Treatment of mixtures of toluene and n-propanol vapours in a compost-woodchip-based biofilter.
Environ Technol
; 33(7-9): 751-60, 2012.
Article
em En
| MEDLINE
| ID: mdl-22720398
ABSTRACT
The present work describes the biofiltration of mixture of n-propanol (as a model hydrophilic volatile organic compound (VOC)) and toluene (as a model hydrophobic VOC) in a biofilter packed with a compost-woodchip mixture. Initially, the biofilter was fed with toluene vapours at loadings up to 175 g m(-3) h(-1) and removal efficiencies of 70%-99% were observed. The biofilter performance when removing mixtures of toluene and n-propanol reached elimination capacities of up to 67g(toluene) m(-3) h(-1) and 85 g(n-propanol) m(-3) h(-1) with removal efficiencies of 70%-100% for toluene and essentially 100% for n-propanol. The presence of high n-propanol loading negatively affected the toluene removal; however, n-propanol removal was not affected by the presence of toluene and was effectively removed in the biofilter despite high toluene loadings. A model for toluene and n-propanol biofiltration could predict the cross-inhibition effect of n-propanol on toluene removal.
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Base de dados:
MEDLINE
Assunto principal:
Tolueno
/
Gerenciamento de Resíduos
/
Poluição do Ar
/
1-Propanol
/
Compostos Orgânicos Voláteis
Tipo de estudo:
Prognostic_studies
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article