« Previous AbstractDead ant walking: a myrmecophilous beetle predator uses parasitoid host location cues to selectively prey on parasitized ants    Next Abstract"Field evaluation of (Z)-9-tricosene, a sex-attractant pheromone in bait combination for the control of houseflies in Gazipur dairy area Delhi, (India)" »

J Environ Biol

Title:		Biodegradation of mono-chlorobenzene by using a trickle bed air biofilter (TBAB)
Author(s):		Mathur AK; Majumder CB; Singh D; Bala S;
Address:		"Applied Mechanics Department, Motilal Nehru National Institute of Technology, Allahabad - 211 004, India. anilmathur@rediffmail.com"
Journal Title:		J Environ Biol
Year:		2010
Volume:		31
Issue:		4
Page Number:		445 - 451
DOI:
ISSN/ISBN:		0254-8704 (Print) 0254-8704 (Linking)
Abstract:		"In the present study, performance of the trickle bed airbiofilter (TBAB) for treating mono-chlorobenzene (MCB) was evaluated for various influent volatile organic compound (VOC) loadings using coal and mixed consortium of activated sludge as the packing material. Microbial acclimation to MCB was achieved by exposing the system continuously for 31 d to an average inlet MCB concentration of 0.688 g m(-3) at an empty bed residence time (EBRT) of 188 s. The TBAB achieved maximum removal efficiency of 87% at an EBRT of 188 s for an inlet concentration of 0.681 g m(-3), which is quite significance than the values reported in the literature. Elimination capacities of MCB increased with an increase of the influent VOC loading, but an opposite trend was observed for the removal efficiency The maximum elimination capacity of the biofilter was 110.75 g m(-3) hr(-1) at an inlet MCB concentration of 1.47 g m(-3). The effect of starvation on the TBAB was also studied. After starvation, the TBAB lost its ability to degrade MCB initially However the biofilter recovered very quickly Evaluation of the concentration profile along the bed height indicated that the bottom section of TBAB has the best performance for all concentrations. By using Wani's method of macrokinetic determination based on simple Monod kinetics, the maximum removal rate of MCB, r(max) and saturation constant K(m) was to be found as 1.304 g m(-3)s(-1) and 113.446 g m(-3), respectively"
Keywords:		"*Biodegradation, Environmental Chlorobenzenes/*metabolism Filtration/*instrumentation Kinetics Microscopy, Electron, Scanning Sewage Volatile Organic Compounds/metabolism;"
Notes:		"MedlineMathur, Anil K Majumder, C B Singh, Dhananjay Bala, Shashi eng Research Support, Non-U.S. Gov't India 2010/12/29 J Environ Biol. 2010 Jul; 31(4):445-51"