Mendoza, J.A.Veiga, María CarmenKennes, Christian2014-10-282014-10-282003-06Mendoza 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.DOI: 10.1002/jctb.846http://hdl.handle.net/2183/13741The 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.engThe definitive version is available at http://onlinelibrary.wiley.com/Air pollution controlCloggingDownflow biofilterReactor designToluenejournal articleopen access