Biofiltration of toluene using wood charcoal as the biofilter media.
A laboratory scale biofilter inoculated with Pseudomonas putida (MTCC 102) was used for degradation of toluene present in air. Wood charcoal was used as the filter media and a layer of glass beads (6mm) was used for improved air distribution. The biofilter was operated continuously for a period of 5months at four different flow rates - 0.06, 0.12, 0.18, and 0.24m(3)h(-1), with inlet concentration of toluene ranging from 0.04 to 4.5gm(-3). Air having toluene vapor was fed to the biofilter at various loadings ranging from 30.6 to 1104.5gm(-3)h(-1). The removal efficiency was obtained in the range of 70-99.5%. The maximum elimination capacity of 872.5gm(-3)h(-1) was observed at the inlet load of 1104.5gm(-3)h(-1). Wood charcoal was found to an effective biofilter media for toluene biodegradation.
Singh
Kiran
K
Centre of Advanced Study, Department of Chemical Engineering and Technology, Institute of Technology, Banaras Hindu University, Varanasi 221005, UP, India.
Singh
R S
RS
Rai
B N
BN
Upadhyay
S N
SN
D000327:Adsorption; D002606:Charcoal; D005374:Filtration / Q000379:methods*; D014050:Toluene / Q000302:isolation & purification*; D014934:Wood
D002606:Charcoal; D014050:Toluene