Model-Based Analysis of Microaeration for Biogas Desulfurization Using a Biomembrane

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F22%3A43924237" target="_blank" >RIV/60461373:22320/22:43924237 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.jscimedcentral.com/jounal-article-info/Chemical-Engineering-and-Process-Techniques/Model-Based-Analysis-of-Microaeration-for-Biogas-Desulfurization-Using-a-Biomembrane-10914" target="_blank" >https://www.jscimedcentral.com/jounal-article-info/Chemical-Engineering-and-Process-Techniques/Model-Based-Analysis-of-Microaeration-for-Biogas-Desulfurization-Using-a-Biomembrane-10914</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.47739/2333-6633/1069" target="_blank" >10.47739/2333-6633/1069</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Model-Based Analysis of Microaeration for Biogas Desulfurization Using a Biomembrane

Popis výsledku v původním jazyce

Hydrogen sulfide gas is an undesirable product of anaerobic treatment of sulfate-rich wastewater, which must be removed from biogas before burning the latter in acogeneration unit. Microaeration is a biological desulfurization method, which consists in dosing small amount of air into anaerobic digester to support the growth of sulfide oxidizingbacteria (SOB) and the formation of elemental sulfur. The use of a so-called biomembrane, on which SOB grow, has recently been proposed as a promising process option that avoidbiogas dilution with nitrogen from the dosed air as well as possible clogging of pipes by the elemental sulfur formed. In this study, the biomembrane-based microaeration processeswas analysed through mathematical modelling and simulation. A mathematical model describing biogas desulfurization by microaeration through a biomembrane was presentedfor the first time. The model was validated to fit lab-scale experimental data as well as to represent a pilot-scale system. A sensitivity analysis showed that mass transfer coefficientand membrane surface area were the most important parameters in biofilm compartment affecting process kinetics. Additionally, important role of chemical oxidation of hydrogensulfide was confirmed by the simulation results.

Název v anglickém jazyce

Model-Based Analysis of Microaeration for Biogas Desulfurization Using a Biomembrane

Popis výsledku anglicky

Hydrogen sulfide gas is an undesirable product of anaerobic treatment of sulfate-rich wastewater, which must be removed from biogas before burning the latter in acogeneration unit. Microaeration is a biological desulfurization method, which consists in dosing small amount of air into anaerobic digester to support the growth of sulfide oxidizingbacteria (SOB) and the formation of elemental sulfur. The use of a so-called biomembrane, on which SOB grow, has recently been proposed as a promising process option that avoidbiogas dilution with nitrogen from the dosed air as well as possible clogging of pipes by the elemental sulfur formed. In this study, the biomembrane-based microaeration processeswas analysed through mathematical modelling and simulation. A mathematical model describing biogas desulfurization by microaeration through a biomembrane was presentedfor the first time. The model was validated to fit lab-scale experimental data as well as to represent a pilot-scale system. A sensitivity analysis showed that mass transfer coefficientand membrane surface area were the most important parameters in biofilm compartment affecting process kinetics. Additionally, important role of chemical oxidation of hydrogensulfide was confirmed by the simulation results.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

20801 - Environmental biotechnology

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemical Engineering and Process Techniques

ISSN

2333-6633

e-ISSN

2333-6633

Svazek periodika

neuveden

Číslo periodika v rámci svazku

September 2022

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

1069

Kód UT WoS článku

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EID výsledku v databázi Scopus

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