In situ bioremediation of Fenton's reaction-treated oil spill site, with a soil inoculum, slow release additives, and methyl-beta-cyclodextrin

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Talvenmaki , H , Saartama , N , Haukka , A , Lepikko , K , Pajunen , V , Punkari , M , Yan , G , Sinkkonen , A , Piepponen , T , Silvennoinen , H & Romantschuk , M 2021 , ' In situ bioremediation of Fenton's reaction-treated oil spill site, with a soil inoculum, slow release additives, and methyl-beta-cyclodextrin ' , Environmental Science and Pollution Research , vol. 28 , pp. 20273-20289 . https://doi.org/10.1007/s11356-020-11910-w

Title: In situ bioremediation of Fenton's reaction-treated oil spill site, with a soil inoculum, slow release additives, and methyl-beta-cyclodextrin
Author: Talvenmaki, Harri; Saartama, Niina; Haukka, Anna; Lepikko, Katri; Pajunen, Virpi; Punkari, Milla; Yan, Guoyong; Sinkkonen, Aki; Piepponen, Tuomas; Silvennoinen, Hannu; Romantschuk, Martin
Other contributor: University of Helsinki, Ecosystems and Environment Research Programme
University of Helsinki, Ecosystems and Environment Research Programme
University of Helsinki, Faculty of Biological and Environmental Sciences
University of Helsinki, Faculty of Biological and Environmental Sciences
University of Helsinki, Department of Geosciences and Geography
University of Helsinki, Ecosystems and Environment Research Programme
University of Helsinki, Ecosystems and Environment Research Programme







Date: 2021-04
Language: eng
Number of pages: 17
Belongs to series: Environmental Science and Pollution Research
ISSN: 0944-1344
DOI: https://doi.org/10.1007/s11356-020-11910-w
URI: http://hdl.handle.net/10138/332259
Abstract: A residential lot impacted by spills from a leaking light heating oil tank was treated with a combination of chemical oxidation and bioremediation to avoid technically challenging excavation. The tank left emptied in the ground was used for slow infiltration of the remediation additives to the low permeability, clayey soil. First, hydrogen peroxide and citrate chelate was added for Fenton's reaction-based chemical oxidation, resulting in a ca. 50% reduction from the initial 25,000 mg/kg average oil concentration in the soil below the tank. Part of this was likely achieved through mobilization of oily soil into the tank, which was beneficial in regards to the following biological treatment. By first adding live bacteria in a soil inoculum, and then oxygen and nutrients in different forms, an approximately 90% average reduction was achieved. To further enhance the effect, methyl-beta-cyclodextrin surfactant (CD) was added, resulting finally in a 98% reduction from the initial average level. The applicability of the surfactant was based on laboratory-scale tests demonstrating that CD promoted oil degradation and, unlike pine soap, was not utilized by the bacteria as a carbon source, and thus inhibiting degradation of oils regardless of the positive effect on biological activity. The effect of CD on water solubility for different hydrocarbon fractions was tested to serve as the basis for risk assessment requirements for authorizing the use of the surfactant at the site.
Subject: In situ
Bioaugmentation
Surfactant
Methyl-beta-cyclodextrin
Bioremediation
DIESEL FUEL
DEGRADATION
REMEDIATION
OXIDATION
BIOAUGMENTATION
BIODEGRADATION
BIOSTIMULATION
BACTERIA
FE(III)
ABILITY
1172 Environmental sciences
1181 Ecology, evolutionary biology
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