Role of Biochar and Fungi on PAH Sorption to Soil Rich in Organic Matter

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http://hdl.handle.net/10138/307851

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Anasonye , F , Tammeorg , P , Parshintsev , E , Riekkola , M-L & Tuomela , M T 2018 , ' Role of Biochar and Fungi on PAH Sorption to Soil Rich in Organic Matter ' , Water, Air and Soil Pollution , vol. 229 , no. 2 , 49 . https://doi.org/10.1007/s11270-018-3708-2

Title: Role of Biochar and Fungi on PAH Sorption to Soil Rich in Organic Matter
Author: Anasonye, Festus; Tammeorg, Priit; Parshintsev, Evgeny; Riekkola, Marja-Liisa; Tuomela, Marja Tuulikki
Contributor organization: Department of Agricultural Sciences
AgriChar research group
Department of Chemistry
Laboratory of Analytical Chemistry
Helsinki Institute of Sustainability Science (HELSUS)
Plant Production Sciences
Viikki Plant Science Centre (ViPS)
Date: 2018-02-01
Language: eng
Number of pages: 14
Belongs to series: Water, Air and Soil Pollution
ISSN: 0049-6979
DOI: https://doi.org/10.1007/s11270-018-3708-2
URI: http://hdl.handle.net/10138/307851
Abstract: The use of biochar (BC) has been suggested for remediation of contaminated soils. This study aims to investigate the role of microorganisms in sorption of PAH to BC-amended soils. Fungi, especially the wood and litter-degrading fungi, have shown the ability for humification and to degrade recalcitrant molecules, and are thus suitable model organisms. Haplic Arenosol with high organic matter content was chosen to highlight the importance of soil organic matter (SOM) in PAH sorption, possibly to form non-extractable residue. Basidiomycetous fungi Agrocybe praecox and Phanerochaete velutina grown on pine bark were inoculated in organic matter (OM)-rich Haplic Arenosol and OM-poor sandy loam with either BC or chemically activated BC (ABC) and 14C-labelled pyrene for 60 days. Fungi did not mineralize pyrene, but increased sorption up to 47–56% in BC-amended Haplic Arenosol in comparison with controls (13–25%) without a fungus irrespective of the presence of an adsorbent. In OM-poor sandy loam, only 9–12% of pyrene was sorbed to amended soil in the presence of fungus and adsorbent. The results suggest that BC and fungal amendment increased sorption of pyrene, especially to Haplic Arenosol more than by either BC or fungi alone.
Subject: 415 Other agricultural sciences
Biochar
PAH
SOIL
FUNGI
Activated biochar
Amendment
Haplic Arenosol
Organic matter
Pyrene
Sorption
POLYCYCLIC AROMATIC-HYDROCARBONS
BACTERIAL COMMUNITY COMPOSITION
BOREAL LOAMY SAND
WHITE-ROT FUNGUS
MICROBIAL COMMUNITY
CONTAMINATED SOIL
ACTIVATED CARBON
BLACK CARBON
PHYSICOCHEMICAL PROPERTIES
AGRICULTURAL SOIL
Peer reviewed: Yes
Usage restriction: openAccess
Self-archived version: acceptedVersion


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