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| Titel: |
Controlled Release Electron Donors: Hydrogen Release Compound (HRC)—An Overview of a Decade of Case Studies |
| Auteur: |
Koenigsberg, Stephen Willett, Anna Sutherland, Michelle |
| Verschenen in: |
Bioremediation journal |
| Paginering: | Jaargang 10 (2006) nr. 1-2 pagina's 45-57 |
| Jaar: |
2006-07-01 |
| Inhoud: |
Hydrogen Release Compound (HRC) has been a commercially available product for engineered bioremediation of anaerobically biodegradable contaminants since 1999. HRC is a polylactate ester that, upon hydration or microbial cleavage of its ester bonds, slowly releases lactic acid. Lactic acid serves as an electron donor for microbial reductive biodegradation, while also providing hydrogen and carbon where required. HRC is a viscous amber-colored liquid that is typically injected into a contaminated aquifer using direct push technology or backfill injection into boreholes created by traditional drilling methods. Once in place, HRC creates a plume of lactic acid and its fermentation products (other organic acids and hydrogen) downgradient of the injection area and serves to accelerate anaerobic bioremediation processes. In this review of HRC field application results, the authors summarize application types, contaminants treated, site types, application locations, injection methods, site lithology and hydrology, and concentration ranges of geochemical species. The source of this information is a database of more than 850 HRC field applications, a series of 80 HRC publications that are publicly available, and 44 detailed site case histories that are available electronically. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 4 van 8 gevonden artikelen
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