Reactor comprising a supply distribution system for anaerobic waste water treatment

Patent 7919000 Issued on April 5, 2011. Estimated Expiration Date:

July 12, 2027. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3527575

Apparatus for anaerobic digestion of organic waste
Patent #: 4726899
Issued on: 02/23/1988
Inventor: Stafford , et al.

Method for anaerobic sludge digestion Patent #: 5409610
Issued on: 04/25/1995
Inventor: Clark

Inventors

Assignee

Application

No. 12373465 filed on 07/12/2007

US Classes:

210/603Including collecting or storing gas (e.g., fuel, carbon monoxide, etc.)

Examiners

Primary: Prince, Fred

Attorney, Agent or Firm

Greenblum & Bernstein, P.L.C.

Foreign Patent References

1667058 DE 06/01/1971
4042223 DE 07/01/1992
4208148 DE 09/01/1992
19815616 DE 10/01/1999
10358400 DE 07/01/2005
153299 EP 08/01/1985
170332 EP 02/01/1986
0493727 EP 07/01/1992
539430 EP 10/01/1994
0948463 EP 01/01/2001
1071636 EP 01/01/2002
1553058 EP 07/01/2005
1609763 EP 12/01/2005
2004/035486 WO 04/01/2004
2006/132523 WO 12/01/2006

International Class

C02F 3/28

Abstract

Disclosed is a reactor for anaerobically treating waste water, especially treating waste water from the paper industry. Said reactor comprises a reactor vessel, at least one supply pipe which is arranged in the bottom area of the reactor vessel and is used for feeding waste water that is to be treated into the reactor, at least one supply distributor for mixing the waste water fed to the reactor with the medium located in the reactor, at least one overflow port which is disposed on the top reactor vessel and is used for discharging treated water, and at least one separator. The supply distributor is provided with at least one deflection means that is embodied such that waste water discharged from the at least one supply pipe is diverted into a circular current from the perspective of the cross-section of the reactor, one to 80 percent of the cross-section of the reactor being filled by the at least one deflection means. The invention further relates to a method for anaerobically treating waste water.