Division 4.8.1 Overall environmental performance

This includes techniques such as:

• resin coating applied to the concrete floor of the whole storage and treatment area.

This includes techniques such as:

• access points to storage and treatment areas are locked;

• special qualification is required to access the area where the contaminated equipment is stored and handled;

• separate ‘clean’ and ‘dirty’ cloakrooms to put on/remove individual protective outfit.

This includes techniques such as:

• external surfaces of the contaminated equipment are cleaned with anionic detergent;

• emptying of the equipment with a pump or under vacuum instead of gravity emptying;

• procedures are defined and used for filling, emptying and (dis)connecting the vacuum vessel;

• a long period of drainage (at least 12 hours) is ensured to avoid any dripping of contaminated liquid during further treatment operations, after the separation of the core from the casing of an electrical transformer.

This includes techniques such as:

• the air of the decontamination area is collected and treated with activated carbon filters;

• the exhaust of the vacuum pump mentioned in technique c. above is connected to an end-of-pipe abatement system (e.g. a high-temperature incinerator, thermal oxidation or adsorption on activated carbon);

• the channelled emissions are monitored (see BAT 8);

• the potential atmospheric deposition of PCBs is monitored (e.g. through physico-chemical measurements or biomonitoring).

This includes techniques such as:

• porous, contaminated parts of the electrical transformer (wood and paper) are sent to high-temperature incineration;

• PCBs in the oils are destroyed (e.g. dechlorination, hydrogenation, solvated electron processes, high-temperature incineration).