Title: Methane generation from waste materials

Abstract

An organic solid waste digester for producing methane from solid waste, the digester comprising a reactor vessel for holding solid waste, a sprinkler system for distributing water, bacteria, and nutrients over and through the solid waste, and a drainage system for capturing leachate that is then recirculated through the sprinkler system.

Inventors:

Samani, Zohrab A ^[1]; Hanson, Adrian T ^[1]; Macias-Corral, Maritza ^[1]

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+ Show Inventor Affiliations

1. Las Cruces, NM

Issue Date:

2010-03-23

Research Org.:

Arrowhead Center, Inc. (Las Cruces, NM)

Sponsoring Org.:

USDOE

OSTI Identifier:

1015360

Patent Number(s):

7682813

Application Number:

11/373,739

Assignee:

Arrowhead Center, Inc. (Las Cruces, NM)

Patent Classifications (CPCs):

C - CHEMISTRY C12 - BIOCHEMISTRY C12M - APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY

C - CHEMISTRY C12 - BIOCHEMISTRY C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE {

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C - CHEMISTRY C12 - BIOCHEMISTRY C12M - APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY

C12M21/04 - {for producing gas, e.g. biogas
C12M21/16 - {Solid state fermenters, e.g. for koji production}
C12M23/26 - {flexible
C12M29/02 - {Percolation}
C12M41/18 - {Heat exchange systems, e.g. heat jackets or outer envelopes}

C - CHEMISTRY C12 - BIOCHEMISTRY C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE {

C12P5/023 - {Methane}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E50/30 - Fuel from waste

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DOE Contract Number:  

FC04-AL6743

Resource Type:

Patent

Country of Publication:

United States

Language:

English