Hydrocarbon Removal by Two Differently Developed Microbial Inoculants and Comparing Their Actions with Biostimulation Treatment.
biostimulation/bioaugmentation
defined mixed culture
polycyclic aromatic hydrocarbons (PAHs)
total aliphatic hydrocarbons (TAHs)
toxicity tests
undefined community
Journal
Molecules (Basel, Switzerland)
ISSN: 1420-3049
Titre abrégé: Molecules
Pays: Switzerland
ID NLM: 100964009
Informations de publication
Date de publication:
04 Feb 2020
04 Feb 2020
Historique:
received:
20
12
2019
revised:
30
01
2020
accepted:
01
02
2020
entrez:
9
2
2020
pubmed:
9
2
2020
medline:
18
11
2020
Statut:
epublish
Résumé
Bioremediation of soils polluted with petroleum compounds is a widely accepted environmental technology. We compared the effects of biostimulation and bioaugmentation of soil historically contaminated with aliphatic and polycyclic aromatic hydrocarbons. The studied bioaugmentation treatments comprised of the introduction of differently developed microbial inoculants, namely: an isolated hydrocarbon-degrading community C1 (undefined-consisting of randomly chosen degraders) and a mixed culture C2 (consisting of seven strains with well-characterized enhanced hydrocarbon-degrading capabilities). Sixty days of remedial treatments resulted in a substantial decrease in total aliphatic hydrocarbon content; however, the action of both inoculants gave a significantly better effect than nutrient amendments (a 69.7% decrease for C1 and 86.8% for C2 vs. 34.9% for biostimulation). The bioaugmentation resulted also in PAH removal, and, again, C2 degraded contaminants more efficiently than C1 (reductions of 85.2% and 64.5%, respectively), while biostimulation itself gave no significant results. Various bioassays applying different organisms (the bacterium
Identifiants
pubmed: 32033085
pii: molecules25030661
doi: 10.3390/molecules25030661
pmc: PMC7036810
pii:
doi:
Substances chimiques
Petroleum
0
Polycyclic Aromatic Hydrocarbons
0
Soil
0
Soil Pollutants
0
Types de publication
Comparative Study
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : Polish Ministry of Science and Higher Education
ID : Statutory Funding for Oil nad Gas Institute - National Research Institute
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
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