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Enrichment and cultivation of a sulfide-oxidizing bacteria consortium for its deploying in full-scale biogas desulfurization
- González Sánchez, Armando, Flores Márquez, Trinidad Eliseo, Revah, Sergio, Morgan Sagastume, Juan Manuel
- Biomass and bioenergy 2014 v.66 pp. 460-464
- activated sludge, bacteria, biogas, biomass, desulfurization, hydrogen sulfide, sulfur, wastewater treatment
- Operational experiences and strategies to get suitable chemolithoautotrophic sulfide-oxidizing biomass from activated sludge wastewater treatment plant for its deploying in a full-scale biogas desulfurization plant are described. An economic nutrient source was applied to foster microbial selection and rapid growth. Respirometry was implemented on full-scale installations to monitor the ability of the specialized bacteria consortium to oxidize reduced sulfur i.e. H2S. During the deployment in the full-scale desulfurization reactor, intermittent sulfide feed from biogas scrubbing was performed to accelerate the startup the desulfurization process.