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ANAEROBIC BIOREMEDIATION OF PAH-CONTAMINATED SOIL: ASSESSMENT OF THE DEGRADATION OF CONTAMINANTS AND BIOGAS PRODUCTION UNDER THERMOPHILIC AND MESOPHILIC CONDITIONS
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SYSNO ASEP 0455885 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title ANAEROBIC BIOREMEDIATION OF PAH-CONTAMINATED SOIL: ASSESSMENT OF THE DEGRADATION OF CONTAMINANTS AND BIOGAS PRODUCTION UNDER THERMOPHILIC AND MESOPHILIC CONDITIONS Author(s) Sayara, T. (IL)
Čvančarová, Monika (MBU-M) RID
Cajthaml, Tomáš (MBU-M) RID, ORCID
Sarra, M. (ES)
Sánchez, A. (ES)Source Title Environmental Engineering and Management Journal - ISSN 1582-9596
Roč. 14, č. 1 (2015), s. 153-165Number of pages 13 s. Language eng - English Country RO - Romania Keywords anaerobic digestion ; central composite design ; PAH-contaminated soil Subject RIV EE - Microbiology, Virology R&D Projects GA525/09/1058 GA ČR - Czech Science Foundation (CSF) Institutional support MBU-M - RVO:61388971 UT WOS 000351589400017 Annotation The degradation of polycyclic aromatic hydrocarbons (PAHs) including fluorene, phenanthrene, anthracene, fluoranthene and pyrene were investigated under thermophilic and mesophilic anaerobic-methanogenic conditions. By using central composite design, the impact of PAH concentration and soil to inocula ratio were systematically studied for their influence on PAH removal and biogas production. During the first 30 days, PAH concentration decreased in all samples indicating that the inocula used were able to biodegrade the contaminants; although an inhibition effect was initially observed in biogas production. Phospholipids fatty acids analysis was used to monitor the microbial communities present during the process. These communities were more complex in samples containing moderate to high PAH contamination concentrations. After 50 days, the concentration of PAHs increased in the majority of samples indicating possible reversed biotransformation of these compounds. Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2016
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