H2S Emissions from a Submerged Pilot‐Scale Fixed Bed Biofilm Reactor |
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| Authors: | Ana Lorena Esteban‐García Raquel Lebrero Manuel Alejandro de los Santos Raúl Muñoz Juan Ignacio Tejero |
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| Institution: | 1. Group of Environmental Engineering, Department of Sciences and Techniques of Water and the Environment, University of Cantabria, Spain;2. Department of Chemical Engineering and Environmental Technology, University of Valladolid, Spain |
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| Abstract: | A study was performed in two submerged, pilot‐scale biofilm bioreactors operated under different conditions to determine the relationship between the operating parameters and H2S emission. H2S was always detected in the exhaust air at concentrations varying from 1 to 353 ppmv. The specific aeration rate was the most influencing parameter, with As < 30  kg COD (dissolved oxygen concentrations <4 mg L?1) increasing noticeably the H2S production. The periodical removal of the accumulated sludge reduced H2S emissions by ～14%. |
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| Keywords: | Bioreactor Deodorization Hydrogen sulfide Odorous emissions |
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