Program Two
Wednesday, May 21, 1997

Vegetation-Based-Remediation Kansa B



K. Rathbone, M.K. Banks, P. Kulakow, and A.P. Schwab, Kansas State University, Manhattan, KS 66506 Increased root surface area and plant exudates are suggested to promote microbial activity in the rhizosphere. By using the rhizosphere of the plant to enhance the microbial activity, bioremediation should also be increased.

Different species of Sorghum bicolor were studied based on their exudate production to increase bioremediation of synthetic diesel fuel. Four varieties of Sorghum bicolor were chosen based on striga resistance (a destructive root parasite) and nitrogen efficiency, so differences in rooting characteristics could be observed.

These varieties were planted in a sandy loam soil contaminated with 0.25% synthetic diesel fuel. Three time periods were used for harvesting samples: 5-leaf stage, flowering, and maturation. Plant uptake and the soil degradation of diesel fuel will be presented and discussed. Results from this study will help assess important root characteristics for plants during phytoremediation.

Key words: bioremediation, exudates, rhizosphere, diesel fuel, plants.

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Tuesday, May 20, 1997

Metals Kansa A

Remediation of Munitions Compounds Kansa B

Analytical Methods Kansa C/D

General Topics Kansa B

Wednesday, May 21, 1997

Metals Kansa A

Zero-Valent Metals Kansa A

Remediation Kansa A

Vegetation-based Remediation Kansa B

Partnerships & Innovative Technologies Kansa C/D

Nonaqueous Phase Liquids Kansa C/D

Thursday, May 22, 1997

Biofilms & Barriers Kansa A

Bioremediation Kansa B

Partnerships & Technology Innovations Kansa C/D

Remediation Kansa C/D


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