Biochemically enhanced thermophlic treatment process
US6660164B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Oct 2, 2000 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Oct 2, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present invention provides a process and apparatus for autothermal aerobic thermophilic treatment of high strength and high temperature wastes. Waste material is injected into a reactor vessel (12) having thermophilic microorganisms to form a volume of bulk liquid in the reactor vessel (12). An oxygen-containing gas is also injected into the reactor vessel (12) for aerobic treatment of the waste material. The oxidation-reduction potential and temperature of the reactor bulk liquid are monitored and at least a selected one of the rate of injection of the oxygen-containing gas, the oxygen-transfer efficiency of the oxygen-containing gas and the volume of bulk liquid in the reactor (12) are adjusted in response to the oxidation-reduction potential and temperature of the reactor bulk liquid to maintain the temperature of the reactor bulk liquid within a predetermined range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.