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RADIOACTIVE WASTE MANAGEMENT PART 2. A RAHMAN RWE NUKEM Ltd (UK). Name, company and chapter. Sources of Radioactive Waste. Operational activities POCO Decontamination Dismantling Land remediation. Management of Radioactive Waste. From generation of waste. To disposal of waste. Hazards.

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RADIOACTIVE WASTE MANAGEMENT PART 2

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Radioactive waste management part 2
RADIOACTIVE WASTE MANAGEMENTPART 2

A RAHMAN

RWE NUKEM Ltd (UK)

Name, company and chapter


Sources of radioactive waste
Sources of Radioactive Waste

  • Operational activities

  • POCO

  • Decontamination

  • Dismantling

  • Land remediation


Management of radioactive waste
Management of Radioactive Waste

From generation of waste

To disposal of waste


Hazards in rwm

Hazards

Disposed

Unmanaged

Managed

Conditioned

Variation of hazards with RWM

Hazards in RWM


Physical states of waste
Physical States of waste

Solids: Contaminated materials, equipment, pipes, cables, concrete, rubbles etc

Liquids: Arising from decontamination work, waste treatment plant, water purification system etc.

Gases: Arising from decontamination processes, dismantling activities etc.


Waste types
Waste types

Primary wastes: contaminated and activated original materials.

Secondary wastes: from processing of primary waste, from decontamination and other associated processes.


Treatment objectives
Treatment objectives

  • Volume reduction

  • Removal of activities

  • Suitable composition


Conditioning objectives
Conditioning objectives

  • Conversion to solid form

  • waste form

  • Suitable for long term storage or disposal


Radioactive waste management part 2

Waste and materials

Pre-treatment

Treatment

Cleared

Material

(general)

Cleared

Material

(specific)

Conditioning

Storage and Disposal


Various types of treatment
Various types of Treatment

  • Solid waste:(i) Compaction

    (ii) Incineration

  • Aqueous effluent:(i) Chemical precipitation

    (ii) Evaporation

    (iii) Ion exchange

  • Gaseous waste:(i) HEPA filters

    (ii) Adsorption or chemisorption

    (iii) Scrubbing

    (iv) Cryogenic retention


Types of treatment for solid waste
Types of Treatment for Solid Waste

  • No compaction, no incineration

  • No compaction, incineration

  • Pre-compaction, no incineration

  • Pre-compaction, incineration


Burnable waste compactor low force compactor
Burnable Waste Compactor(Low force Compactor)


In drum compactor low force compactor
In-drum Compactor(Low force Compactor)


Pallet drying facility petra
Pallet Drying Facility (PETRA)

  • At pressures of 20 – 50 mbar (abs)

  • At temperatures of about 3000C

  • Up to about 8 drums at a time


Super compactor with horizontal piston fakir
Super-compactor with horizontal piston (FAKIR)

1: Exit2: Sliding door

3: Jib crane4: Grab

5: Compactor chamber6: Tipping device

7: Charger8: Working platform

9: Hydraulic system and control10 Hydraulic cylinder

11: Ram










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