Osaka PCB Waste Treatment Facility

Osaka Facility is the fourth regional PCB waste treatment facility in Japan, thanks to the acceptance of the facility by Osaka City. JESCO started construction in January 2005, and after a test run conducted from March to August 2006, full operations started on October 3, 2006.

Outline of Facility

^ Click above to enlarge
  • Location:
    (West wing)2-4-13 Hokkou-Shiratsu Konohana-ku, Osaka 554-0041
    (East Wing)2-3-35 Hokkou-Shiratsu Konohana-ku, Osaka 554-0041
  • Accepted Wastes
  • Type of waste Wastes stored at Wastes accepted outside assigned region
    Transformers and capacitors B Region Some train-mounted transformers and special capacitors stored in E Region
    Ballasts and others B Region (Only some small electrical equipment) none
    Note) Each Region consist of the following prefectures
    B Region:Shiga, Kyoto, Osaka, Hyogo, Nara and Wakayama Prefecture
    C Region:Gifu, Shizuoka, Aichi and Mie Prefecture
    E Region:Hokkaido, Aomori, Iwate, Miyagi, Akita, Yamagata, Fukushima, Ibaraki, Tochigi, Gunma, Niigata, Toyama, Ishikawa, Fukui, Yamanashi and Nagano Prefecture
  • PCB treatment capacity: 2t/day (PCB decomposition volume)
  • Treatment Method:
    • Pre-treatment of containers and components: Solvent Cleansing Method and Vacuum Heating Separationt Method
      PCB decomposition: Dechlorination Method
  • Overview of West Wing
    5-story steel framed building, Height: 30 m, Total floor area: 17,600 m2

  • Overview of East Wing
    5-story steel framed building, Height: 27 m, Total floor area: 7,650 m2

  • Treatment Flow

    Osaka Waste Treatment Facility is divided into the West Wing and the East Wing.
    In the West Wing, PCB is extracted from transformers and capacitors and the containers are disassembled into the shape and size suitable for treatment. The methods used to collect PCB from the containers are the "Solvent Cleansing Method" and the "Vacuum Heating Separation Method".
    In the East Wing, the collected PCB is chemically decomposed using the "Catalyst Hydrogenation Dechlorination Method".
    Treatment Flow Diagram
    ^ Click above chart to enlarge

    Safety Measures of Osaka Facility

    Monitoring Operations are monitored 24 hours a day by computers from the Central Monitoring Room.
    Measures for Exhaust Exhaust from process is cleaned by oil scrubbers in the exhaust treatment equipment, and goes through activated carbon as a safety net before released. Furthermore, the air pressure inside the facilities are kept lower than atmosphere outside, to keep air from flowing outside.
    Measures to Prevent Leakage To prevent PCB from leaving the facilities, oil pans are set under PCB-handling areas and PCB treatment equipment. Floors are coated with epoxy resin which is impermeable, chemical resistant, and wear-resistant. These measures will prevent PCB from penetrating floors in case of a spilling. The oil pans and floors are equipped with detectors to identify leakage.
    Emergency Measures When an earthquake above preset intensity is detected, facilities are shut down automatically. Also, to protect facilities from fire, automatic fire alarms, chemical fire extinguishers and fire hydrants are installed.

    Information Disclosure of Operation Status

    JESCO makes effort to actively disclose information from planning of facilities to operation status.
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