Anaerobic digestion: A promising technology of utilizing radioactively contaminated plant biomass
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652052%3A_____%2F23%3AN0000030" target="_blank" >RIV/86652052:_____/23:N0000030 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.sciencedirect.com/science/article/abs/pii/S0265931X23001388" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0265931X23001388</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jenvrad.2023.107245" target="_blank" >10.1016/j.jenvrad.2023.107245</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Anaerobic digestion: A promising technology of utilizing radioactively contaminated plant biomass
Popis výsledku v původním jazyce
Anaerobic digestion (AD) is a widely used technology that allows for the reprocessing and reduction of waste biomass. A study was conducted to see if the AD technology might be used to process radioactively polluted agricultural biomass. For this purpose, laboratory tests were carried out with a 20-liter model biogas plant (BGP) with the radionuclide 134Cs and operational tests with the South Bohemian commercial biogas plant monitoring the radionuclide 137Cs. The activities of 134Cs in inputs, contaminated grass or maize silage and in emerging fractions were investigated in the model fermenter. The activity of 134Cs in the dry matter during the fermentation process increased by 46% on average, which corresponds to a reduction of dry matter by 43% due to the production of biogas. 137Cs activities were measured in commercial BGP maize, grass, and whole plant silage, wheat, digestate, biogas, and aerosol samples. The commercial BGP fermentation process was more efficient, with an 80% reduction in dry mass weight. Dry biomass (1.37 Bq/kg) had a 137Cs massic activity that was 4.4times lower than the activity of dry digestate mass (6.01 Bq/kg). The activity of the 137Cs in biogas aerosol was 1.1E-7 Bq/m3 or less, and the decontamination factor was 6.9E6 or greater. Most Cs remain in the digestate. No other ways of radioactivity leakage have been identified.
Název v anglickém jazyce
Anaerobic digestion: A promising technology of utilizing radioactively contaminated plant biomass
Popis výsledku anglicky
Anaerobic digestion (AD) is a widely used technology that allows for the reprocessing and reduction of waste biomass. A study was conducted to see if the AD technology might be used to process radioactively polluted agricultural biomass. For this purpose, laboratory tests were carried out with a 20-liter model biogas plant (BGP) with the radionuclide 134Cs and operational tests with the South Bohemian commercial biogas plant monitoring the radionuclide 137Cs. The activities of 134Cs in inputs, contaminated grass or maize silage and in emerging fractions were investigated in the model fermenter. The activity of 134Cs in the dry matter during the fermentation process increased by 46% on average, which corresponds to a reduction of dry matter by 43% due to the production of biogas. 137Cs activities were measured in commercial BGP maize, grass, and whole plant silage, wheat, digestate, biogas, and aerosol samples. The commercial BGP fermentation process was more efficient, with an 80% reduction in dry mass weight. Dry biomass (1.37 Bq/kg) had a 137Cs massic activity that was 4.4times lower than the activity of dry digestate mass (6.01 Bq/kg). The activity of the 137Cs in biogas aerosol was 1.1E-7 Bq/m3 or less, and the decontamination factor was 6.9E6 or greater. Most Cs remain in the digestate. No other ways of radioactivity leakage have been identified.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10511 - Environmental sciences (social aspects to be 5.7)
Návaznosti výsledku
Projekt
<a href="/cs/project/VI20172020098" target="_blank" >VI20172020098: Likvidace radiačně kontaminované biomasy po havárii JE-distribuce v krajině, logistika sklizně, využití bioplynovou technologií.</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2023
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Environmental Radioactivity
ISSN
0265-931X
e-ISSN
1879-1700
Svazek periodika
268-269
Číslo periodika v rámci svazku
November
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
8
Strana od-do
107245
Kód UT WoS článku
001049533100001
EID výsledku v databázi Scopus
2-s2.0-85166197257