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:
Aug. 19, 2014
Filed:
Mar. 20, 2006
Chris F. Choate, Discovery Bay, CA (US);
Chris F. Choate, Discovery Bay, CA (US);
Recology Inc., San Francisco, CA (US);
Abstract
A method for treating waste material includes screening the material to produce 'unders' that pass a screen and 'overs' that do not. The overs are hydrothermally treated to produce a partially hydrolyzed biomass. The unders from the waste material, and the partially hydrolyzed biomass, are anaerobically digested. The method can also include recovering, and anaerobically digesting, volatile organic compounds from the hydrothermal treatment. A system for treating waste material comprises a screening device, an autoclave, and an anaerobic digester. The screening device separates the waste material into unders and overs, the autoclave receives the overs from the screening device and processes the overs with steam to produce a partially hydrolyzed biomass, and the digester receives and anaerobically digests the unders of the waste material and the partially hydrolyzed biomass. The system can also include an eductor coupled to the autoclave and configured to discharge to the digester.