Control of 2-chlorophenol vapour emissions by a trickling biofilter.
This research work investigates the biodegradation of 2-chlorophenol vapours in a trickling biofilter packed with a ceramic material, and seeded with a pure strain of Pseudomonas pickettii. The process was tested at laboratory scale over 260 days of operation under varying loading conditions. More than 98% degradation efficiencies were achieved for loading rates up to 82.5gm(-3)h(-1). Process analysis, performed using data on 2-chlorophenol concentration profiles along the biofilter bed, shows that best biofilter performance (i.e. maximum degradation capacity and efficiency) can be obtained for a narrow range of operating conditions, which can be ensured by proper sizing of biofilter diameter and height.
Zilli
Mario
M
Department of Chemical and Process Engineering G.B. Bonino, University of Genoa, Via Opera Pia 15, 16145 Genoa, Italy. zilli@unige.it
Converti
Attilio
A
Fava
Fabio
F
Nicolella
Cristiano
C
D000393:Air Pollutants / Q000302:isolation & purification; D001673:Biodegradation, Environmental; D002733:Chlorophenols / Q000737:chemistry*; D005374:Filtration / Q000295:instrumentation*; D008954:Models, Biological; D014835:Volatilization
D000393:Air Pollutants; D002733:Chlorophenols; C030683:2-chlorophenol