Performance evaluation of a scoria-compost biofilter treating xylene vapors

Journal of Environmental Health Science Engineering

Fazel Mohammadi Moghadam⁴  Mohsen Heidari³  Bijan Bina¹  Amir Rahimi²  Mohammad Mehdi Amin¹ 

[1] Student Research Center, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran;Chemical Engineering Department, College of Engineering, University of Isfahan, Isfahan, Iran;Department of Environmental Health Engineering, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran;Department of Environmental Health Engineering, School of Health, Shahrekord University of Medical Sciences, Shahrekord, Iran

关键词: Elimination capacity;    Compost;    Scoria;    Biofilter;    Xylene;   

Others  :  1175277
DOI  :  10.1186/s40201-014-0140-4

 received in 2014-03-13, accepted in 2014-11-11,  发布年份 2014

【 摘 要 】

The removal of xylene vapors was studied in a biofilter packed with a new hybrid (scoria/compost) packing material at various inlet loads (IL) and empty bed residence times (EBRT) of 90, 60, and 40s. The best performance was observed for EBRT of 90s, where a removal efficiency of 98% was obtained under steady state condition for inlet xylene concentration of 1.34 g m⁻³, while a maximum elimination capacity of 97.5 g m⁻³ h⁻¹ was observed for IL of 199.5 g m⁻³ h⁻¹. Carbon dioxide production rates and the microbial counts for xylene-degraders followed xylene elimination capacities. Overall look to the results of this study indicates that the scoria/compost mixture could be considered as a potential biofilter carrier, with low pressure drop (here <4 mm H₂O), to treat air streams containing VOCs.

【 授权许可】

   
2014 Amin et al.; licensee BioMed Central Ltd.

【 图 表 】

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