Landfill

Question 1

Average American refuse per day

Answer 1

6 lbs

Question 2

Average American plastic per year

Answer 2

60 lbs

Question 3

Rubbish inorganic or organic

Answer 3

Inorganic

Question 4

Garbage inorganic or organic

Answer 4

Organic

Question 5

Refuse

Answer 5

Includes garbage and rubbish

Question 6

LEA

Answer 6

Local Enforcement Agency

Question 7

Active landfill inspection

Answer 7

Monthly

Question 8

Trench method

Answer 8

Used in terrain, trench is dug then filled with solid waste and covered in soil

Question 9

Area method

Answer 9

Most common, solid waste is placed on the side of the hill or slope

Question 10

Valley of ravine method

Answer 10

Naturally developed large depression or slope

Question 11

Landfill classifications

Answer 11

Class 1: hazardous materials (waste)
Class 2: low levels haz mat
Class 3: Municipal solid waste (no haz mat)

Question 12

Leachate and methane gas generation

Answer 12

Produces leachate and methane gas

Question 13

Landfill cover methods

Answer 13

Daily cover, Intermediate cover and Final cover

Question 14

Dail cover

Answer 14

6 in of compacted soil at end of day, prevents fly larvae emergence, alternative daily cover

Question 15

Final cover (foundation layer)

Answer 15

24 in of soil, approved alternate final cover design

Question 16

Intermediate cover

Answer 16

12 in

Question 17

Alternative daily cover (A.D.C.)

Answer 17

Tarps (geosynthetic over)
Green material (not used often)

Question 18

Purpose for land fill covers

Answer 18

Odor control, vector control, prevent waste from blowing off site, fire prevention and prevents scavenging

Question 19

Soil type

Answer 19

Sandy loam (compatible mixture of soil and sand)

Question 20

Landfill ideal slope

Answer 20

2:1 is 50%

Question 21

Final closing slope

Answer 21

3:1 is 33%

Question 22

Decomposition aerobic or anaerobic

Answer 22

Aerobic

Question 23

Decomposition length

Answer 23

Aerobic: 4-60 days
Anaerobic: after 60 days

Question 24

Gases produced in anaerobic decomposition

Answer 24

Methane (CH4), Carbon dioxide (CO2), Hydrogen sulfide (H2S)

Question 25

Settlement monitoring

Answer 25

30 days

Question 26

Settlement occurring

Answer 26

During first 5 years (90%)

Question 27

Structure building over settlement

Answer 27

No, can collapse

Question 28

Leachate

Answer 28

Liquid that passes through a landfill

Question 29

Refuse collection frequency

Answer 29

Based on fly breeding, temp and humidity

Question 30

Active compost temperatures

Answer 30

50 C or 122 F

Question 31

Active compost temperature to kill fly larvae

Answer 31

Greater than 131 F

Question 32

Composting methods

Answer 32

Windrows, aerated static piles, PFRP (Process to further reduce pathogens)

Question 33

Windrows

Answer 33

Rows of compost piles, 131 F for 15 days and turn it 5 times

Question 34

Aerated Static piles

Answer 34

131 F for 3 days

Question 35

PFRP (process to further reduce pathogens)

Answer 35

Starts when piles reach 131 F

Question 36

Good soil colors

Answer 36

Brown, red

Question 37

Bad soil colors

Answer 37

Black, blue

Question 38

Erosion control

Answer 38

Universal waste (e-waste)