Field Study IX: Pilot-Scale Composting of PAH-Contaminated Materials: Two Different Approaches

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F20%3A00524700" target="_blank" >RIV/61388971:_____/20:00524700 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/20:10406261

Výsledek na webu

<a href="http://dx.doi.org/10.1007/978-3-030-29840-1_25" target="_blank" >http://dx.doi.org/10.1007/978-3-030-29840-1_25</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-030-29840-1_25" target="_blank" >10.1007/978-3-030-29840-1_25</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Field Study IX: Pilot-Scale Composting of PAH-Contaminated Materials: Two Different Approaches

Popis výsledku v původním jazyce

Results of this field study describe composting of two different PAH-contaminated materials (soils originated from four industrial sites and creosote-treated railway crossties). Sequential mild supercritical fluid extraction (SFE) was employed to estimate the fast-release fractions (F) of PAHs in order to predict bioaccessible portion of PAHs in the materials. These values were consequently compared with the real biodegradation data obtained from the two pilotscale experiments in order to investigate whether the bioaccessible data can be used as a prediction parameter of the degradation efficiency. The final results of the PAH elimination ranged between 62.4% and 92.9% in the case of the soil samples and between 81.4% and 97.0% for two different treatments of contaminated railway crossties. The results showed that the elimination efficiency decreased with the increasing number of aromatic rings in the PAH molecules. Estimation of the bioaccessible fraction of PAHs using the SFE method has been proven to be a useful tool for prediction of the bioremediation process efficiency. This fact is particularly important because if the composting method is employed in the full scale, any addition of the necessary bulking agent leads to the final increase in the total amount of the treated hazardous wastes if the remediation process fails.nn

Název v anglickém jazyce

Field Study IX: Pilot-Scale Composting of PAH-Contaminated Materials: Two Different Approaches

Popis výsledku anglicky

Results of this field study describe composting of two different PAH-contaminated materials (soils originated from four industrial sites and creosote-treated railway crossties). Sequential mild supercritical fluid extraction (SFE) was employed to estimate the fast-release fractions (F) of PAHs in order to predict bioaccessible portion of PAHs in the materials. These values were consequently compared with the real biodegradation data obtained from the two pilotscale experiments in order to investigate whether the bioaccessible data can be used as a prediction parameter of the degradation efficiency. The final results of the PAH elimination ranged between 62.4% and 92.9% in the case of the soil samples and between 81.4% and 97.0% for two different treatments of contaminated railway crossties. The results showed that the elimination efficiency decreased with the increasing number of aromatic rings in the PAH molecules. Estimation of the bioaccessible fraction of PAHs using the SFE method has been proven to be a useful tool for prediction of the bioremediation process efficiency. This fact is particularly important because if the composting method is employed in the full scale, any addition of the necessary bulking agent leads to the final increase in the total amount of the treated hazardous wastes if the remediation process fails.nn

Druh

C - Kapitola v odborné knize

CEP obor

—

OECD FORD obor

20801 - Environmental biotechnology

Projekt

<a href="/cs/project/TE01020218" target="_blank" >TE01020218: Ekologicky šetrné nanotechnologie a biotechnologie pro čištění vod a půd</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Advanced Nano-Bio Technologies for Water and Soil Treatment

ISBN

978-3-030-29839-5

Počet stran výsledku

8

Strana od-do

527-534

Počet stran knihy

657

Název nakladatele

Springer Nature Switzerland AG

Místo vydání

Cham

Kód UT WoS kapitoly

000674459400027