Biofiltration of waste gases in a reactor with a split-feed
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Biofiltration of waste gases in a reactor with a split-feedFecha
2003-06Cita bibliográfica
Mendoza JA, Veiga MC, Kennes C. Biofiltration of waste gases in a reactor with a split-feed. Journal of Chemical Technology and Biotechnology. 2003;78(6):703-8.
Resumen
The efficiency of using different feed strategies was evaluated in the case of a gas-phase biofilter packed with an inert carrier material. During a preliminary control-period, the biofilter was first fed with a single downflow feed of toluene. Reactor performance and biomass distribution were evaluated. The feed was then split into two flows before entering the reactor. Different feed ratios were tested during a 6-month period, following the preliminary control stage. Splitting the feed into equal flow rates through the upper and middle part of the biofilter (in a 50 : 50 ratio) improved the performance compared with the single-feed period. Such a high performance could also be maintained when using a higher flow rate for the upper port than for the middle port, with a feed-ratio of approximately 70 : 30, when more biomass was formed in the upper half of the filter bed. However, performance decreased when inverting this ratio from 70 : 30 to 30 : 70, ie when the highest flow rate was fed through the middle port of the biofilter.
Palabras clave
Air pollution control
Clogging
Downflow biofilter
Reactor design
Toluene
Clogging
Downflow biofilter
Reactor design
Toluene
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The definitive version is available at http://onlinelibrary.wiley.com/