Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10395244 | Bioresource Technology | 2011 | 7 Pages |
Abstract
The present work aims to use a two-stage biotrickling filters for simultaneous treatment of hydrogen sulphide (H2S), methyl mercaptan (MM), dimethyl sulphide (DMS) and dimethyl disulphide (DMDS). The first biofilter was inoculated with Acidithiobacillus thiooxidans (BAT) and the second one with Thiobacillus thioparus (BTT). For separate feeds of reduced sulphur compounds (RSC), the elimination capacity (EC) order was DMDSÂ >Â DMSÂ >Â MM. The EC values were 9.8Â gMM-S/m3/h (BTT; 78% removal efficiency (RE); empty bed residence time (EBRT) 58Â s), 36Â gDMDS-S/m3/h (BTT; 94.4% RE; EBRT 76Â s) and 57.5Â gH2S-S/m3/h (BAT; 92% RE; EBRT 59Â s). For the simultaneous removal of RSC in BTT, an increase in the H2S concentration from 23 to 293Â ppmv (EBRT of 59Â s) inhibited the RE of DMS (97-84% RE), DMDS (86-76% RE) and MM (83-67% RE). In the two-stage biofiltration, the RE did not decrease on increasing the H2S concentration from 75 to 432Â ppmv.
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Process Chemistry and Technology
Authors
MartÃn RamÃrez, Maikel Fernández, Claudia Granada, Sylvie Le Borgne, José Manuel Gómez, Domingo Cantero,