobic organism by supplying organic wastewater to an aeration tank, sludge containing endospore-forming bacteria and / or endospore-forming bacteria are added to the organic wastewater in advance. A method for treating organic wastewater, wherein the mixture is mixed and spores of the endospore-forming bacteria are germinated and converted into vegetative cells, and the mixed solution is supplied to the aeration tank. (2) In an organic wastewater treatment device equipped with an aeration tank and a solid-liquid separation tank, In the upstream of the aeration tank, a spore germination tank for mixing organic wastewater and sludge containing endospore-forming bacteria to germinate spores of the bacteria and convert them into vegetative cells, and a vegetative cell produced in the spore germination tank, An organic wastewater treatment apparatus, comprising: a pipe for supplying a mixed liquid containing the mixture to the aeration tank; and a pipe for supplying sludge separated in the solid-liquid separation tank to the spore germination tank. |