• Scale up of PCB transformer oil dehalogenation process to industrial scope
• Dehalogenation of pure PCB oils and use of degradation products
• Conversion of hexachlorocyclohexane
• Detoxification of DDT and dieldrin contaminated soils
• Detoxification of harbour sediments contaminated by polyhalogenated compounds
• Dehalogenation of dioxins, PCBs and related toxic compounds in contaminated slags and ashes stemming from garbage incineration plants
• Special decontamination treatment of waste stemming from electronic devices (e.g. PCB contaminated capacitors)

TRIBOCHEM has performed a preliminary evaluation and is currently conducting a pilot project with co-operation partners for cleaning up a site heavily contaminated by PCBs. Two major different and difficult problems have to be solved:
Thousands of tons of dismantled, PCB contaminated coils and capacitors had been buried in the ground for about 30 years. In the recent past, the devices were entirely excavated, now being stored in drums and housed, waiting for a reasonable and safe treatment. Unfortunately, the formerly encapsulating soil has been found to be contaminated by PCBs as well.
After having performed preliminary work and test runs which clearly showed that a specifically designed decontamination train plus recycling of valuable materials can cope with the entire problem, combined measures have been developed which are technically and economically feasible and will be implemented including DMCR key steps for the detoxification of the different materials contaminated by PCBs.

1. Appropriate dismantling of PCB contaminatedcoils/condensers
2. Separation into steel/iron, copper, resin, paper etcetera
3. Recycling of valuable steel/iron and copper
4. Removing PCB
5. Mechanochemical Dehalogenation of PCBs and PCBcontaminated materials (DMCR)

1. Preconditioning of PCB contaminated soil (crushing,sieving, drying et cetera)
2. Mechanochemical Dehalogenation step directly in a ballmill (DMCR)
3. Recovery of reagents
4. Disposal/re-use of PCB-free soil