Solid Radwaste Flashcards
[SR]
4 subsystems?
-Spent Resin Transfer
-Wet Waste Processing
-Dry Waste Disposal
-Filter Handling & Disposal
2 Solid waste waste management buildings?
DAWPS -Dry Active Waste Processing & Storage
-Low Level Radioactive Material Storage Facility
DAWPS - Dry Active Processing & Storage facility function?
-centralized location to handle,process,package,& store of radioactive trash
Low Level Radioactive Material Storage Facility provide ?
Provides interm storage capacity for radioactive material prior to reuse,shipment for processing or disposal, or transfer to other licensees
[SR]
Where does [SR] receive Ion Exchanger Resin from ?
-LR system
-Chemical & Volume Control system
-Fuel Pool Cleanup
[SR]
How is Spent Resin Processed ?
Spent Resin is sluiced to a liner or High Integrity Container(HIC), then dewatered & dried with Resin Drying system
[SR]
What system do the Local Control panels for SR provide centralized control of equipment in SR system ?
-Radwaste Control Room Instrument Cabinet
-Solidification panel
[SR]
What remote operated equipment can be control from SR Control Panel ?
-Resin Trasnfer/ Dewatering pump
-RMW for resin transfers & system flushing
What happens in Main Control Room if there is an alarm inside the Radwaste Control Room ? What is the time delay for the trouble alarm ?
-There will be a trouble alarm in the Main Control room
-If alarm in Radwaste Control Room is acknowledged in 5mins, then no trouble alarm in Main Control Room
What’re the Spent Resin Tanks used for ?
1 High Activity & 1 Low Activity are provided to holdup spent resin for decay prior to Wet Waste processing
[SR]
What kind of resin does the High Activity Spent Resin Tank have ? What Ion Exchangers does it normally receive spent resin from ?
-Receives any resin that exceeds 500mr/hr
Spent Resin:
-CH Ion Exchangers
-PC Cleanup Ion Exchangers
[SR]
Where does the Low Activity Spent Resin Tanks normal receive spent resin from ?
Receivers Spent resin from:
-LR Adsorption Bed & Mixed Bed Demineralizes
[SR]
How is resin removal accomplished ? What is backup to fluidize spent resin tank beds ?
-Line inside a line which provides sluice water & sluices it out
-Air & Nitrogen are backup methods for Fluidizing
[SR]
What is the Spent Resin Transfer/Dewatering Pump used for ?
-Used to transfer resin from Aux.Building & Radwaste Building Ion Exchangers to Spent Resin Tanks
-Transfers contents Spent Resin Tanks to Resin Drying system
What is the Resin/Dewatering Pump powered from ?
Powered from NH
What supplies seal water to Resin Transfer/Dewatering pump?
RWT - Reactor Makeup Water
What cautions are there with spent resin?
-exothermic reactions
in waste container during drying of spent resin
In event of Exothermic reaction what should you do ?
Flood the container with water using the same waste transfer hose so you don’t have to disconnect the hose until process is complete
What is the Radioactive Filter Transfer Cask used for?
Used to shield highly radioactive filters from filter vault to disposable container
How many inches of lead is placed between two shells ?
8inches of lead is provided for shielding between two shells
What’re the disposable containers ?
-Carbon Steel Drums
-Highly Integrity Containers
-Liners
What is Dry Active Waste compose of ?
-Rags
-Paper
-Plastic
-Rubber
-Wood
-Glass
-Concrete
-Metal
What is the three compartments the DAWPS facility broken up into ?
-Storage Area
-Processing Area
-Offices & change area
