Chemical and Biomolecular Engineering Faculty Research

Title

Pyrene Biodegradatin in Aqueous Solutions and Soil Slurries By< I> Mycobacterium Pyr-1 and Enriched Consortium

Document Type

Article

Publication Date

Fall 2001

Abstract

To better understand complex bioavailability issues, pyrene degradation was examined in aqueous and soil slurry solutions using pure Mycobacterium sp. PYR-1 and a microbial consortium. The intrinsic rates of the aqueous pyrene degradation were very similar, pyrene/CFU-h for Mycobacterium sp. PYR-1 and pyrene/CFU-h for the consortium. Rates were much lower with the soil-slurry experiments, ranging from 1.2×10−12 to , depicting the strong negative effects of soils on bioavailability. Supernatants from the slurry experiments were found to increase the aqueous-phase pyrene solubility significantly. Pyrene solubility was increased from 120.5 to over . However, the linear adsorption constants of pyrene on the soil were reduced.

Volume

44

Issue

5

First Page

1079

Last Page

1086