Radwaste Flashcards
What does the RWCU phase separators overflow to?
overflow to each other. then when full, overflows to Radwaste building tank ventilation
what drains into the waste holding tanks?
Equipment filter goes into waste holding tank A
Floor filter goes into waste holding tank B
Waste holding tank C normally not used except as a supply tank for the alternate bodyfeed pump if needed
What temp should water be maintained at and why?
< 140 deg F to keep from degrading resin
If G17-F087A and F087B are closed, what other 2 valves are affected?
Why are these interlocked?
F106A won’t close
F106B won’t open
Allows flow path to prevent overflow of floor drain separator
What’s the purpose of Distillate Sample Tank?
Collect and store water from SLC surveillance. Discharges to river
What’s the purpose of the waste surge tank?
collects condensate demin water
What’s the purpose of liquid radwaste?
Process and either recycle or dispose of liquid radwaste. Either sent to CST or River while being monitored
What’s the purpose of the floor drain oil separator tank?
ensures oil doesn’t enter liquid radwaste system and contaminate resin.
separates oil from the water steam that goes in floor drain collector tank
What will auto close the G17-F355 discharge basin isolation valve and force it to stay closed?
How do you reopen the valve after this occurs?
HI-HI Rad alarm on Radwaste effluent discharge
Using Key locked handswitch in Control Room
what will auto open and close the G17-F355 valve?
Auto close on Circ water blowdown flow low re-opens when cleared
Auto close after receiving high discharge flow will re-open when the flow drops below setpoint (usually 100 gpm)
When should the funda filters be backwashed?
When filter screens reach 20 cu. ft. or high DP of 60 psid
What tank is normally used for filling the CST?
Equipment drain sample tank
