LAPSE:2023.2764
Published Article
LAPSE:2023.2764
Efficiency of Penicillium canescens in Dissipating PAH in Industrial Aged Contaminated Soil Microcosms and Its Impact on Soil Organic Matter and Ecotoxicity
February 21, 2023
The filamentous fungus Penicillium canescens, isolated from oil-polluted soil, was evaluated for its ability to dissipate high-molecular-weight polycyclic aromatic hydrocarbons (PAH). The study was conducted in a microcosm containing 180 g of historical PAH-contaminated soil under non-sterile conditions with two incubation temperatures (14 °C and 18 °C) on a 12-h cycle. The experiment was conducted over 8 months, with four experimental conditions created by varying the volumes of the bulking agent and vegetable oil (olive oil) and the time of addition of these compounds. The PAH dissipation performance of the fungal augmentation treatment was compared with that achieved with a biostimulated soil (bulking agent and vegetable oil) and with the untreated soil as control. The greatest PAH dissipation was obtained with P. canescens bioaugmentation (35.71% ± 1.73), with 13 of the 16 US EPA PAH significantly dissipated, at rates above 18%, and particularly high-molecular-weight PAH, composed of more than three fused aromatic rings. Nematode toxicity tests indicated a significant decrease in the toxicity of soil bioaugmented by this fungus. Fulvic and humic contents were significantly increased by this treatment. All these results suggest that bioaugmentation with P. canescens can be used to restore soils with long-term PAH contamination.
Record ID
Keywords
aged-polluted soil, fungal bioaugmentation, high molecular weight polycyclic aromatic hydrocarbons, mycoremediation, PAH bioavailability
Subject
Suggested Citation
Veignie E, Rafin C. Efficiency of Penicillium canescens in Dissipating PAH in Industrial Aged Contaminated Soil Microcosms and Its Impact on Soil Organic Matter and Ecotoxicity. (2023). LAPSE:2023.2764
Author Affiliations
Journal Name
Processes
Volume
10
Issue
3
First Page
532
Year
2022
Publication Date
2022-03-07
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr10030532, Publication Type: Journal Article
Record Map
Published Article
LAPSE:2023.2764
This Record
External Link
doi:10.3390/pr10030532
Publisher Version
Download
Meta
Record Statistics
Record Views
54
Version History
[v1] (Original Submission)
Feb 21, 2023
Verified by curator on
Feb 21, 2023
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2023.2764
Original Submitter
Auto Uploader for LAPSE
Links to Related Works