Patent Number: 8,721,877

Title: Upflow reactor featuring controlled recirculation of biomass

Abstract: An upflow reactor is provided that includes a reactor tank, conduits, a waste water distributor, at least one first flotation separator and an optional second flotation separator for separating reactor water, biomass, and biogas, a collection device, and a gas separator for separating biomass and biogas. The first flotation separator includes one or more gas domes that are connected to the collection device and have outlets, the cross-sectional area or geometry of which can be controlled using movable covers.

Inventors: Buchmueller; Marianne (Uehlingen-Birkendorf, DE)

Assignee: MCB GmbH

International Classification: B01D 35/00 (20060101); B01D 19/00 (20060101)

Expiration Date: 5/13/12018