Bacterial Reduction of Chromium |
| |
Authors: | Schmieman Eric A Petersen James N Yonge David R Johnstone Donald L Bereded-Samuel Yared Apel William A Turick Charles E |
| |
Institution: | 1.Civil … Environmental Engineering Department, Washington State University, Pullman, WA ;2.Chemical Engineering Department, Washington State University, Pullman, WA ;3.Idaho National Engineering and Environmental laboratory, Center for Industrial Biotechnology, P. O. Box 1625, Idaho Falls, ID ; |
| |
Abstract: | A mixed culture was enriched from surface soil obtained from an eastern United States site highly contaminated with chromate. Growth of the culture was inhibited by a chromium concentration of 12 mg/L. Another mixed culture was enriched from subsurface soil obtained from the Hanford reservation, at the fringe of a chromate plume. The enrichment medium was minimal salts solution augmented with acetate as the carbon source, nitrate as the terminal electron acceptor, and various levels of chromate. This mixed culture exhibited chromate tolerance, but not chromate reduction capability, when growing anaerobically on this medium. However, this culture did exhibit chromate reduction capability when growing anaerobically on TSB. Growth of this culture was not inhibited by a chromium concentration of 12 mg/L. Mixed cultures exhibited decreasing diversity with increasing levels of chromate in the enrichment medium. An in situ bioremediation strategy is suggested for chromate contaminated soil and groundwater. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|