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Effects of irrigation and water content of packings on alpha-pinene vapours biofiltration performance

Bagherpour, MB; Nikazar, M; Welander, U; Bonakdarpour, B and Sanati, Mehri LU (2005) In Biochemical Engineering Journal 24(3). p.185-193
Abstract
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... (More)
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 g m[-3] of packing h[-1] is achieved by 95% of removal efficiency. The maximum concentration in the inlet gas was 650 mg m[-3]. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Biofilter, irrigation, water content, hydrophobic, waste gas treatment, alpha-pinene
in
Biochemical Engineering Journal
volume
24
issue
3
pages
185 - 193
publisher
The Association for the Study of Animal Behaviour / Elsevier B.V.
external identifiers
  • Scopus:19344372012
ISSN
1369-703X
DOI
10.1016/j.bej.2005.02.015
language
English
LU publication?
yes
id
78537c69-501a-41e6-8a73-cbe2883d2872 (old id 645172)
alternative location
http://cat.inist.fr/?aModele=afficheN&cpsidt=16800276
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V5N-4FRJM28-3&_user=745831&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000041498&_version=1&_urlVersion=0&_userid=745831&md5=75f4eec1976a76dd834add66e72aa1fe
date added to LUP
2008-02-07 09:31:08
date last changed
2016-10-13 04:33:07
@misc{78537c69-501a-41e6-8a73-cbe2883d2872,
  abstract     = {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 g m[-3] of packing h[-1] is achieved by 95% of removal efficiency. The maximum concentration in the inlet gas was 650 mg m[-3].},
  author       = {Bagherpour, MB and Nikazar, M and Welander, U and Bonakdarpour, B and Sanati, Mehri},
  issn         = {1369-703X},
  keyword      = {Biofilter,irrigation,water content,hydrophobic,waste gas treatment,alpha-pinene},
  language     = {eng},
  number       = {3},
  pages        = {185--193},
  publisher    = {ARRAY(0xb5a81c0)},
  series       = {Biochemical Engineering Journal},
  title        = {Effects of irrigation and water content of packings on alpha-pinene vapours biofiltration performance},
  url          = {http://dx.doi.org/10.1016/j.bej.2005.02.015},
  volume       = {24},
  year         = {2005},
}