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標題: Water transformation in the media of biofilters controlled by Rhodococcus fascians in treating an ethyl acetate-contaminated airstream
作者: Hwang, S.C.J.
Wu, S.J.
Lee, C.M.
關鍵字: biofiltration;model
Project: Journal of the Air & Waste Management Association
期刊/報告no:: Journal of the Air & Waste Management Association, Volume 52, Issue 5, Page(s) 511-520.
Biofilters do not provide much water for bacteria to grow. To use them efficiently and properly, it is essential to understand the kinetics of water transformation and to control moisture levels. This study aims to clarify whether the metabolism of microorganisms will improve the water-holding capacity of media or will intensify drying. This experiment was conducted in duplicate, that is, both with and without bacterial inoculation. Both the constant water content mode and the declining water content mode show that microbial growth in a log phase will enhance drying. In contrast, the bacteria growing in a logarithmic decline phase will improve water-holding capacity. Basically, water evaporation can result from the latent heat obtained from microbial respiration or from the physical temperature difference between the unsaturated air and the wet media. Two ways that biofilters can gain water are from water incorporated into bacteria cells and from water obtained from the oxidation of volatile organic compounds (VOCs).
ISSN: 1047-3289
Appears in Collections:環境工程學系所

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