FERMENTATION TREATMENT APPARATUS

To provide a fermentation treatment apparatus capable of flexibly responding to a solid material concentration in fermentation liquid.SOLUTION: A fermentation treatment apparatus 10 which puts organic waste containing solid material as an object to be treated into a fermentation tank 20 to perform anaerobic fermentation includes an agitation mechanism 40 which agitates organic waste put into the fermentation tank 20. Therein, the agitation mechanism 40 is constituted to include an agitation shaft 41 rotatably supported on an upper part of the fermentation tank 20 and an agitation blade 42 fixed on the agitation shaft 41, and the agitation blade 42 includes a sedimentation promoting blade fixed to the agitation shaft on such a position as to transverse a liquid level of fermentation liquid in the fermentation tank.SELECTED DRAWING: Figure 3 【課題】発酵液中の固形物濃度に応じて、柔軟に対応可能な発酵処理装置を提供する。【解決手段】被処理物である固形物を含む有機性廃棄物を発酵槽２０に投入して嫌気性発酵処理する発酵処理装置１０であって、前記発酵槽２０に投入された有機性廃棄物を槽内で撹拌する撹拌機構４０と、を備え、前記撹拌機構４０は、前記発酵槽２０の上部で回転可能に支持された撹拌軸４１と、前記撹拌軸４１に固定された撹拌羽根４２を備えて構成され、前記撹拌羽根４２は、前記発酵槽内の発酵液の液面を横切る位置で前記撹拌軸に固定された沈降促進羽根を備えている。【選択図】図３