Contained recovery of oily waste
US4848460A · kind A · utility
194Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1988 |
| Grant date | Jul 18, 1989 |
| Priority date | — |
| Expiry date | Nov 4, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/901
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method is provided for recovering oily waste from oily waste accumulations underground comprising sweeping the oily waste accumulation with hot water to recover said oily waste, wherein said area treated is isolated from surrounding groundwater hydraulically. The hot water may be reinjected after the hot-water displacement or may be treated to conform to any discharge requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.