Waste Water Treatment

Question 1

What is the purpose of the Waste Water Treatment SYstem?

Answer 1

Process NON-RADIOACTIVE WASTE STREAMS to remove OIL, GREASE, and SOLIDS prior to discharge to ILLINOIS RIVER

Question 2

What are teh general processes used by WWT?

Answer 2

Equalization, Flocculation, Sedimentation, Filtration

Question 3

What are the collection points for plant water that will be routed to WWT?

Answer 3

U2 Ejector Station
U2/3 Ejector Station
U3 Ejector Station
U2/3 CH Sump

Question 4

What are the inputs to the U2 Ejector StatIon? - where does it go?

Answer 4

Non-contaminated floor drains of U2

Goes to U1 Oil Separator

Question 5

What are the inputs to the 2/3 Ejector STation?

Where does it route to?

Answer 5

U3 roof drains, U2 EHC Non-Contaminated flood rains, and Turbine Oil Tank room floor drains
Routes to 2/3 Oil Separator

Question 6

What are the inputs to the U3 Ejector STation?

Where does it route to?

Answer 6

Inputs are Non-contaminated floor drains of U3.

Routes to 2/3 Oil Separator

Question 7

What is the input fro the 2/3 CH Sump?

Where does it route to?

Answer 7

Input from drainage of 2/3 CH

Routes DIRECTRLY to WWT Equalization tank

Question 8

What are the inputs of the U1 Oil Separator?

Where does it route?

Answer 8

U1 Non Rad Floor Drains
SBO Building Drains
CHem Cleaning Rain Drains
Discharge of U2 Ejector STation
Sumps transfer to WWT Equalization Tank

Question 9

What inputs to the 2/3 Oil Separator?

Where does it route?

Answer 9

Takes input from 2/3 Ejector station, and U3 ejector station

Sumps route separator to WWT Equalization Tank

Question 10

What is the General Flow Path in the WWT building?

Answer 10

Equalization Tank - Oil Skimmer (IN Tank) - Equalization Tank Transfer Pumps - Splitter Box 1 - Flocculator/Clarifier - Splitter Box 2 - Gravity Sand Filter - Clearwell - Sludge Drying Beds - Discharge to ILLINOIS RIVER

Question 11

What exists in the Equalization tank to separate oil skimmer from teh rest of the tank?

Answer 11

The tank is split by a baffle

Question 12

What is flocculation?

Answer 12

Gathering of particles by addition of compound for adherence to form larger masses.

Question 13

What is added to aid in flocculation?

Answer 13

ALUM

Question 14

What is Equalization?

Answer 14

Collection and storage of inputs prior to processing

Question 15

What is sedimentation?

Answer 15

Settling out of large particles

Question 16

What is Filtration?

Answer 16

Filtering to remove suspended solids

Question 17

What are the two sections of the large above ground WWT tanks called?

Answer 17

Flocculator - inner

Clarifier - outer

Question 18

What is used in the Gravity Sand Filter as filter media?

Answer 18

2 feet anthracite coal and 12 inches of sand

Question 19

WHat is used to backwas the filter system?

Answer 19

Filter backwash pumps are in the clearwell and use the clearwell water to backwash sand filter

Question 20

What exists in the WWT system to ensure that the water is okay for discharge?

Answer 20

Composite sampler

Question 21

How many sludge drying beds are there?

Answer 21

5

Question 22

What is the purpose of the chemical feed system?

Answer 22

This is the alum addition system - aids in flocculation - auto system available although doesn’t currently work. Feeds Alum into splitter Box 1

Question 23

How does Instrument Air support WWT?

Answer 23

Supplies for operating pneutmatic equipment - compressors, dryers, and controls are in the building

Question 24

What is the WWT Hydropneumatic system for?

Answer 24

Located on the mezz level above WWT Control panel

Uses well water from well water tank gravty flows.

Question 25

What feeds WWT components power?

Answer 25

MCC 20-7 and 30-6