Author/Authors :
Ido، Akiko نويسنده 1Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan , , Niikawa، Miki نويسنده 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 , , Ishihara، Shinji نويسنده , , Sawama، Yoshinari نويسنده Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan , , Nakanishi، Tsuyoshi نويسنده , , Monguchi، Yasunari نويسنده Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan , , Sajiki، Hironao نويسنده , , Nagase، Hisamitsu نويسنده 1Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan ,
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.
