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Reduced Biodegradation of Benzonitrile in Soil Containing Wheat-Residue-Derived Ash

^a Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR 72701
^b Department of Agronomy and Soils, Auburn University, Auburn, AL 36849

View larger version (23K): [in a new window]   Fig. 1. Sorption of benzonitrile by soil, wheat ash, and 1% ash-amended soil. The scales on the y axis for ash and ash-amended soil are 1000 and 10 times greater, respectively.

View larger version (18K): [in a new window]   Fig. 2. Desorption of benzonitrile from soil and ash.

View larger version (35K): [in a new window]   Fig. 3. Biodegradation of benzonitrile with time in slurries of soil, ash, and 1% ash-amended soil as compared with their respective extracts and phosphate buffer solution (PBS). Data points and lines overlap for soil extract and PBS, and for extracts of ash and ash-amended soil.