Development of the system for tritium removal from the air of working premises

The paper presents the expediency of developing the system for tritium remo val from large air volumes in working rooms. The system is intended both to prevent ejection of air contaminated by tritium in the atmosphere in emerg ency tritium release from processing equipment of the experimental closed l oop modelling the ITER vacuum-fuel system, and to purify air to sanitary st andards. Schematic layout and a design of the system elements are presented . Operation principle consists in timely detection of tritium leakage by co ntrol pickups, in locking and switching off the ventilation, as well as in air purification using gas purifying facility (AGPF). In the AGPF gaseous t ritium oxidizes on alumopalladium catalyst to oxide, and produced ultraheav y water is absorbed by zeolites. The facility is composed of air heater, co nverter (column with catalyst), water cooler, two parallel adsorbers (colum ns with zeolite) and gas blower.