Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6973816 | Process Safety and Environmental Protection | 2018 | 9 Pages |
Abstract
A novel gas biofilter, namely the tubular biofilter (TBF) was developed and successfully used for toluene removal from waste gas streams. To furtherly explore its performance for methyl isobutyl ketone (MIBK) removal, the TBF was continuously operated for over 284 days under various organic loading rates (OLRs) (ranging from 20 to 340âg mâ3âhâ1) and gas empty residence times (EBRTs) (ranging from 15 to 5âs) in this paper. The results show that the TBF could achieve a high MIBK removal efficiency (RE) at a short gas EBRT of 5âs. The mean maximum REs of MIBK were 98.67%, 88.95%, 77.93%, 71.74%, and 55.92% under the OLRs of 19.89, 39.33, 78.96, 160.17, 338.02âg mâ3âhâ1, respectively. The maximum elimination capacity for MIBK was as high as 200âg mâ3âhâ1, while the critical load was about 20 - 30âg mâ3âhâ1. Based on the Michaelis-Menten kinetic model, the biokinetic constants Ks was found to be 8.56âg mâ3 and rmax was 0.14âg mâ3âhâ1. The biomass clogging appeared at the EC of over 80âg mâ3âhâ1. The TBF showed a high efficient performance for MIBK removal due to the enhancement of highly porous polyurethane sponge and new tubular configurations.
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Physical Sciences and Engineering
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Authors
Hong Chen, Yanxiao Wei, Liang Peng, Jialing Ni, Yan Guo, Jiayuan Ji, Bo Jiang, Guanlong Yu,