Degradation of hydrogen sulfide by immobilized Thiobacillus thioparus in continuous biotrickling reactor fed with synthetic gas mixture

G. Tóth, N. Nemestóthy, K. Bélafi-Bakó, D. Vozik, P. Bakonyi

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

In this work, a sulfur-oxidizing bacteria, Thiobacillus thioparus (immobilized on Mavicell B support) was employed to develop a microaerobic, biotrickling filter reactor for the efficient elimination of H2S from synthetic (bio)gas. To test the capability of this particular strain in oxygen-limited atmosphere, fixed bed reactor was operated under 0.25-5 vol.% O2 concentrations and its H2S decomposing ability was statistically evaluated. It was found that the system achieved 100% H2S elimination efficiency when at least 2.5 vol.% oxygen was provided. Further decrease of O2 levels to 0.25-1 vol.% cut the reliability and caused the loss of H2S biodegradation performance. The results of this study contributed to understand the behavior of T. thioparus under microaerobic conditions and thus may help to design efficient gas purification processes for biogas technology.

Original languageEnglish
Pages (from-to)185-191
Number of pages7
JournalInternational Biodeterioration and Biodegradation
Volume105
DOIs
Publication statusPublished - Nov 1 2015

Fingerprint

Thiobacillus
Hydrogen Sulfide
Biogas
Hydrogen sulfide
hydrogen sulfide
biogas
Gas mixtures
Gases
Oxygen
Gas fuel purification
Degradation
oxygen
degradation
Biofuels
Biodegradation
Atmosphere
Sulfur
biodegradation
Bacteria
sulfur

Keywords

  • Biogas
  • HS elimination
  • Microaerobic
  • Packed bed reactor
  • T. thioparus

ASJC Scopus subject areas

  • Waste Management and Disposal
  • Microbiology
  • Biomaterials

Cite this

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abstract = "In this work, a sulfur-oxidizing bacteria, Thiobacillus thioparus (immobilized on Mavicell B support) was employed to develop a microaerobic, biotrickling filter reactor for the efficient elimination of H2S from synthetic (bio)gas. To test the capability of this particular strain in oxygen-limited atmosphere, fixed bed reactor was operated under 0.25-5 vol.{\%} O2 concentrations and its H2S decomposing ability was statistically evaluated. It was found that the system achieved 100{\%} H2S elimination efficiency when at least 2.5 vol.{\%} oxygen was provided. Further decrease of O2 levels to 0.25-1 vol.{\%} cut the reliability and caused the loss of H2S biodegradation performance. The results of this study contributed to understand the behavior of T. thioparus under microaerobic conditions and thus may help to design efficient gas purification processes for biogas technology.",
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T1 - Degradation of hydrogen sulfide by immobilized Thiobacillus thioparus in continuous biotrickling reactor fed with synthetic gas mixture

AU - Tóth, G.

AU - Nemestóthy, N.

AU - Bélafi-Bakó, K.

AU - Vozik, D.

AU - Bakonyi, P.

PY - 2015/11/1

Y1 - 2015/11/1

N2 - In this work, a sulfur-oxidizing bacteria, Thiobacillus thioparus (immobilized on Mavicell B support) was employed to develop a microaerobic, biotrickling filter reactor for the efficient elimination of H2S from synthetic (bio)gas. To test the capability of this particular strain in oxygen-limited atmosphere, fixed bed reactor was operated under 0.25-5 vol.% O2 concentrations and its H2S decomposing ability was statistically evaluated. It was found that the system achieved 100% H2S elimination efficiency when at least 2.5 vol.% oxygen was provided. Further decrease of O2 levels to 0.25-1 vol.% cut the reliability and caused the loss of H2S biodegradation performance. The results of this study contributed to understand the behavior of T. thioparus under microaerobic conditions and thus may help to design efficient gas purification processes for biogas technology.

AB - In this work, a sulfur-oxidizing bacteria, Thiobacillus thioparus (immobilized on Mavicell B support) was employed to develop a microaerobic, biotrickling filter reactor for the efficient elimination of H2S from synthetic (bio)gas. To test the capability of this particular strain in oxygen-limited atmosphere, fixed bed reactor was operated under 0.25-5 vol.% O2 concentrations and its H2S decomposing ability was statistically evaluated. It was found that the system achieved 100% H2S elimination efficiency when at least 2.5 vol.% oxygen was provided. Further decrease of O2 levels to 0.25-1 vol.% cut the reliability and caused the loss of H2S biodegradation performance. The results of this study contributed to understand the behavior of T. thioparus under microaerobic conditions and thus may help to design efficient gas purification processes for biogas technology.

KW - Biogas

KW - HS elimination

KW - Microaerobic

KW - Packed bed reactor

KW - T. thioparus

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