Remediation of environmental contaminants using a metal and a sulfur-containing compound
US6039882A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 30, 1996 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Oct 30, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/908
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and composition for the remediation of environmental contaminants in soil, sediment, aquifer material, water, or containers in which contaminants were contained, wherein contaminants are reacted with a remediating composition comprising a metal and a sulfur-containing compound to produce environmentally-acceptable, chemically reduced products. The method is useful for treating contaminants such as halogenated hydrocarbons, pesticides, chemical warfare agents and dyes. The remediating composition preferably contains comminuted, commercial grade iron and iron sulfide. The addition of an alcohol to the reactants enhances the rate of the remediation reaction, particularly for contaminants of soils and sediments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.