Tritium containing wastewater treatment system and processing method

The present invention relates to a wastewater treatment system and tritium-containing processing method, a multi-stage system for the water distillation column and then cascaded with a single stage cascade N-VPCE, with multi-stage cascade system to pre-water fractionator tritiated waste water, which is a plurality of rectifying components higher low tritium and tritium component increasing concentrations of tritium; high tritium tritium increasing concentrations of a plurality of components in the concentration of tritium in the order from small to large, in order to N-VPCE form vapor phase catalytic column temperature steam is introduced from the lower to the exchange, the exchange of the hydrogen is introduced from the bottom of column N-VPCE catalytic vapor phase, through a catalytic exchange of tritium in the water vapor transfer to hydrogen gas phase effluent N -VPCE vapor phase catalytic exchange column and then fed back to the water on a rectification column. Tritium-containing water of the present invention a simple system structure, reasonable flow, low construction and operating costs of the system; only practical approach, stable and reliable operation, it is possible to solve environmental tritium emissions control inland nuclear power technical problems, are also suitable for the lean deuterated water production.