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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