| Title: | Enhanced removal of hydrophobic volatile organic compounds in biofilters and biotrickling filters: A review on the use of surfactants and the addition of hydrophilic compounds |
| Author(s): | Lamprea Pineda PA; Demeestere K; Toledo M; Van Langenhove H; Walgraeve C; |
| Address: | "Research Group EnVOC, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent Belgium. Electronic address: PaulaAlejandra.LampreaPineda@UGent.be. Research Group EnVOC, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent Belgium. Electronic address: Kristof.Demeestere@UGent.be. Department of Inorganic Chemistry and Chemical Engineering, Faculty of Science, University of Cordoba (Campus Universitario de Rabanales), Carretera N-IV, Km 396, Marie Curie Building, 14071, Cordoba, Spain. Electronic address: z22topam@uco.es. Research Group EnVOC, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent Belgium. Electronic address: Herman.VanLangenhove@UGent.be. Research Group EnVOC, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent Belgium. Electronic address: christophe.walgraeve@ugent.be" |
| DOI: | 10.1016/j.chemosphere.2021.130757 |
| ISSN/ISBN: | 1879-1298 (Electronic) 0045-6535 (Linking) |
| Abstract: | "The use of biological reactors to remove volatile organic compounds (VOCs) from waste gas streams has proven to be a cost-effective and sustainable technique. However, hydrophobic VOCs exhibit low removal, mainly due to their limited bioavailability for the microorganisms. Different strategies to enhance their removal in bio(trickling)filters have been developed with promising results. In this review, two strategies, i.e. the use of surfactants and hydrophilic compounds, for enhancing the removal of hydrophobic VOCs in bio(trickling)filters are discussed. The complexity of the processes and mechanisms behind both strategies are addressed to fully understand and exploit their potential and rapid implementation at full-scale. Mass transfer and biological aspects are discussed for each strategy, and an in-depth comparison between studies carried out over the last two decades has been performed. This review identifies additional strategies to further improve the application of (bio)surfactants and/or hydrophilic VOCs, and it provides recommendations for future studies in this field" |
| Keywords: | *Air Pollutants/analysis Bioreactors Filtration Hydrophobic and Hydrophilic Interactions Surface-Active Agents *Volatile Organic Compounds/analysis Bioavailability Biofiltration Co-metabolism Kinetic limitation Mass transfer limitation Surfactants VOCs; |
| Notes: | "MedlineLamprea Pineda, Paula Alejandra Demeestere, Kristof Toledo, Manuel Van Langenhove, Herman Walgraeve, Christophe eng Review England 2021/06/18 Chemosphere. 2021 Sep; 279:130757. doi: 10.1016/j.chemosphere.2021.130757. Epub 2021 May 14" |
