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Article Dans Une Revue Aerosol Science and Technology Année : 2022

Spray scrubber for nanoparticle removal from incineration fumes from the incineration of waste containing nanomaterials: Theoretical and experimental investigations

Résumé

Nanomaterials (NMs) are currently treated via recycling, incineration and/or landfilling at theirend-of-life. Little is known about the fate of NMs in incineration systems and the efficiency ofthe available flue-gas cleaning technologies (FGCT) in these systems on the removal of NMsbefore stack release. In combination with other FGCT such as cyclones, electrostatic precipitatoror bag filters, scrubbers participate to limit the release of particulate matter (PM) into theatmosphere. No study has been carried out to investigate wet scrubber collection efficiencyregarding nanoparticles under conditions found in a waste incineration plant. In the presentstudy, experimental campaigns were carried out to quantify the performance of a pilot-scalespray scrubber regarding the removal of nanoparticles. The pilot was designed with respect togeometrical, hydrodynamic and residence time scale similitude and operated in gas tempera-ture and humidity conditions representative of full-scale scrubbers in hazardous waste inciner-ation plants. A collection efficiency of 45–62% for a particle size range of 12–90 nm wasreported. To evaluate the experimental results, an existing PM collection model based on the 3main particle collection mechanisms of diffusion, interception and impaction, was adapted forextreme humidity and gas temperature conditions typical of a waste incineration plant.
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Dates et versions

hal-04581871 , version 1 (21-05-2024)

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Emmanuel Adah, Aurélie Joubert, Rachid Boudhan, Marc Henry, Sylvain Durécu, et al.. Spray scrubber for nanoparticle removal from incineration fumes from the incineration of waste containing nanomaterials: Theoretical and experimental investigations. Aerosol Science and Technology, 2022, 56 (1), pp.75 - 91. ⟨10.1080/02786826.2021.1974332⟩. ⟨hal-04581871⟩
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