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Autotrophic deodorization of hydrogen sulfide in a biotrickling filter
Author(s) -
Jin Yaomin,
Veiga María C,
Kennes Christian
Publication year - 2005
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.1275
Subject(s) - hydrogen sulfide , volumetric flow rate , inlet , chemistry , sulfide , sulfate , liquid flow , filter (signal processing) , hydrogen , chromatography , pulp and paper industry , waste management , environmental engineering , environmental chemistry , nuclear chemistry , environmental science , sulfur , organic chemistry , geology , physics , computer science , mechanics , engineering , computer vision , quantum mechanics , geomorphology
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