Fermentation apparatus that uses biomass as feedstock

摘要

A fermentation apparatus that uses biomass as feedstock comprises: a device for carrying out high-temperature processing of biomass feedstock; a cooling means (90) for cooling a biomass liquid that has undergone high-temperature processing (101A); an enzyme saccharification tank (103) in which a cooled liquid (101B) is enzymatically saccharified; a foreign substance removal unit (113) provided with a solid-liquid separation device (112) and a microfiltration (MF) membrane (113a) for removing water-insoluble fermentation inhibitors contained in a sugar solution (104) extracted from the enzyme saccharification tank (103); a dilution tank (132) disposed downstream from the foreign substance removal unit (113), in which the sugar solution (104) from which water-insoluble fermentation inhibitors have been removed is diluted by adding water; a water separation unit (116) provided with a reverse osmosis (RO) membrane (116a) for removing water (114) from the diluted sugar solution (104) to obtain a concentrated sugar solution (115); and a fermentation tank (141) for carrying out fermentation using the concentrated sugar solution (115).