Liquid Waste System(WL) Flashcards
What is the purpose of the Liquid Waste System(WL)?
- The purpose of the Liquid Waste System is to collect, segregate, and process all radioactive and potentially radioactive liquids generated in the plant.
- In general, all rector grade liquids are recycled, and all non-reactor grade liquids are precessed and disposed of in accordance with applicable regulations.
- The system is designed to control and minimize releases of radioactivity to the environment.
- The following are methods used to process Liquid Waste:
A. Filtration
B. Deminerlizers
C. Holdup and Decay
D. Dilution
What is the system designator for the Liquid Waste System?
WL
What is the system designator for the Reactor Coolant Drain Tank?
NCDT
What is the system designator for the Waste Drain Tank?
WDT
What is the system designator for the Waste Evaporator Feed Tank?
WEFT
What is the system designator for the Laundry and Hot Shower Tank?
LSHT
What is the system designator for the Floor Drain Tank?
FDT
What is the system designator for the Mixing and Settling Tank?
MST
What is the system designator for the Ventilation Unit Condensate Drain Tank?
VUCDT
What is the system designator for the Steam Generator Drain Tank?
SGDT
What is the system designator for the Monitor Tank Building?
MTB
What is the system designator for the Auxiliary Monitor Tank?
AMT
What are the categories of Liquid Waste?
- Deaerated Recyclable Liquids
- Aerated Recyclable Liquids
- Aerated Non-Recyclable Liquids
- Potentially Radioactive Soapy Liquids
- Lab Samples
What is the purpose of the Laundry and Hot Shower Tank Subsystem(LHST)?
The purpose of the LHST is to collect soapy liquids that are potentially radioactive and are not recyclable
What are the sources of liquid to the Laundry and Hot Shower Tank?
- Decon Area Showers and hand washes
- Auxiliary Building Service Sinks
- Men’s and women’s lavatory sinks
- Laundry machines
What is the normal release path for the Laundry and Hot Shower Tank?
The LHST is pumped to the Waste Monitor Tanks(WMTs), and released via 0EMF-49 to the RN system.
What is the alternate flow path for the Laundry and Hot Shower Tank?
The LHST can also be pumped to the Recycle Monitor(RMT) Tank, or to the Monitor Tank Building(MTB)
How many pumps are there in the LHST Subsystem, what is the power supply, and what will cause a pump trip?
- One pump
- SMXA
- Low level in the LHST(6”)
What is the purpose of the Floor Drain Tanks Subsystem(FDT)?
Collects liquids that are potentially radioactive but are generally suitable for plant discharge without treatment?
What is the motive force for water leaving the Floor Drain Tank?
Gravity flow
Where does the overflow from the Floor Drain Tank go?
Waste Evaporator Feed Tank Sump B
What drains to the Floor Drain Tank?
Inputs are via a pre-strainer:
1. Pre-strainer A receives input from everything but the 560’ elevation including:
A. Floor Drain Sump A and B
B. U1 and U2 Upper Head Injection Sump
2. Pre-strainer B receives input from the 560’ elevation only
What are the discharge paths of the Floor Drain Tank?
- WEFT, then to the MTB
- SGDT B, then to MTB
- Via MTB process equipment to the AMT
How many pumps are there in the FDT Subsystem, what is the power supply, and what will cause a pump trip?
- One pump for the station
- SMXA
- Low level in the FDT(11%)