Vegetative bioremediation of phenanthrene
- Kansas State Univ., Manhattan, KS (United States)
The role of vegetation to stimulate the degradation and detoxification of toxic and recalcitrant organic chemicals at low soil concentrations is brought about by several mechanisms of plant-soil interactions, including improvement of physical and chemical properties of contaminated soils, increase in soil microbial activity and increase in contact between microbes associated with the roots and toxic compounds in a contaminated soil. This represents a potential cost effective and low maintenance alternative for waste management. However, there is not enough information concerning specific application of plants, chemicals and soils either in the form of laboratory or field results. In the research to be presented, different and diverse perennial plant species [grasses (monocot), legumes, and dicots] were collected from the native prairie grasslands and tested for their efficiency in mineralization of phenanthrene. The mineralization of phenanthrene was evaluated by the measurement of {sup 14}CO{sub 2} from the radiolabeled target compound incubated in a rhizosphere soil microcosm. Results from this study will indicate the potential of using different types of plants to enhance degradation of PAHs in contaminated soils.
- OSTI ID:
- 491073
- Report Number(s):
- CONF-9406250--
- Country of Publication:
- United States
- Language:
- English
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