Treatment of mixtures of toluene and n-propanol vapours in a compost-woodchip-based biofilter.

Journal Article

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.

Full Text

Duke Authors

Cited Authors

  • Dixit, RM; Deshmukh, SC; Gadhe, AA; Kannade, GS; Lokhande, SK; Pandey, RA; Vaidya, AN; Mudliar, SN; Deshusses, MA

Published Date

  • April 2012

Published In

Volume / Issue

  • 33 / 7-9

Start / End Page

  • 751 - 760

PubMed ID

  • 22720398

Pubmed Central ID

  • 22720398

Electronic International Standard Serial Number (EISSN)

  • 1479-487X

International Standard Serial Number (ISSN)

  • 0959-3330

Digital Object Identifier (DOI)

  • 10.1080/09593330.2011.592226


  • eng