Equipment Drains

Question 1

What is the purpose of Radwaste?

Answer 1

Receive potentially contaminated water wtihin the plant, ‘process’ it in batches, send those batches to above ground sample tanks, and, if aparameters allow, route the sample batches back to 2/3 CSTs for re-use

Question 2

What is the purpose of the Equipment Drain System?

Answer 2

Receive high quality liquid waste from anticipated leak off points and process it for reuse

Question 3

What is the Waste Collector Tank? Capacity? Location

Answer 3

It collects the water from the equipment drain systems, anticipated, clean, leakoff points.
33,000gal
RW Basement

Question 4

What are the inputs for the Waste Collector Tank?

Answer 4

RBEDT
DWEDS
DWFDS
TBEDS
Waste Demin Off-Standard
Off-Gas Filter Building PDT Pp
Off Gas Drain Pump
Bed Plate Drains

Question 5

How many pumps are there for the Waste Collector Tank and where are they?

Answer 5

there are 2. Located in RW Basement

Question 6

What is the Waste Surge Tank? Location? Capacity?

Answer 6

Provides a place from which to batch river discharges.
Also large volume for water in excess of Waste Collector Tank Capacity
Located in Tank Farm
77,000gal

Question 7

How many Waste Surge Tank Pumps are there? Where are they?

Answer 7

1. RW Mezz

Question 8

How many Waste Collector Filters are there? Where are they?

What are their flow limits?

Answer 8

2 - normally 1 in service.
Located in vaults on RW Mezz
Limited to a max DP of 20psid w/ nominal flow of 200gpm
These remove particulates from the water from WCT or WSgT

Question 9

What is the Waste Demin Purpose? LOcation?

Flow Limit?

Answer 9

Mixed resin Demin to remove ionic impurities from filter effluent
Located on RW Basement
Limited to max DP of 40psid

Question 10

What are the Waste Sample Tanks?
How many are there?
Where are they?
Capacity?

Answer 10

Provide a place from which to collect water processed from the Waste Filter, MR and ALPS
Located in Tank Farm
There are 3 - Each 33,000gal

Question 11

What is the Resin Cleaner Sludge Tank?
Location?
Capacity?

Answer 11

Collects Inputs from Ultrasonic Resin Cleaner
RW Basement
27,500gal

Question 12

What is the Waste Filter Sludge Tank?
Location?
Capacity?

Answer 12

Collects inputs from WCF backwashes, Fuel Pool Filter Backwash and WCT & WSgT blow down
RW Basement
27,500 gal

Question 13

What is the Floor Drain Filter Sludge Tank?
Location?
Capacity?

Answer 13

Collects inputs from all filter dome vents, FDCT blowdown, and the A/B Waste Neut Tank Blowdown
RW Basement
27,500gal

Question 14

What is the Spent Resin Tank?
Location?
Capacity?

Answer 14

Collects inputs from the fuel pool demins, reactor water cleanup demins, condensate demins, max demins, waste demin and mix and hold tank
RW Basement
15,000gal

Question 15

What is the RW Sparging system?

Answer 15

Air Compressor system used to supply mixing air for sampling

Question 16

What is the RW Pump Seal Water System for?

Answer 16

Used to seal RW pumps to minimize leakage of highly contaminated fluids out of RW systems

Question 17

What level is it needed to trip the outdoor tank heaters? why?

Answer 17

20% level - because will become uncovered and burn up heater

Question 18

What tech spec limits are associated with RW Water?

Answer 18

For all ABOVE GROUND TANKS:
No one tank may exceed 0.7Ci and all above ground tanks may not exceed 3Ci TOTAL
MUST get underground w/in 48 hrs if TS limit exceeded to ensure that in the event of an uncontrolled release of the tank’s contents, the resulting limits would not exceed limits

Question 19

WHAT PCIS ISOLATION WILL AFFECT RW?

Answer 19

Group II
DWEDS and DWFDS valves isolate
RBEDT Pups and RBFDS Pumps Trip
RBEDT Pump Disch Valves close and recirc valve opens