Microaeration through a biomembrane for biogas desulfurization: lab-scale and pilot-scale experiences

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F18%3A43915841" target="_blank" >RIV/60461373:22320/18:43915841 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1039/C8EW00232K" target="_blank" >http://dx.doi.org/10.1039/C8EW00232K</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/C8EW00232K" target="_blank" >10.1039/C8EW00232K</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Microaeration through a biomembrane for biogas desulfurization: lab-scale and pilot-scale experiences

Popis výsledku v původním jazyce

Microaeration, a biological method to remove H2S from biogas by oxidizing it to elemental sulfur, has been shown to be highly efficient, simple and reliable. However, dosing air directly into an anaerobic fermenter results in the dilution of biogas with nitrogen and oxygen and can cause clogging of biogas pipes by elemental sulfur. These disadvantages can be overcome by the use of biomembrane, i.e. a membrane covered with biofilm that separates air and biogas. Experiments with bare, wet and biofilm membrane were conducted with a commercially available PVDF LM-P2 membrane to evaluate chemical and biological oxidation rates of H2S. Different amounts of air were dosed through the biomembrane to determine the optimum air-to-biogas ratio, to evaluate methane losses and to evaluate biogas contamination with nitrogen and oxygen. The H2S content decreased from 3000 ppm to less than 100 ppm within two days. The loss of methane was 3.7% of the total methane production and the specific H2S removal rate was 32 mg m-2 d-1.

Název v anglickém jazyce

Microaeration through a biomembrane for biogas desulfurization: lab-scale and pilot-scale experiences

Popis výsledku anglicky

Microaeration, a biological method to remove H2S from biogas by oxidizing it to elemental sulfur, has been shown to be highly efficient, simple and reliable. However, dosing air directly into an anaerobic fermenter results in the dilution of biogas with nitrogen and oxygen and can cause clogging of biogas pipes by elemental sulfur. These disadvantages can be overcome by the use of biomembrane, i.e. a membrane covered with biofilm that separates air and biogas. Experiments with bare, wet and biofilm membrane were conducted with a commercially available PVDF LM-P2 membrane to evaluate chemical and biological oxidation rates of H2S. Different amounts of air were dosed through the biomembrane to determine the optimum air-to-biogas ratio, to evaluate methane losses and to evaluate biogas contamination with nitrogen and oxygen. The H2S content decreased from 3000 ppm to less than 100 ppm within two days. The loss of methane was 3.7% of the total methane production and the specific H2S removal rate was 32 mg m-2 d-1.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

10609 - Biochemical research methods

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Environmental Science: Water Research &amp; Technology

ISSN

2053-1400

e-ISSN

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Svazek periodika

8

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

1190-1200

Kód UT WoS článku

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EID výsledku v databázi Scopus

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