2 ОРГАНИЗАЦИЯ И МЕТОДИКА РАБОТ - Courrier international

esidual content of less than 50 ppm PCB are sent for recycling as secondary raw materials, and
nonmetallic materials are subject to thermal disposal.
11.3.3.3 Solvent regeneration stage
Technological scheme of solvent recovery is shown in Figure 11.3.3 Regeneration of the solvent - a
selection of pure methylene chloride from its mixture with the remnants of PCB is carried out
periodically. To do this, PCB pollution of methylene chloride from the cube-evaporator E1 install
cleaning of the transformer is pumped into the vessel through the side E8 fitting. Evaporation of
methylene chloride is produced by heating the hot water tank through a shirt E8. As the spray droplet
separator liquid with vigorous boiling is a layer of nozzles at the top of the tank.
Pair of methylene chloride from tank E8 coming into the condenser T5 cooled brine. Condensed
methylene chloride is discharged into the tank E9 cooled brine. Pickle served in a tank shirt E9, and from
it comes in a condenser T5.
Regenerated solvent - methylene chloride - back to the installation of the transformer cleaning for reuse.
Pair of methylene chloride from tank E9 trapped in absorber K3 with activated charcoal. The service
activated carbon is determined by its sorption capacity.
Completion of the distillation of methylene chloride from a mixture of PCB determined in the following
two criteria:
termination of reducing capacity in the E8;
increase in temperature of the liquid in the tank E8.
The exact content of residual dichloromethane in the bottoms liquid is determined by chromatographic
analysis and is equal to 3 1 %.
FINAL REPORT for Contract No. CS-NPA-Arctic-13/2009 of December 01, 2009 within the framework of pilot project Development of
Technology of clean up of the area of Decommissioned Sites of The Russian Federation Ministry of Defense in the Arctic by the Example of
Alexanra Island of Franz Josef Land Archipelago from Hazardous Waste
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