In situ treatment of soil
US5639182A · kind A · utility
Inventor
Key dates
| Filing date | Oct 12, 1995 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Oct 12, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB09C2101/00
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and apparatus for the in situ treatment of soil, sludge, and the like for purposes of remediation, solidification, stabilization, and/or enhancement thereof involves the use of a machine including a mobile carrier and a mixing apparatus mounted thereon for cutting through and mixing strata of an area which is to be treated. The mixing apparatus includes a boom having disposed thereon an endless cutting assembly which is moveable along a looped path, the cutting assembly including a plurality of teeth which convey material downwardly and mix it with underlying material which is to be treated. The cutting assembly is vertically moveable for positioning at a desired depth in the sludge or other material which is to be treated. The method of the invention involves dispensing a treatment material over an area of material, such as sludge or soil, which is to be treated, and thoroughly mixing the treatment material with the material which is to be treated using a machine having a mixing apparatus mounted on a mobile carrier, the mixing apparatus comprising a cutting assembly which is vertically movable for positioning at a desired depth and including a plurality of cutting teeth …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.