Degradation of 2,4,6-trichlorophenol by a specialized organism and by indigenous soil microflora: bioaugmentation and self-remediability for soil restoration.
A selected mixed culture and a strain of Alcaligenes eutrophus TCP were able to totally degrade 2,4,6,-TCP with stoichiometric release of Cl-. In cultures of Alc. eutrophus TCP, a dioxygenated dichlorinated metabolite was detected after 48 h of incubation. Experiments conducted with soil microcosms gave evidence that: the degradative process had a biotic nature and was accompanied by microbial growth; the soil used presented an intrinsic degradative capacity versus 2,4,6-TCP; the specialized organism used as inoculum was effective in degrading 2,4,6-TCP in a short time. These results could be utilized for the adoption of appropriate remediation techniques for contaminated soil.
Andreoni
V
V
Department of Food Science and Microbiology, Università di Milano, Italy.
Baggi
G
G
Colombo
M
M
Cavalca
L
L
Zangrossi
M
M
Bernasconi
S
S
D000421:Alcaligenes / Q000145:classification / Q000302:isolation & purification* / Q000378:metabolism*; D015373:Bacterial Typing Techniques; D001673:Biodegradation, Environmental; D002733:Chlorophenols / Q000378:metabolism*; D002851:Chromatography, High Pressure Liquid; D006090:Gram-Negative Bacteria / Q000145:classification / Q000302:isolation & purification* / Q000378:metabolism*; D009153:Mutagens / Q000378:metabolism; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000378:metabolism*
D002733:Chlorophenols; D009153:Mutagens; D012989:Soil Pollutants; C024564:2,4,6-trichlorophenol