Patent ID: 7316921

Claim:
A system for treating organic waste material, comprising: a flexible vessel, capable of being sealed, for containing a volume of organic waste material during hydrolysis thereof, said flexible vessel having a longitudinal axis extending from a first portion at a first end of the vessel to a second portion at a second end of the vessel, the vessel sloped along the longitudinal axis such that the first portion is positioned lower than the second portion such that a liquid hydrolysis product flows under the influence of gravity toward the first end portion of the vessel; at least one conduit communicating at one end thereof with the interior of the flexible vessel, at said first end for removing the liquid hydrolysis product from the flexible vessel; and a digester, coupled the other end of to the at least one conduit, for anaerobically digesting the liquid hydrolysis product from the flexible vessel to produce a biogas product and a liquid digester product.