Pulsing of electron donor and electron acceptor for enhanced biotransformation of chemicals
US5006250A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1987 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Dec 4, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/908
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present invention is directed to a method for purifying an underground water supply containing halogenated aliphatic compounds by in-situ biodegradation of said compounds, comprising injecting water into an aquifer zone, the injected water containing an electron donor capable of being utilized by an indigenous population of microorganisms contained in the groundwater supply as a primary growth substrate, and an electron acceptor for oxidation of the primary substrate, by separate addition of electron donor and electron acceptor temporally or spatially to stimulate growth of the microorganisms and to distribute them throughout the aquifer zone to cause in-situ degradation of the halogenated aliphatic compounds by metabolic activity of the microorganisms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.