caa a22 4500 477105378 CHVBK 20180405111552.0 cr unu---uuuuu 170330e19960701xx s 000 0 eng 10.1007/BF01570139 doi (NATIONALLICENCE)springer-10.1007/BF01570139 Microbial-assisted remediation of creosote- and pentachlorophenol-treated wood products [Elektronische Daten] [R Portier, D Hoover, M Miles] A recycling process designed to recover wood fiber from discarded utility poles and cross ties was tested. Laboratory and field studies were conducted using a combined physical, chemical and microbiological protocol designed for the removal of creosote and pentachlorophenol wood preservatives from wood fiber. Woodchips produced in an industrial type wood chipper were batch extracted in methanol. The extractions successfully removed more than 95% of eight major creosote compounds contained within the woodchips. An initial combined concentration of 29 262 ppm during the extraction phase was reduced to 95 ppm in the laboratory study and to 1364 ppm in the field study. Biopolishing with a microbial consortium containing adapted strains from the generaPseudomonas, Flavobacterium andAcinetobacter further reduced the preservative concentration to 8 ppm and 200 ppm, respectively, with anthracene being the most recalcitrant compound in both studies. Pentachlorophenol-treated wood with an initial concentration of 1190 ppm, when subjected to the recycling process, yielded end product wood containing less than 2 ppm of the preservative. The solvent/preservative mixture (miscella) produced during the extraction process yielded a pure methanol fraction and a still bottom mixture when subjected to flash distillation. Fractional (vacuum) distillation of the still bottom mixture produced methanol, creosote, pentachlorophenol, and coal tar fractions. Society for Industrial Microbiology, 1996 recycle nationallicence creosote nationallicence pentachlorophenol nationallicence extraction nationallicence biopolish nationallicence flash distillation nationallicence fractional distillation nationallicence Portier R. Institute for Environmental Studies, Lousiana State University, 70803, Baton Rouge, Lousiana, USA aut Hoover D. Institute for Environmental Studies, Lousiana State University, 70803, Baton Rouge, Lousiana, USA aut Miles M. Institute for Environmental Studies, Lousiana State University, 70803, Baton Rouge, Lousiana, USA aut Journal of Industrial Microbiology Springer-Verlag 17/1(1996-07-01), 1-5 0169-4146 17:1<1 1996 17 10295 https://doi.org/10.1007/BF01570139 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01570139 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Portier R. Institute for Environmental Studies, Lousiana State University, 70803, Baton Rouge, Lousiana, USA aut NATIONALLICENCE 700 1- Hoover D. Institute for Environmental Studies, Lousiana State University, 70803, Baton Rouge, Lousiana, USA aut NATIONALLICENCE 700 1- Miles M. Institute for Environmental Studies, Lousiana State University, 70803, Baton Rouge, Lousiana, USA aut NATIONALLICENCE 773 0- Journal of Industrial Microbiology Springer-Verlag 17/1(1996-07-01), 1-5 0169-4146 17:1<1 1996 17 10295 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer