The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2015
Filed:
Nov. 28, 2008
Applicants:
Minh Son Le, Northwich, GB;
Ruyi HU, Chester, GB;
Sean Tyrrel, Ampthill, GB;
Inventors:
Assignee:
United Utilities PLC, Great Sankey, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C12M 1/00 (2006.01); C12M 3/00 (2006.01); C02F 11/04 (2006.01); C02F 3/12 (2006.01); C12M 1/107 (2006.01); C12M 1/02 (2006.01); C02F 11/12 (2006.01);
U.S. Cl.
CPC ...
C02F 11/04 (2013.01); C02F 3/1263 (2013.01); C12M 21/04 (2013.01); C12M 41/18 (2013.01); C12M 47/02 (2013.01); C02F 11/12 (2013.01); C02F 2209/02 (2013.01); Y02E 50/343 (2013.01); Y02W 10/15 (2015.05);
Abstract
A method and related apparatus for the removal of excess water from sludge, the method comprising the steps of: (1) fermenting the sludge at a temperature in the mesophilic temperature range, (2) maintaining the fermenting sludge for a predetermined period under a hydraulically quiescent condition to achieve phase separation, (3) separately removing the solid phase and liquid phase and (4) feeding the solid phase to the digester for conversion to biogas.