| Rasa Vaiškūnaitė   Analysis and assessment of biofilter packed with different wood waste 
charges for toluene removal   
			
				| Conference Information: | 9th International Conference on Environmental 
		Engineering, MAY 22-23, 2014 Vilnius, LITHUANIA |  
				| Source: | ICEE-2014 - International Conference on Environmental 
		Engineering |  
				| Book Series: | International Conference on Environmental Engineering 
		(ICEE) Selected papers |  
				| ISSN: | ISSN 2029-7092 online |  
				| ISBN: | 978-609-457-640-9 / 978-609-457-690-4 CD |  
				| Year: | 2014 |  
				| Publisher: | Vilnius Gediminas Technical University Press Technika |  
		View full text in PDF format Abstract Biological  treatment of  the polluted air stream holds promise  for  removing volatile organic compounds  (VOCs) and odors,  thereby not 
only potentially  reducing  the overall  toxicity of  the waste air emitted during various production processes, but also  improving  the  life 
quality of  residents  living near  the  industrial areas companies. The main aim of  this work was  the analysis and  assessment of  toluene 
removal  from air using biofilter packed with a mixture of wood waste. The results of this work show that the small–scale biofilter with 
various  coniferous  and  deciduous  wood  waste  charges  is  capable  of  efficiently  removing  toluene  from  the  polluted  air  stream.  The 
removal efficiency up to 92% was determine when treating the polluted air stream with the initial pollutant concentration of 5–20 mg/m3
 
when using biofilter packed with 10–20 mm fraction size wood waste charge composed of 70% coniferous wood, 30% deciduous wood. 
The measured porosity of this charge was equal to 46%.   Keywords: biofilter; toluene; volatile organic compounds; wood waste charge.  |