Patent ID: 6660518
Filing Date: 2003-12-09
Classification: C12M,Y02E,Y02W,Y10S

Abstract:
A reactor for two-phase methane fermentation of an organic waste material which comprises:(a) an acid fermentation tank which receives a feed liquid for fermentation treatment; (b) a methane fermentation tank of a gas holder type positioned side-by-side to the acid fermentation tank, of which the upper space serves as the methane gas holder; (c) a first vertical partition wall which partitions the acid fermentation tank and the methane fermentation tank; (d) a settling tank positioned side-by-side to the methane fermentation tank, out of which a digestion liquid is discharged; (e) a second vertical partition wall which partitions the methane fermentation tank and the settling tank; (f) a first gate valve provided on the first partition wall for controlling the liquid flow between the acid fermentation tank and the methane fermentation tank; (g) a second gate valve provided on the second partition wall for controlling the liquid flow between the methane fermentation tank and the settling tank; and (h) a methane gas outlet pipeline having a stopcock valve connected to the methane gas holder.