LIQUID WASTE 1

Question 1

presence of free oxygen is not required

Answer 1

anaerobic

Question 2

runoff not contaminated with manure such as runoff from roofs, grassed areas, drives and
other areas which are not animal alleys

Answer 2

clean runoff

Question 3

process of killing all pathogenic microorganisms

Answer 3

disinfection

Question 4

part of total solids passing through the filter in a filtration procedure

Answer 4

dissolved solids

Question 5

liquid waste, partially or completely treated, flowing out of a reservoir, basin, or wastewater treatment plant

Answer 5

. effluent

Question 6

lagoons that can function as aerobic or anaerobic depending on the environment

Answer 6

facultative lagoons

Question 7

part of total solids remaining after volatile gases driven off at 600oC

Answer 7

fixed solids

Question 8

non-biodegradable component of liquid waste composed of sand, gravel, cinders or other
heavy solid materials

Answer 8

grit

Question 9

storage where liquid waste is stored before final disposal

Answer 9

holding pond

Question 10

liquid that flows into a containing space

Answer 10

influent

Question 11

pit in the ground where liquid waste is stored to produce a higher quality effluent

Answer 11

lagoon

Question 12

system of clay layers and/or geosynthetic membranes used to contain leachate and reduce or
prevent contaminant flow to groundwater

Answer 12

liners

Question 13

rainfall containing animal manure

Answer 13

. lot runoff

Question 14

accumulated moist animal excrement that does not undergo decomposition or drying; it
include feces and urine which may be mixed with bedding material, spilled feed or soil

Answer 14

manure

Question 15

microorganism capable of causing diseases

Answer 15

pathogenic microorganism

Question 16

treatment that causes substances in liquid waste to readily settle or float

Answer 16

primary treatment

Question 17

treatment used to convert dissolved or suspended materials into a form more readily
separated from the liquid waste being treated

Answer 17

secondary treatment

Question 18

precipitate resulting from coagulation or sedimentation of liquid waste

Answer 18

sludge

Question 19

watery mixture of insoluble solid

Answer 19

Slurry

Question 20

solids removed by filtration

Answer 20

Suspended solids

Question 21

residue remaining after water is removed from waste material by evaporation

Answer 21

total solids

Question 22

part of total solids driven off as volatile gases when heated to 600oC

Answer 22

volatile solids

Question 23

quantity of oxygen needed to satisfy biochemical oxidation of organic matter in waste sample
in 5 days at 20oC

Answer 23

5-day Bio-Chemical Oxygen Demand (BOD5 )