On-site reduction of nitrogen oxides at an emission hotspot using actively vented photocatalytic reactors in a highway tunnel

Clemens Ehm; Max O. Frohmüller; Thomas Flassak; Dietmar Stephan

doi:10.1007/s42452-022-05035-7

SN Applied Sciences (Apr 2022)

On-site reduction of nitrogen oxides at an emission hotspot using actively vented photocatalytic reactors in a highway tunnel

Clemens Ehm,
Max O. Frohmüller,
Thomas Flassak,
Dietmar Stephan

Affiliations

Clemens Ehm: Department of Building Materials and Construction Chemistry, Technische Universität Berlin
Max O. Frohmüller: Department of Building Materials and Construction Chemistry, Technische Universität Berlin
Thomas Flassak: Lohmeyer GmbH
Dietmar Stephan: Department of Building Materials and Construction Chemistry, Technische Universität Berlin

DOI: https://doi.org/10.1007/s42452-022-05035-7
Journal volume & issue: Vol. 4, no. 5
pp. 1 – 12

Abstract

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Article Highlights This study shows the persisting situation of very highly polluted air with on-site measurements in a road tunnel near Berlin (Germany). We investigate the solution approach to clean the tunnel air by oxidizing and fixating pollutants with photocatalysts before the air is released off the tunnel. We can show that about 25% of nitric oxides produced due to the traffic in the tunnel can be removed with a combination of active ventilation and photocatalytic depletion.

Published in SN Applied Sciences

ISSN: 2523-3963 (Print); 2523-3971 (Online)
Publisher: Springer
Country of publisher: Switzerland
LCC subjects: Science; Technology
Website: https://www.springer.com/snas

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