System and method for removing volatile components from an aqueous medium
US4713089A · kind A · utility
24Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 18, 1986 |
| Grant date | Dec 15, 1987 |
| Priority date | — |
| Expiry date | Jul 18, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S203/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system and method is disclosed for removing dissolved organic impurities, such as gasoline or other hydrocarbons, from groundwater. The contaminated water is fed into a stripper column, operated under a deep vacuum, to enable the water to enter the column at its boiling point. Steam, as a vaporizing gas, strips the impurities out of the water and the overhead vapor phase is compressed to boost it to a higher pressure, so it can be condensed to vaporize part of the bottoms stream from the column. Since the bottoms stream is mostly water, the vapor generated is the steam used to strip impurities from the water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.