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Chencho Norbu Prof. Timothy J. Downs Edward Yeboah Dr. L.J.R. Scholtens Dr. Jyotsna Bapat Maren Oelbermann Ph.D. Sayyed Ahang Kowsar Jaime Alexandra Webbe Bram Govaerts Ph.D. Nele Verhulst M. Sc. Goodspeed Kopolo Maria Rosário Partidário Mr. N’guessan Alphonse Kouassi John All Ph.D. JD Narcisa Pricope Leslie Lipper 《Natural resources forum》2008,32(3):252-256
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The capacity of Phanerochaete chrysosporium grown on soil with added sugarcane baggase (BP) and pine sawdust (PS) to remove benzo(a)pyrene (BaP) was studied. A half factorial two-level experiment 2(4-1) was designed to determine the effect of: type of lignocellulosic material (BP and PS) for fungus growth, age of fungus (5 and 10d), amount of lignocellulosic material (10% and 15% w/w) and soil moisture content (water holding capacity of 45% and 56% w/w). Inoculum obtained at different ages showed that the capacity of P. chrysosporium to remove BaP depends on the lignocellulosic used and on inoculum age. Abiotic BaP removal was affected significantly (p<0.05) by inoculum age, type of lignocellulosic added and soil moisture content. The removal of BaP by lignocellulosic material was more effective by young inocula (71.97 mg BaP kg(-1) dry soil), with high percentage of added lignocellulosic (71.57 mg BaP kg(-1) dry soil) and at low soil moisture content (73.07 mg BaP kg(-1) dry soil). When fungus was grown on BP, maximum BaP removal rate was obtained at 5d of incubation (10.85 mg BaP d(-1)l(-1) and 50.12 mg BaP kg(-1) dry soil), while in PS maximum BaP removal was obtained at 10d of incubation (12.06 mg BaP d(-1)l(-1) and 39.94 mg BaP kg(-1) dry soil). 相似文献
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