You are here:
FIELD EVALUATION OF LIGNIN-DEGRADING FUNGI TO TREAT CREOSOTE-CONTAMINATED SOIL
Citation:
Davis, M., J. Glaser, J. Evans, AND R. Lamar. FIELD EVALUATION OF LIGNIN-DEGRADING FUNGI TO TREAT CREOSOTE-CONTAMINATED SOIL. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-94/491.
Description:
A field study to determine the ability of selected lignin-degrading fungi to remediate soil contaminated with pentachlorophenol and creosote was performed at a wood treating facility in south central Mississippi in the Autumn of 1991. he study was designed to evaluate 7 fungal treatments and appropriate control treatments. oil concentrations of 14 priority pollutant polycyclic aromatic hydrocarbon (PAH) components of creosote were measured over time to determine treatment efficacies. ungal treatments involved mixing fungal inocula and aspen chips into the contaminated soil and maintaining moisture by irrigation and aeration by tillage. AHs of more than 4 rings persisted at their original concentrations during the 8 wk course of the study for all treatments and controls. reater depletion of 3- and 4-ring analytes was observed in soil treated with P. sordida than in soil treated with P.chrysosporium, T. hirsuta, or with both P. chrysosporium, and T. hirsuta at a 10% inoculum loading level. nset of degradation of 3-ring compounds in soil treated with P. sordida was rapid, whereas depletion of 4-ring analytes was apparent only after a 2 wk lag period. 85% to 95% of 3-ring and 24% to 72% of 4-ring PAH analytes were depleted in soil treated with P. sordida after 8 wk- Significantly less depletion of 3- and 4-ring analytes occurred in nonamended soil and in soil amended with sterile inoculum substrate.