Method for treatment of animal waste
US7468132B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 24, 2006 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Jan 12, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/20
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and a facility for the treatment of waste from concentrated animal feed operations are disclosed. The method includes receiving manure at a central location, digesting the manure and producing therefrom combustible gases, solid matter and water containing dissolved organic pollutants. The combustible gases are used to provide energy and the water is separated from the solid matter. The solid matter is dried to produce a useful bedding material and the water is treated using an activated sludge aeration system to reduce the dissolved organic pollutants to carbon dioxide, bacteria and water. The facility includes various means for executing the method and includes an ultrasonic treatment station for disrupting bacteria cell walls to improve digestion efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.