A COMBINED METHOD FOR COMPLETE DEGRADATION OF PCBS: COMBINATION OF ULTRAVIOLET AND BIOLOGICAL TREATMENTS

Some chlorinated substrates are dechlorinated photochemically by ultraviolet (UV) irradiation. To evaluate the dechlorination ability of UV light for polychlorinated biphenyls, methanol solutions of Kaneclor 500, which mainly consists of penta-chlorinated biphenyls, were put into a screw-capped quartz glass cell and irradiated at room temperature for 26 hours. Most of the congeners were transformed into low chlorinated congeners that had less than three chlorine. Congeners that remained after UV irradiation did not have any chlorine at ortho position. Further irradiation was not useful for dechlorination and UV irradiation was replaced with biological treatment.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3127232
• Corporate Authors:

  Railway Technical Research Institute

  2-8-38, Hikari-cho, Kokubunji-shi
  Tokyo 185,   Japan 
• Authors:
  • Shimura, M
  • Dhar, M
  • Kimbara, K
• Publication Date: 1996-3

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 32-36
• Serial:
  • Railway Technical Research Institute, Quarterly Reports
  • Volume: 37
  • Issue Number: 1
  • Publisher: Railway Technical Research Institute/Tetsudo Gijutsu Kenkyujo
  • ISSN: 0033-9008
  • Serial URL: http://www.rtri.or.jp/eng/

Subject/Index Terms

• TRT Terms: Biodeterioration; Chemical agents; Chlorination; Ultraviolet radiation
• Uncontrolled Terms: Degradation
• Subject Areas: Materials; Railroads;

Filing Info

• Accession Number: 00728668
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 12 1996 12:00AM