Autotrophic deodorization of hydrogen sulfide in a biotrickling filter

✍ Scribed by Yaomin Jin; María C Veiga; Christian Kennes

• Book ID: 102314973
• Publisher: Wiley (John Wiley & Sons)
• Year: 2005
• Tongue: English
• Weight: 146 KB
• Volume: 80
• Category: Article
• ISSN: 0268-2575
• DOI: 10.1002/jctb.1275

✦ Synopsis

Abstract

The removal of hydrogen sulfide (H~2~S) from airstreams was studied in a biotrickling filter (BTF) packed with plastic Pall rings operating with counter‐current flows of the air and liquid streams. Experiments were performed at different inlet H~2~S concentrations, air and/or liquid volumetric flow rates, and sulfate concentrations in the recirculating liquid to check their effect on the performance of the BTF. Conversion of H~2~S never dropped below 80% at the highest concentration and reached 100% at low concentrations. A maximum removal rate of 22.5 g H~2~S m^−3^ reactor h^−1^ was observed with 100% removal efficiency. The shortest empty bed retention time studied at which complete H~2~S removal was observed was around 11 s. Conversion of H~2~S was found to slightly increase as the liquid flow rate decreased and as the air flow rate increased. Copyright © 2005 Society of Chemical Industry