| Title: |
Attenuated Anaerobic Dechlorination of Groundwater Using HRC?
|
| Resource Type: |
document --> case study
|
| Country: |
USA
|
| Year: |
2008 |
| Availability: |
EPA/540/R-08/003 August 2008
|
| Author 1/Producer: |
US Environmental Protection Agency (US EPA)
|
| Other Authors/Producers: |
MACTEC - Harding ESE
|
| Author / Producer Type: |
Agency, regulator or other governmental or inter-governmental body
|
| Format (e.g. PDF): |
PDF
|
|
EUGRIS Keyword(s): |
Contaminated land-->Remediation options-->In situ treatment technologies
|
| Short description: |
EXTACT: MACTEC's Harding Environmental Science and Engineering Division (Harding ESE) has designed an in situ Permeable Reactive Barrier Wall (PRBW) that utilizes Hydrogen Release Compound (HRC®) to treat groundwater contaminated with chlorinated compounds. HRC® is a hydrogen-generating compound based on a lactic acid/glycerine polyester that is able to generate free hydrogen under anaerobic conditions. The bacteria consume the HRC® (or hydrolysis products) and produce the hydrogen needed for dechlorination of contaminants. This process takes place along with other anaerobic degradation mechanisms which convert the HRC® to volatile fatty acids such as pyruvic acid, butyric acid, propionic acid, and acetic acid, which in turn are biodegraded by methanogenesis to ethane, methane, and carbon dioxide.
|
|
Submitted By:
|
Professor Paul Bardos WhoDoesWhat?
Last update: 09/09/2008
|
|
|
