真菌对石油污染土壤的降解研究

STUDY ON BIODEGRADATION OF OIL-POLLUTED SOIL WITH FUNGI

利用微生物对石油污染土壤进行生物降解，具有操作简单，费用低廉，场地适用性强等特点。挑选了2种菌株，进行了室内油降解实验，在摇床实验油降解率：微生物真菌（Faserium．LK）（土著）和真菌（Phanerochaete．Chrysosprium），在20d分别为41.2％和28．1％，真菌（Fusarium．LK）高于真菌（Phane－rochate．Chrysosprium）的降解率，而在培养箱石油污染土壤中，真菌（Fusarium．LK）（土著）和真菌（Phane－rochaete.Chrysosprium），在50d分别为61.8％和66．1％，（Fusarium.LK）低于（Phanerochaete.Chrysosri-um）。

Biodegradation of oil-polluted soil by microbes has characteristics of simple operation, low cost, and easy site application. In this paper, two strains were chosen to degrade oil in laboratory. Experiment in shaker, the oil degradation rates by native fungi (Fusarium LK. ) and (Phanerochaete, Chrysosporum)are 41. 2% and 28. 1 % respectively within 20d. Fungi Fuatrium has higher degradation rate than fungi Phanerochaete and Chrysosporium. While expriments in incubator-cultured oil-polluted soil within 50d,however, the degradation rates were 61.8% and 66. 1 % respectively. The degradation rate by Fusarium LK. was lower than by Phanerochaete and Chrysosporium.