ıDepartment of Biology, Center for Environmental Toxicology, Utah State University, Logan, UT 84322-5305; and ²Utah Water Research Laboratory, Utah State University, Logan, UT 84322-5305
Soils from four different geographic locations with different compositions all reduced mineralization of pyrene by P. chrysosporium when compared to a non-soil system. Two clays, bentonite and kaolinite, differentially decreased the mineralization of pyrene. Bentonite sorbed pyrene to a greater extent and was more inhibitory to mineralization than kaolinite. Sand had little effect on mineralization. Four artificial soils, made with different proportions of sand, silt and clay, free of organic matter and microbes, inhibited mineralization by P. chrysosporium. Inhibition increased with greater proportions of silts. These findings suggest that soil type may influence the bioremediation potential of P. chrysosporium.
pyrene, Phanerochaete chrysosporium, bentonite, kaolinite, mineralization
This paper is from the Proceedings of the 10th Annual Conference on Hazardous Waste Research 1995, published in hard copy and on the Web by the Great Plains/Rocky Mountain Hazardous Substance Research Center.
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