title: Biodegradation of N,N diethylaniline in a contaminated aquifer: Laboratory- and field-scale evidences.
abstract: The effectiveness of biosparging to mitigate N,N diethylaniline in aquifer was evaluated by measuring the time course of decrease in concentration of the aforementioned compound in aerobic microcosm experiments. The first-order kinetic constant for N,N diethylaniline aerobic biodegradation was estimated from microcosm data (0.037 +/- 0.004 d(-1)), and the value was consistent with the best-fitting value in the transport and reaction model of the aquifer (0.020 d(-1)). Furthermore, the biodegradability of the compound was evaluated under anaerobic condition in microcosm experiments, which was supported by field modelling. There was no significant degradation in the anaerobic microcosm experiments, confirming the recalcitrance of N,N diethyl aniline under the aforementioned aquifer condition.
authors.affiliation: Department of Environmental Sciences, University of Milano-Bicocca, Milan, Italy. andrea.franzetti@unimib.it
authors.forename: Andrea
authors.initials: A
authors.lastname: Franzetti
authors.forename: Isabella
authors.initials: I
authors.lastname: Gandolfi
authors.forename: Marco
authors.initials: M
authors.lastname: Piscitello
authors.forename: Giovanni
authors.initials: G
authors.lastname: Porto
authors.forename: Adriano
authors.initials: A
authors.lastname: Biasiolo
authors.forename: Francesca
authors.initials: F
authors.lastname: Oltolini
authors.forename: Tomaso
authors.initials: T
authors.lastname: Marangoni
authors.forename: Giuseppina
authors.initials: G
authors.lastname: Bestetti
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry / Q000378:metabolism*; D001419:Bacteria / Q000737:chemistry / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism*; D001673:Biodegradation, Environmental; D007700:Kinetics; D014871:Water Microbiology; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000378:metabolism*
chemical_list: D000814:Aniline Compounds; D014874:Water Pollutants, Chemical; C110696:N,N-diethylaniline