A cell wall or cell membrane crushing device comprising a fixed disk, a rotating disk, a rotating shaft for driving the rotating disk, a decompression means, and a housing, wherein at least one set of the fixed disk and the rotating disk is arranged to face each other. The center portion of the fixed disk has a cavity that is larger than the outer diameter of the rotating shaft that passes through the center portion, and the shearing force generated between the rotating disk and the fixed disk is supplied to the water content in the apparatus. A cell wall possessed by microorganisms, algae, etc. contained in organic sludge, which is applied to a fluid of an object having a rate of 89% or more, and the pressure in the cell wall or cell membrane crushing apparatus is reduced to −0.08 MPa or less by a decompression means And / or providing a device for disrupting cell membranes. The apparatus can contribute to the increase of biogas, sludge reduction, algae culture, plant cultivation, marine product culture, and the like. For example, CH4 and CO2 can be separated and linked to resources. 固定ディスク、回転ディスク、該回転ディスクを駆動するための回転軸、減圧手段及び筐体を備える、細胞壁又は細胞膜破砕装置であって、固定ディスク及び回転ディスクの少なくとも１組は対向して配置されており、固定ディスクの中心部は、該中心部を通る回転軸の外径よりも大きい空洞部を有し、回転ディスクと固定ディスクとの間で発生した剪断力が、装置内に投入された含水率８９％以上の対象物の流体に適用され、細胞壁又は細胞膜破砕装置内の圧力が、減圧手段によって－０．０８ＭＰａ以下に減圧される、有機汚泥などに含まれる、微生物、藻類などが有する細胞壁及び／又は細胞膜を破砕する装置の提供。該装置は、バイオガスの増量、汚泥の減量、藻類の培養、植物栽培、水産物の培養等に貢献することができ、例えばＣＨ４、ＣＯ２を分離して資源に繋げることもできる。
