Process for exothermal treatment and recovery of solid, semi-solid, pasty and/or damp waste
US8366941B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2008 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Sep 8, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10B53/00
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process for exothermic treatment and recovery of masses including: urban solid waste (USW), including differentiated and non-differentiated damp waste and non-differentiated waste of vegetable origin; sludge generated by industrial and non-industrial water treatment; solid, semi-solid, pasty residue and/or sludge residue coming from industrial, agricultural and food-processing operations; soils and inert materials contaminated by organic matrices; solid, semi-solid, pasty residue and/or sludge residue of hydrocarbon compounds, including asphalt and organic-chemical compounds; contaminating animal excrements, such as those of poultry and/or swine. In particular, the process envisages the use of an exothermic reaction produced by mixing the mass to be treated with a mixture of calcium oxides (CaO) and/or calcium hydroxides Ca(OH)2, in the presence of an inert catalyst moistened with water, in the absence of oxygen using the charcoal-pile technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.