Treatment of mixtures of toluene andn-propanol vapours in a compost–woodchip-based biofilter

Autor: Sharvari Deshmukh, Atul Narayanrao Vaidya, R.A. Pandey, Sandeep N. Mudliar, Rashmi M. Dixit, Abhijit Gadhe, Marc A. Deshusses, G. S. Kannade, Satish K. Lokhande
Rok vydání: 2012
Předmět:
Zdroj: Environmental Technology. 33:751-760
ISSN: 1479-487X
0959-3330
Popis: 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.
Databáze: OpenAIRE