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Effects of irrigation and water content of packings on
Växjö University, Faculty of Mathematics/Science/Technology, School of Technology and Design.
Växjö University, Faculty of Mathematics/Science/Technology, School of Technology and Design.ORCID iD: 0000-0003-0841-7065
Växjö University, Faculty of Mathematics/Science/Technology, School of Technology and Design.ORCID iD: 0000-0003-2961-296X
2005 (English)In: Biochemical Engineering Journal, ISSN 1369-703X, Vol. 24, no 3, p. 185-193Article in journal (Refereed) Published
Abstract [en]

The main objective of this investigation is to determine the effect of different physical parameters on the performance of biofilters, treating

hydrophobic compounds. In this respect, the effects of irrigation and water content of packings on the removal efficiency of bed in different

pollutant loading rates, and gas phase flow rates, is studied. Alpha-pinene, which is produced from variety of industrial wood products, pulp

and paper industries, and fragrance production units, has been selected as a model compound. Since the effectiveness of biofiltration depends

strongly upon water solubility of compounds, in the case of alpha-pinene (2.5 ppm, at 25 ◦C), the process of waste gas treatment is faced

with difficulties. In this paper, it is shown that performance of biofilters, treating hydrophobic contaminants, declines due to irrigation. This

reduction is detected by an increase in the outlet concentration from 11% up to 22.5%. Its magnitude depends on the gas velocity inside the

biofilter and outlet concentration of the bed. The result indicated that pore blocking along the bed has less effect on the performance reduction

than diffusion coefficient. Also the inhibitory effects of velocity on biodegradation are considerably higher than the effects of concentration.

In addition, this compost-based biofilter shows noteworthy higher elimination capacities in comparison with previous studied biofiltration

systems. In this study, a maximum elimination capacity of 227 gm−3 of packing h−1 is achieved by 95% of removal efficiency. The maximum

concentration in the inlet gas was 650 mgm−3.

© 2005 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
Växjö: Institutionen för teknik och design , 2005. Vol. 24, no 3, p. 185-193
Keywords [en]
Biofilter; Irrigation; Water content; Hydrophobic; Waste gas treatment; Alpha-pinene
National Category
Energy Engineering
Research subject
Technology (byts ev till Engineering), Bioenergy Technology
Identifiers
URN: urn:nbn:se:vxu:diva-1288OAI: oai:DiVA.org:vxu-1288DiVA, id: diva2:205089
Available from: 2007-05-24 Created: 2007-05-24 Last updated: 2017-01-13Bibliographically approved

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Sanati, MehriWelander, UlrikaRupar-Gadd, Katarina

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CiteExportLink to record
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