title: Dimethyl sulfide biofiltration using immobilized Hyphomicrobium VS and Thiobacillus thioparus TK-m in sugarcane bagasse.
abstract: Sugarcane bagasse was used as a carrier material of microorganisms in two different biofilters used to remove dimethyl sulfide (DMS) from a gas stream. The first biofilter was inoculated with Hyphomicrobium VS and the second with Thiobacillus thioparus Tk-m. During the operation of the biofilters the empty bed residence time (EBRT) was varied from 90 to 180 seconds and the inlet concentration of DMS from 12 to 50 ppmv. The inlet load was varied in the range of 0.62 to 5.2 (g DMS/m3 h). The maximum elimination capacity (EC) of the biofilter inoculated with Hyphomicrobium VS was 5 g DMS/m3 h; however, for the biofilter inoculated with T. thioparus Tk-m the maximum EC was 3.9 g DMS/m3 h. For T. thioparus TK-m the maximum removal efficiency (RE) obtained was 85.1 +/- 5.2% at 12 ppmv DMS inlet concentration, inlet load of 0.62 g DMS/m3 h and 180 s EBRT. The highest removal efficiency for Hyphomicrobium VS was 97.6 + 4.8% at 12 ppmv DMS inlet concentration, load of 0.62 g DMS/m3 h and 180 s EBRT.
authors.affiliation: Department of Chemical Engineering, Faculty of Chemistry and Pharmacy, Central University "Marta Abreu" of Las Villas, Santa Clara, Cuba. hectort@uclv.edu.cu
authors.forename: H
authors.initials: H
authors.lastname: Treto Fernández
authors.forename: I
authors.initials: I
authors.lastname: Rodríguez Rico
authors.forename: J
authors.initials: J
authors.lastname: Jover de la Prida
authors.forename: H
authors.initials: H
authors.lastname: Van Langenhove
mesh_terms: D000393:Air Pollutants / Q000302:isolation & purification / Q000378:metabolism*; D000397:Air Pollution / Q000517:prevention & control; D018914:Cells, Immobilized / Q000378:metabolism*; D005240:Feasibility Studies; D020582:Hyphomicrobium / Q000378:metabolism*; D031786:Saccharum / Q000382:microbiology*; D013440:Sulfides / Q000378:metabolism*; D013855:Thiobacillus / Q000378:metabolism*
chemical_list: D000393:Air Pollutants; D013440:Sulfides; C004784:dimethyl sulfide