Selection of sulfur oxidizing bacterium for sulfide removal in sulfate rich wastewater to enhance biogas production

Sulfur oxidizing bacteria (SOB) were isolated and tested in order to remove sulfide from high sulfate wastewater to reduce the amount of hydrogen sulfide (H2S) in the produced biogas. A promising SOB isolate, designated as isolate T307, was selected due to its best sulfide removal (86.7%) in the eff...

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Autores principales:	Kantachote,Duangporn, Charernjiratrakul,Wilawan, Noparatnaraporn,Napavarn, Oda,Kohei
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2008
Materias:	biodesulfurization biogas effluent from a sulfate reduction reactor sulfide
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000200013
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spelling	oai:scielo:S0717-345820080002000132009-01-21Selection of sulfur oxidizing bacterium for sulfide removal in sulfate rich wastewater to enhance biogas productionKantachote,DuangpornCharernjiratrakul,WilawanNoparatnaraporn,NapavarnOda,Kohei biodesulfurization biogas effluent from a sulfate reduction reactor sulfide Sulfur oxidizing bacteria (SOB) were isolated and tested in order to remove sulfide from high sulfate wastewater to reduce the amount of hydrogen sulfide (H2S) in the produced biogas. A promising SOB isolate, designated as isolate T307, was selected due to its best sulfide removal (86.7%) in the effluent of a sulfate reduction reactor (SRR) over a 24 hrs incubation. The bacterium was able to grow better as a mixotroph (yeast extract as a carbon source) than as a chemolithoautotroph. In addition, as a heterotroph, the bacterium grew well with yeast extract and peptone. Based on partial 16S rRNA gene sequence, the isolated T307 was an Alcaligenes sp. and was able to convert most of sulfide species (total sulfide: TS; dissolved sulfide: DS and H2S) into elemental sulfur or sulfate over a 20 hrs period of cultivation by controlling the speed of shaking. In a biogas reactor set, after pre-treating a sulfide medium with Alcaligenes sp. T307 there was a much higher specific yield of CH4 (238 ml CH4 g-1COD removed) and more biogas (154 ml L-1 d-1) was produced with the biogas containing more methane (48.1% CH4, 51.5% CO2 and 0.41% H2S) in comparison to a control with a specific yield of CH4, (72 ml CH4 g-1COD removed) 86 ml L-1 d-1 biogas produced with a composition of 35.5% CH4, 63.7% CO2 and 0.86% H2S.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.11 n.2 20082008-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000200013en10.4067/S0717-34582008000200013
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	biodesulfurization biogas effluent from a sulfate reduction reactor sulfide
spellingShingle	biodesulfurization biogas effluent from a sulfate reduction reactor sulfide Kantachote,Duangporn Charernjiratrakul,Wilawan Noparatnaraporn,Napavarn Oda,Kohei Selection of sulfur oxidizing bacterium for sulfide removal in sulfate rich wastewater to enhance biogas production
description	Sulfur oxidizing bacteria (SOB) were isolated and tested in order to remove sulfide from high sulfate wastewater to reduce the amount of hydrogen sulfide (H2S) in the produced biogas. A promising SOB isolate, designated as isolate T307, was selected due to its best sulfide removal (86.7%) in the effluent of a sulfate reduction reactor (SRR) over a 24 hrs incubation. The bacterium was able to grow better as a mixotroph (yeast extract as a carbon source) than as a chemolithoautotroph. In addition, as a heterotroph, the bacterium grew well with yeast extract and peptone. Based on partial 16S rRNA gene sequence, the isolated T307 was an Alcaligenes sp. and was able to convert most of sulfide species (total sulfide: TS; dissolved sulfide: DS and H2S) into elemental sulfur or sulfate over a 20 hrs period of cultivation by controlling the speed of shaking. In a biogas reactor set, after pre-treating a sulfide medium with Alcaligenes sp. T307 there was a much higher specific yield of CH4 (238 ml CH4 g-1COD removed) and more biogas (154 ml L-1 d-1) was produced with the biogas containing more methane (48.1% CH4, 51.5% CO2 and 0.41% H2S) in comparison to a control with a specific yield of CH4, (72 ml CH4 g-1COD removed) 86 ml L-1 d-1 biogas produced with a composition of 35.5% CH4, 63.7% CO2 and 0.86% H2S.
author	Kantachote,Duangporn Charernjiratrakul,Wilawan Noparatnaraporn,Napavarn Oda,Kohei
author_facet	Kantachote,Duangporn Charernjiratrakul,Wilawan Noparatnaraporn,Napavarn Oda,Kohei
author_sort	Kantachote,Duangporn
title	Selection of sulfur oxidizing bacterium for sulfide removal in sulfate rich wastewater to enhance biogas production
title_short	Selection of sulfur oxidizing bacterium for sulfide removal in sulfate rich wastewater to enhance biogas production
title_full	Selection of sulfur oxidizing bacterium for sulfide removal in sulfate rich wastewater to enhance biogas production
title_fullStr	Selection of sulfur oxidizing bacterium for sulfide removal in sulfate rich wastewater to enhance biogas production
title_full_unstemmed	Selection of sulfur oxidizing bacterium for sulfide removal in sulfate rich wastewater to enhance biogas production
title_sort	selection of sulfur oxidizing bacterium for sulfide removal in sulfate rich wastewater to enhance biogas production
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000200013
work_keys_str_mv	AT kantachoteduangporn selectionofsulfuroxidizingbacteriumforsulfideremovalinsulfaterichwastewatertoenhancebiogasproduction AT charernjiratrakulwilawan selectionofsulfuroxidizingbacteriumforsulfideremovalinsulfaterichwastewatertoenhancebiogasproduction AT noparatnarapornnapavarn selectionofsulfuroxidizingbacteriumforsulfideremovalinsulfaterichwastewatertoenhancebiogasproduction AT odakohei selectionofsulfuroxidizingbacteriumforsulfideremovalinsulfaterichwastewatertoenhancebiogasproduction
_version_	1718441784630050816

Selection of sulfur oxidizing bacterium for sulfide removal in sulfate rich wastewater to enhance biogas production

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