Print Options

Card layout: ?

← Back to notecard set|Easy Notecards home page

Instructions for Side by Side Printing
  1. Print the notecards
  2. Fold each page in half along the solid vertical line
  3. Cut out the notecards by cutting along each horizontal dotted line
  4. Optional: Glue, tape or staple the ends of each notecard together
  1. Verify Front of pages is selected for Viewing and print the front of the notecards
  2. Select Back of pages for Viewing and print the back of the notecards
    NOTE: Since the back of the pages are printed in reverse order (last page is printed first), keep the pages in the same order as they were after Step 1. Also, be sure to feed the pages in the same direction as you did in Step 1.
  3. Cut out the notecards by cutting along each horizontal and vertical dotted line
To print: Ctrl+PPrint as a list

13 notecards = 4 pages (4 cards per page)

Viewing:

Book 2 Ch 6 - Process Wastes Practice Quiz

front 1

What must be done before draining or dewatering any in-ground tank?

back 1

Determine the water table level

front 2

What is a major limitation of using centrifuges for sludge dewatering?

back 2

High energy consumption and associated electrical costs

front 3

What is a tank called that excess sludge from a process is pumped into, where the solids are allowed to settle and compact?

back 3

Gravity thickener

front 4

What is the liquid removed from a settled sludge called?

back 4

Supernatant

front 5

What is used to precoat vacuum filter belts when dewatering jelly-like alum sludges?

back 5

Diatomaceaus earth

front 6

What is commonly added to sludge as a conditioner before dewatering?

back 6

Polymer

front 7

Where may trash and grit removed from the treatment process be disposed of?

back 7

An approved sanitary landfill

front 8

Dewatered sludge coming off a vacuum filter, belt filter press or centrifuge is called what?

back 8

Cake

front 9

Calculate the tons of sludge wasted of from a water plant per month using the data given:
Waste sludge flow rate = 10,500 gpd
Waste sludge suspended solids concentration = 8,500 mg/L
Days in month = 30

back 9

11 tons per month

front 10

What type of sludge dewatering unit consists of a rotating drum covered with a sheer cloth or coil springs that is partially submerged in chemically conditioned sludge slurry?

back 10

Vacuum filter

front 11

Where is water that is drained from the backwash recovery ponds or lagoons returned to?

back 11

The water plant headworks

front 12

How do lime softening sludges help the soil when applied to land?

back 12

They help raise the pH of the soil

front 13

Why are dewatered alum sludges not recommended for disposal on agricultural land?

back 13

The aluminum will harden the soils