A comparison between conventional open biofilters and biotrickling filters (BTFs) was carried out through a modeling activity to highlight their role on the air quality in the surroundings of a hypothetical municipal solid waste bio-drying plant. The AERMOD dispersion model was adopted to perform simulations of dispersion of two volatile organic compounds of interest for their impact in terms of odors and cancer risk: dimetil disulfide and benzene. Data on the input waste were retrieved from statistics of a province in the North of Italy. Using BTFs instead of conventional biofilters leads to significant improvements in the air quality around a bio-drying plant, quantifiable with a reduction of the annual mean concentrations higher than 90% in the vicinity of the plant. These improvements are achieved especially because of the higher release height of BTFs and the higher velocity of the outgoing air flow.

Comparison between the environmental impacts of biotrickling filters and biofilters applied to waste bio-drying

Schiavon, Marco;Rada, Elena Cristina;Ragazzi, Marco;
2014-01-01

Abstract

A comparison between conventional open biofilters and biotrickling filters (BTFs) was carried out through a modeling activity to highlight their role on the air quality in the surroundings of a hypothetical municipal solid waste bio-drying plant. The AERMOD dispersion model was adopted to perform simulations of dispersion of two volatile organic compounds of interest for their impact in terms of odors and cancer risk: dimetil disulfide and benzene. Data on the input waste were retrieved from statistics of a province in the North of Italy. Using BTFs instead of conventional biofilters leads to significant improvements in the air quality around a bio-drying plant, quantifiable with a reduction of the annual mean concentrations higher than 90% in the vicinity of the plant. These improvements are achieved especially because of the higher release height of BTFs and the higher velocity of the outgoing air flow.
2014
5th International Symposium on Energy from biomass and waste
Venice2014
Venice
17 - 20 November 2014
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11383/2127082
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