title: Practical remediation of the PCB-contaminated soils.
abstract: A practical method for the elimination of PCBs from PCB-contaminated soil has been developed by the combination of Soxhlet extraction using a newly-developed modified Soxhlet extractor possessing an outlet valve on the extraction chamber with the chemical degradation. Various types of PCBs contaminated in soils could be completely extracted in refluxing hexane, and the subsequent hydrodechlorination could also be completed within 1 h in a hexane-MeOH (1 : 5) solution in the presence of Pd/C and Et3N under ordinary hydrogen pressure and temperature without the transfer of the extracted PCBs to other reaction container (a complete one-pot procedure). The present system is quite useful as a simple, safe, mild and reliable remediation method of PCB-contaminated soil.
authors.affiliation: Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196 Japan.
authors.forename: Akiko
authors.initials: A
authors.lastname: Ido
authors.affiliation: Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196 Japan ; Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196 Japan.
authors.forename: Miki
authors.initials: M
authors.lastname: Niikawa
authors.affiliation: Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196 Japan.
authors.forename: Shinji
authors.initials: S
authors.lastname: Ishihara
authors.affiliation: Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196 Japan.
authors.forename: Yoshinari
authors.initials: Y
authors.lastname: Sawama
authors.affiliation: Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196 Japan.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Nakanishi
authors.affiliation: Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196 Japan.
authors.forename: Yasunari
authors.initials: Y
authors.lastname: Monguchi
authors.affiliation: Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196 Japan.
authors.forename: Hironao
authors.initials: H
authors.lastname: Sajiki
authors.affiliation: Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196 Japan.
authors.forename: Hisamitsu
authors.initials: H
authors.lastname: Nagase
keywords: Hydrodechlorination; PCB-contaminated soil; Palladium on activated carbon (Pd/C); Remediation; Soxhlet extraction