| 摘要 |
A membrane separation-coupled biogas production apparatus for organic waste treatment is provided to improve the generation amount of methane gas using methanogens by removing solids through membranes of membrane separation devices, thereby flowing a liquid phase material containing a large amount of organic acid in a biogas reservoir. A membrane separation-coupled biogas production apparatus for organic waste treatment comprises: a solid-liquid separation tank(10) in which organic waste flows, and solid-liquid separation of the organic waste is carried out; an acid production tank(20) in which organic waste flows from the solid-liquid separation tank, and organic acid is produced by microorganisms; membrane separation devices(30) in which a solid-liquid separation part with a predetermined space is formed, and at least one cylindrical membrane(33a) is installed in the solid-liquid separation part to separate solids with a predetermined size or larger contained in water flown in from the acid production tank, the membrane having a plurality of pores formed in an outer peripheral surface thereof; a biogas production tank(40) which is connected to the membrane separation devices such that water from which the solids have been removed by the membrane flows in the biogas production tank, and in which microorganisms are filled; and a biogas reservoir(50) which is connected to the biogas production tank, and in which produced biogas is stored. The membrane separation devices and acid production tank are connected to biogas supply paths(21,31) for supplying biogas produced in the membrane separation devices and acid production tank to the biogas reservoir.
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