Patent ID: 7101481
Filing Date: 2006-09-05
Classification: C02F,C05F,C12M,Y02E,Y02P,Y02W

Abstract:
1. A system for the continuous decomposition of organic material to produce biogas and compost, the system having: a primary reactor defining at least two reactor zones for the continuous receipt of organic material, one of said reactor zones being adapted to receive said organic material while organic material in other reactor zones is being decomposed for excavation as raw compost; drainage means for draining organic rich liquor from the primary reactor; a secondary reactor for anaerobic digestion of organic rich liquor drained from the primary reactor to produce spent liquor and biogas; liquid circulation means for returning spent liquor from the secondary reactor to the primary reactor; gas recovery means for collecting biogas from the primary and secondary reactors; aeration means for aerobic decomposition of organic material in the primary reactor; and excavation means for removing compost from the primary reactor and to free a reactor zone for receiving another charge of organic material.