Successful aerobic bioremediation of groundwater contaminated with higher chlorinated phenols by indigenous degrader bacteria

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http://hdl.handle.net/10138/313245

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Mikkonen , A , Yläranta , K , Tiirola , M , Dutra , L A L , Salmi , P , Romantschuk , M , Copley , S , Ikäheimo , J & Sinkkonen , A 2018 , ' Successful aerobic bioremediation of groundwater contaminated with higher chlorinated phenols by indigenous degrader bacteria ' , Water Research , vol. 138 , pp. 118-128 . https://doi.org/10.1016/j.watres.2018.03.033

Title: Successful aerobic bioremediation of groundwater contaminated with higher chlorinated phenols by indigenous degrader bacteria
Author: Mikkonen, Anu; Yläranta, Kati; Tiirola, Marja; Dutra, Lara Ambrosio Leal; Salmi, Pauliina; Romantschuk, Martin; Copley, Shelley; Ikäheimo, Jukka; Sinkkonen, Aki
Contributor: University of Helsinki, Environmental Sciences
University of Helsinki, Environmental Sciences
University of Helsinki, University of Jyväskylä
University of Helsinki, Helsinki Institute of Sustainability Science (HELSUS)
University of Helsinki, Ecosystems and Environment Research Programme
Date: 2018-07-01
Language: eng
Number of pages: 11
Belongs to series: Water Research
ISSN: 0043-1354
URI: http://hdl.handle.net/10138/313245
Abstract: The xenobiotic priority pollutant pentachlorophenol has been used as a timber preservative in a polychlorophenol bulk synthesis product containing also tetrachlorophenol and trichlorophenol. Highly soluble chlorophenol salts have leaked into groundwater, causing severe contamination of large aquifers. Natural attenuation of higher-chlorinated phenols (HCPs: pentachlorophenol + tetrachlorophenol) at historically polluted sites has been inefficient, but a 4-year full scale in situ biostimulation of a chlorophenol-contaminated aquifer by circulation and re-infiltration of aerated groundwater was remarkably successful: pentachlorophenol decreased from 400 μg L−1 to
Subject: 1172 Environmental sciences
bioremediation
gene
Pentachlorophenol hydroxylase
Quantitative PCR
Ion PGM amplicon sequencing
pcpB gene
SOILS
SPHINGOMONADS
BOREAL GROUNDWATER
PENTACHLOROPHENOL
Sphingomonas sensu lato
In situ bioremediation
MICROBIAL-DEGRADATION
2,4,6-TRICHLOROPHENOL DEGRADATION
EVOLUTION
PCPB GENE
SPHINGOBIUM-CHLOROPHENOLICUM
DIVERSITY
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