Modelling of the biofiltration of reduced sulphur compounds through biotrickling filters connected in series: Effect of H2S

Background: The behaviour of two biotrickling filters connected in serie (BTF) inoculated with Acidithiobacillus thiooxidans and Thiobacillus thioparus, biodegrading hydrogen sulphide (H2S) and dimethyl sulphide (DMS) simultaneously were studied. A model which considers gas to liquid mass transfer a...

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Autores principales:	Silva,Javier, Morales,Marjorie, Cáceres,Manuel, Morales,Paulina, Aroca,Germán
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2012
Materias:	biofiltration DMS hydrogen sulphide mathematical model Thiobacillus thioparus
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582012000300007
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spelling	oai:scielo:S0717-345820120003000072012-06-06Modelling of the biofiltration of reduced sulphur compounds through biotrickling filters connected in series: Effect of H2SSilva,JavierMorales,MarjorieCáceres,ManuelMorales,PaulinaAroca,Germán biofiltration DMS hydrogen sulphide mathematical model Thiobacillus thioparus Background: The behaviour of two biotrickling filters connected in serie (BTF) inoculated with Acidithiobacillus thiooxidans and Thiobacillus thioparus, biodegrading hydrogen sulphide (H2S) and dimethyl sulphide (DMS) simultaneously were studied. A model which considers gas to liquid mass transfer and biooxidation in the biofilm attached to the support is developed. Additionally, a fixed bed biotrickling filter where the microorganism is immobilized in a biofilm which degrades a mixture of H2S and DMS is implemented. Validation of the model was carried out using experimental data obtained at different H2S and DMS loads. Results: The inhibitory effect caused by the presence of H2S on the DMS is observed, which is evidenced by the decrease of the DMS removal efficiency from 80 to 27%, due to the preference that T. thioparus has by simple metabolism. H2S is not affected by the DMS, with removal efficiencies of 95 to 97%, but it decreases at high concentrations of the compound, due to the inhibition of metabolism by high H2S input loads. The model which describes the BFT fits successfully with the experimental results and it has a high sensitivity to inhibition parameters. Conclusion: It is shown that the microorganism has a high affinity for H2S, producing substrate inhibition when the concentration is high. The H2S is able to inhibit the DMS biooxidation, whereas the DMS does not affect the H2S biooxidation.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.15 n.3 20122012-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582012000300007en
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	biofiltration DMS hydrogen sulphide mathematical model Thiobacillus thioparus
spellingShingle	biofiltration DMS hydrogen sulphide mathematical model Thiobacillus thioparus Silva,Javier Morales,Marjorie Cáceres,Manuel Morales,Paulina Aroca,Germán Modelling of the biofiltration of reduced sulphur compounds through biotrickling filters connected in series: Effect of H2S
description	Background: The behaviour of two biotrickling filters connected in serie (BTF) inoculated with Acidithiobacillus thiooxidans and Thiobacillus thioparus, biodegrading hydrogen sulphide (H2S) and dimethyl sulphide (DMS) simultaneously were studied. A model which considers gas to liquid mass transfer and biooxidation in the biofilm attached to the support is developed. Additionally, a fixed bed biotrickling filter where the microorganism is immobilized in a biofilm which degrades a mixture of H2S and DMS is implemented. Validation of the model was carried out using experimental data obtained at different H2S and DMS loads. Results: The inhibitory effect caused by the presence of H2S on the DMS is observed, which is evidenced by the decrease of the DMS removal efficiency from 80 to 27%, due to the preference that T. thioparus has by simple metabolism. H2S is not affected by the DMS, with removal efficiencies of 95 to 97%, but it decreases at high concentrations of the compound, due to the inhibition of metabolism by high H2S input loads. The model which describes the BFT fits successfully with the experimental results and it has a high sensitivity to inhibition parameters. Conclusion: It is shown that the microorganism has a high affinity for H2S, producing substrate inhibition when the concentration is high. The H2S is able to inhibit the DMS biooxidation, whereas the DMS does not affect the H2S biooxidation.
author	Silva,Javier Morales,Marjorie Cáceres,Manuel Morales,Paulina Aroca,Germán
author_facet	Silva,Javier Morales,Marjorie Cáceres,Manuel Morales,Paulina Aroca,Germán
author_sort	Silva,Javier
title	Modelling of the biofiltration of reduced sulphur compounds through biotrickling filters connected in series: Effect of H2S
title_short	Modelling of the biofiltration of reduced sulphur compounds through biotrickling filters connected in series: Effect of H2S
title_full	Modelling of the biofiltration of reduced sulphur compounds through biotrickling filters connected in series: Effect of H2S
title_fullStr	Modelling of the biofiltration of reduced sulphur compounds through biotrickling filters connected in series: Effect of H2S
title_full_unstemmed	Modelling of the biofiltration of reduced sulphur compounds through biotrickling filters connected in series: Effect of H2S
title_sort	modelling of the biofiltration of reduced sulphur compounds through biotrickling filters connected in series: effect of h2s
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582012000300007
work_keys_str_mv	AT silvajavier modellingofthebiofiltrationofreducedsulphurcompoundsthroughbiotricklingfiltersconnectedinserieseffectofh2s AT moralesmarjorie modellingofthebiofiltrationofreducedsulphurcompoundsthroughbiotricklingfiltersconnectedinserieseffectofh2s AT caceresmanuel modellingofthebiofiltrationofreducedsulphurcompoundsthroughbiotricklingfiltersconnectedinserieseffectofh2s AT moralespaulina modellingofthebiofiltrationofreducedsulphurcompoundsthroughbiotricklingfiltersconnectedinserieseffectofh2s AT arocagerman modellingofthebiofiltrationofreducedsulphurcompoundsthroughbiotricklingfiltersconnectedinserieseffectofh2s
_version_	1718441856092602368

Modelling of the biofiltration of reduced sulphur compounds through biotrickling filters connected in series: Effect of H2S

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