Biofiltration of H2S-rich biogas using Acidithiobacillus thiooxidans

Aita, Bruno C.; Mayer, Flávio Dias; Muratt, Diana Tomazi; Brondani, Michel; Pujol, Stefen Barbosa; Denardi, Laura Bedin; Hoffmann, Ronaldo; Silveira, Djalma Dias da

doi:10.1007/s10098-015-1043-5

Cited by 41 publications

(18 citation statements)

References 64 publications

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“…They have been used in large-scale gas applications for the control of H 2 S and other odorous emissions from WWTPs and other industries [40]. The main benefits are the low operation cost, low-energy and chemical requirements, as well as high removal effciencies (REs), usually above 99% [50].…”

Section: Biofiltration Technologiesmentioning

confidence: 99%

“…The bacterial diversity in this BTF was limited due to the low pH and only one prominent band corresponding to Acidithiobacillus thiooxidans was observed. This bacterium is the most acidophilic SOB and has been considered an ideal inoculum for the biofiltration of H 2 S in biogas [50,81]. Its pH range for growth is between 0.5 and 5.5 with an optimum at pH 2-3 [36].…”

Section: Aerobic Biofiltrationmentioning

confidence: 99%

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Microbial Ecology of Biofiltration Units Used for the Desulfurization of Biogas

Borgne

Baquerizo

2019

ChemEngineering

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Bacterial communities’ composition, activity and robustness determines the effectiveness of biofiltration units for the desulfurization of biogas. It is therefore important to get a better understanding of the bacterial communities that coexist in biofiltration units under different operational conditions for the removal of H2S, the main reduced sulfur compound to eliminate in biogas. This review presents the main characteristics of sulfur-oxidizing chemotrophic bacteria that are the base of the biological transformation of H2S to innocuous products in biofilters. A survey of the existing biofiltration technologies in relation to H2S elimination is then presented followed by a review of the microbial ecology studies performed to date on biotrickling filter units for the treatment of H2S in biogas under aerobic and anoxic conditions.

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Section: Biofiltration Technologiesmentioning

confidence: 99%

Section: Aerobic Biofiltrationmentioning

confidence: 99%

Microbial Ecology of Biofiltration Units Used for the Desulfurization of Biogas

Borgne

Baquerizo

2019

ChemEngineering

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“…Woods a largely available and cost‐effective resource, thus becoming a promising packing material for biofiltration. Moreover, current forest management practices provide huge amounts of low‐quality wood, which could be used in the construction of biofilters . While estimated annual material costs for PNWR were between 10 and 16 €m −3 y −1 represent a 25% lower cost was estimated for the PPWR at the local prices of the present study (Table ).…”

Section: Discussionmentioning

confidence: 63%

Characterization and evaluation of poplar and pine wood in twin biotrickling filters treating a mixture of NH₃, H₂S, butyric acid, and ethylmercaptan

Hernández

Dorado

Lafuente

et al. 2016

Env Prog and Sustain Energy

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“…Monitoring H 2 S concentration in the aeration stream is not only necessary to evaluate the performance of the desulfurization system but also for safety aspects. It has been reported that intense headaches are experienced after exposure to 50 ppm v of H 2 S, while exposure to 300 ppm v of H 2 S is lethal to humans …”

Section: Resultsmentioning

confidence: 99%

“…The presence of H 2 S is a key limiting factor for the use of biogas to produce heat and power as it causes corrosion to internal combustion engines and industrial pipes . For instance, the maximum allowable concentration of H 2 S in biogas to be used in combined heat and power processes is in the range of 80–400 ppm v . Therefore, important efforts must be made to purify highly H 2 S‐laden biogas for energy production.…”

Section: Introductionmentioning

confidence: 99%

Fully aerobic two‐step desulfurization process for purification of highly H₂S‐laden biogas

Quijano

Figueroa‐González

Buitrón

2018

J of Chemical Tech & Biotech

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BACKGROUND: A two-step desulfurization technology coupling an absorption column with an airlift bioreactor (ALR) provided with continuous aeration was studied. This setup allowed the full oxygenation of the liquid phase, overcoming the typical issues of aerobic biotrickling filters such as elemental sulfur accumulation, biogas dilution or generation of explosive mixtures. RESULTS: Removal efficiencies of 100%were achieved under all the S-H 2 S inlet loading rates tested (28, 56 and 112 gS-H 2 S m −3 h −1 ). The main sulfur compound in the liquid phase was SO 4 2− regardless of the inlet load tested with and average sulfur oxidation performance of ∼80%. The robustness of the desulfurization system over a 7-days shutdown period was also evaluated. H 2 S removal efficiency of 100% was recorded only 10 h after restarting the system without H 2 S stripping from the ALR. The microbial communities present in the inoculum and those established in the desulfurization system at the end of the experimental time were characterized by 16S rRNA pyrosequencing. CONCLUSION: Biogas laden with H 2 S concentrations ranging from 2500 to 10 000 ppm v was successfully desulfurized in the fully aerobic two-step process presented. High and stable removal performance was achieved even after a long-term shutdown period. [ S-SO 2-4 ] ALR Liquid,out S-Sulfate concentration at the outlet of the ALR (g m −3 )

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Biofiltration of H2S-rich biogas using Acidithiobacillus thiooxidans

Cited by 41 publications

References 64 publications

Microbial Ecology of Biofiltration Units Used for the Desulfurization of Biogas

Microbial Ecology of Biofiltration Units Used for the Desulfurization of Biogas

Characterization and evaluation of poplar and pine wood in twin biotrickling filters treating a mixture of NH₃, H₂S, butyric acid, and ethylmercaptan

Fully aerobic two‐step desulfurization process for purification of highly H₂S‐laden biogas

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Biofiltration of H2S-rich biogas using Acidithiobacillus thiooxidans

Cited by 41 publications

References 64 publications

Microbial Ecology of Biofiltration Units Used for the Desulfurization of Biogas

Microbial Ecology of Biofiltration Units Used for the Desulfurization of Biogas

Characterization and evaluation of poplar and pine wood in twin biotrickling filters treating a mixture of NH3, H2S, butyric acid, and ethylmercaptan

Fully aerobic two‐step desulfurization process for purification of highly H2S‐laden biogas

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Characterization and evaluation of poplar and pine wood in twin biotrickling filters treating a mixture of NH₃, H₂S, butyric acid, and ethylmercaptan

Fully aerobic two‐step desulfurization process for purification of highly H₂S‐laden biogas