2 ОРГАНИЗАЦИЯ И МЕТОДИКА РАБОТ - Courrier international

With regard to the technology of mass disposal of drums containing the remains of particularly
dangerous substances, waste recovery module and the neutralization of the drums (MIN) consists
of the following main parts:
airtight ventilated work chamber in which the operations are done of opening drums, mixing,
extracting liquid wastes and deactivating drums interiors;
reinforcement group, which is a separate stand, where stop-control valves and instrumentation
are mounted that enable manufacturing operations with the drum in the chamber;
Automated control system for MIN, which includes a control cabinet with integrated
programmable electronic system and local control panel with built-in monitor.
In the chamber there are 3 windows for visual observation by the attendants.
Sent to MIN for processing the drum of waste is overloaded electric by crane PT20 with a
special gripper mounted on a trolley in a container of the working chamber. The operator then
manually fixes a drum, closes the chamber and turns on the air cleaning system.
The operator starts the process of opening (drilling) a drum.
vertical feed drill installation is switchedon, the drill is automatically fed to drum and drills it,
plunging into the inner space by 30-35 mm.
Then drill and drill unit comes back to the starting position and the drilling installation is
switched off.
Drilling chips are collected by electromagnetic chips trap and after the return of the drill in its
original position chips are placed in chip collector.
End of drilling is shown on the monitor and the operator can start moving truck to the position of
waste extraction.
After lifting the drilling installation truck with the drum in the container is moved to the position
of waste recovery and decontamination of drum.
At the position of waste recovery and neutralization of the drum an evacuator drive of vertical
displacements is on, lowering it all the way to the surface of the drum. At the same time siphon
tube of evacuation head falls into a drum through the drill hole.
When ready to recover waste operator presses the button to transmit a signal to start operation. In
this case, the valve is opened at the receiving capacity of liquid wastes, which created suction
(vacuum). Before the transfer of waste reception capacity is pre-filled by 20-30% of
reagent. Due to vacuum, waste removal is provided from the drum to the receiver
tank. Receiving tank is equipped with exhaust gas clean, and has temperature sensors and
cooling circuit to maintain the required temperature regime in the case of the exothermic
neutralization reaction between the waste and reagent.
At the end of extracting waste fluid flows through the siphon head and the associated pipeline
stops that can be detected visually through the observation lamp or sensor.
After finishing waste extraction operation the process begins of filling drums with neutralizing
agent from the collector. The choice of agent depends on the type of hazardous waste being
destroyed.
When ready to supply the reagent to drum the operator presses the button to transmit signal of
the beginning of the operation.
The reagent is discharged into drum through the evacuation head siphon, the end gases from the
drum interior are cleaned in the air clean system of the working chamber.
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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