Removal of toluene vapour using agro-waste as biofilter media.
Biodegradation of toluene vapour was investigated in a laboratory scale biofilter packed with cylindrical pieces of yellow-gram (Cajanus cajan) stalk. Inlet concentrations and volumetric flow rates of toluene were varied from 2.56 to 34.73 g/m3 and 0.18 to 0.24 m3/h, respectively. The steady state was achieved within seven days and the degradation of toluene followed an exponential behaviour with time. Elimination capacity increased and tended towards a constant value but removal efficiency decreased with increase in inlet toluene loading. Depending upon loading rate, the process was either mass transfer or reaction-controlled.
Singh
R S
RS
Department of Chemical Engineering and Technology, Centre of Advanced Study, Institute of Technology, Banaras Hindu University, Varanasi, India.
Agnihotri
S S
SS
Upadhyay
S N
SN
D000393:Air Pollutants / Q000378:metabolism*; D001673:Biodegradation, Environmental; D036561:Cajanus / Q000382:microbiology*; D018556:Crops, Agricultural; D005374:Filtration / Q000379:methods*; D016062:Porosity; D011312:Pressure; D014050:Toluene / Q000378:metabolism*; D014866:Waste Products
D000393:Air Pollutants; D014866:Waste Products; D014050:Toluene