The biological removal of pollutants, especially through biotrickling filters (BTFs), has recently become attractive for the low investment and operational costs and the low secondary pollution. This paper is intended to investigate the state of the art on BTF applications. After an overview on the biodegradation process and the typical parameters involved, this paper presents the analysis of a group of 16 literature studies chosen as the references for this sector. The reference studies differ one from another by the pollutants treated (volatile organic compounds, hydrogen sulphide, nitrogen oxides and trimethylamine), the geometry and size of the BTFs, and the procedures of the tests. The reference studies are analyzed and discussed in terms of the operational conditions and the results obtained, especially with respect to the removal efficiencies and the elimination capacities of the pollutants considered. Empty bed residence time, pollutant loading rate, temperature, pH, oxygen availability, trickling liquid flow rate, inoculum selection and biomass control strategies revealed to be the most important operational factors influencing the removal performance of a BTF.

Air pollution control through biotrickling filters: a review considering operational aspects and expected performance / Schiavon, Marco; Ragazzi, Marco; Rada, Elena Cristina; Torretta, Vincenzo. - In: CRITICAL REVIEWS IN BIOTECHNOLOGY. - ISSN 1549-7801. - ELETTRONICO. - 2015, 36:6(2016), pp. 1143-1155. [10.3109/07388551.2015.1100586]

Air pollution control through biotrickling filters: a review considering operational aspects and expected performance

Schiavon, Marco;Ragazzi, Marco;Rada, Elena Cristina;Torretta, Vincenzo
2016

Abstract

The biological removal of pollutants, especially through biotrickling filters (BTFs), has recently become attractive for the low investment and operational costs and the low secondary pollution. This paper is intended to investigate the state of the art on BTF applications. After an overview on the biodegradation process and the typical parameters involved, this paper presents the analysis of a group of 16 literature studies chosen as the references for this sector. The reference studies differ one from another by the pollutants treated (volatile organic compounds, hydrogen sulphide, nitrogen oxides and trimethylamine), the geometry and size of the BTFs, and the procedures of the tests. The reference studies are analyzed and discussed in terms of the operational conditions and the results obtained, especially with respect to the removal efficiencies and the elimination capacities of the pollutants considered. Empty bed residence time, pollutant loading rate, temperature, pH, oxygen availability, trickling liquid flow rate, inoculum selection and biomass control strategies revealed to be the most important operational factors influencing the removal performance of a BTF.
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Schiavon, Marco; Ragazzi, Marco; Rada, Elena Cristina; Torretta, Vincenzo
Air pollution control through biotrickling filters: a review considering operational aspects and expected performance / Schiavon, Marco; Ragazzi, Marco; Rada, Elena Cristina; Torretta, Vincenzo. - In: CRITICAL REVIEWS IN BIOTECHNOLOGY. - ISSN 1549-7801. - ELETTRONICO. - 2015, 36:6(2016), pp. 1143-1155. [10.3109/07388551.2015.1100586]
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11572/128780
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