Kentucky wastewater treatment operator certification
Study online at https://quizlet.com/_a0bv6p
1. absorption taking in substance into body of another
2. acid A substance that increases the hydrogen ion concentration of a solution.
lowers PH
corrosive
3. activated sludge produced in raw or settled wastewater by the growth of bacteria, in the presence
of dissolved oxygen.
4. activated sludge A biological wastewater treatment process which speeds up the decomposition of
process wastes in the wastewater being treated. Activated Sludge is added to wastewater
and the mixture (mixed liquor) is aerated and agitated. After some time in the
aeration tank, the activated sludge is allowed to settle out by sedimentation and
is disposed of (wasted) or reused (returned to the aeration tank) as needed, the
remaining wastewater then undergoes more treatment.
5. adsorption The process of binding or sticking to a surface.
6. advanced waste Any process of water renovation that upgrades treated wastewater to meet specific
treatment reuse requirements.
7. aeration the process by which air is circulated through, mixed with or dissolved in a liquid
or substance.
8. aerobes Bacteria that require oxygen to grow
9. aerobic bacteria bacteria that use oxygen for cellular respiration
10. air lift type of pump, air injected at the bottom to lift water to the top, like percolator
coffee pot
11. algae microscopic plants. live in or on water or on structures near water, make o2 during
day, use o2 at night, affect PH and DO
, Kentucky wastewater treatment operator certification
Study online at https://quizlet.com/_a0bv6p
12. aliquot A portion of a well-mixed sample removed for testing
13. alkalinity ability of water to buffer acids
14. anaerobic Process that does not require oxygen
15. anaerobic bacte- bacteria that do not require oxygen to survive
ria
16. anaerobic diges- is the decomposition of waste under anaerobic conditions to produce biogas and
tion a compost-like residue
17. anoxic oxygen deficient less than .5 ppm
18. bacteria (microbiology) single-celled or noncellular spherical or spiral or rod-shaped
organisms lacking chlorophyll that reproduce by fission
19. baffle board used to direct flow, uniform velocities, absorb energy, divert, guide, agitate
liquids
20. base a compound that produces hydroxide ions in solution. raises PH
21. biomass the total mass of organisms in a given area or volume.
22. biosolids A primarily organic solid product produced by wastewater treatment processes
that can be beneficially recycled. The word biosolids is replacing the word sludge
when referring to treated waste.
23. Biochemical Oxy- A measure of the amount of dissolved oxygen required to break down the organic
gen Demand material in a given volume of water through aerobic biological activity
(BOD)
24. blank sample being tested is not added
25. buffer
, Kentucky wastewater treatment operator certification
Study online at https://quizlet.com/_a0bv6p
A solution that minimizes changes in pH when extraneous acids or bases are
added to the solution.
26. bulking a condition arising when sludge floats rather than settles in secondary sewage
treatment. can be caused by filamentous bacteria
27. Carbonaceous only the BOD required to remove carbon. based
Biochemical
Oxygen Demand
(CBOD)
28. cavitation formation and collapse of gas bubbles due to low pressure. can cause pitting.
makes noise.
29. centrifuge device to separate substances by spinning them at high speed
30. chlorination disinfection of water by the addition of small amounts of chlorine or a chlorine
compound
31. comminutor (A Preliminary Treatment) A circular grinder designed to grind the solids coming
through the screen into pieces about 0.3 cm or smaller.
32. composite sam- mixture of several samples over 24 hrs
ple
33. denitrification process by which bacteria convert nitrates into nitrogen gas, anoxic process
34. detritus heavy coarse grit in wastewater
35. Diffused-Air Aer- A diffused-air activated sludge plant takes air, compresses it, and then discharges
ation the air below the water surface of the aerator through some type of air diffusion
device.
36. Equalizing Basin
Study online at https://quizlet.com/_a0bv6p
1. absorption taking in substance into body of another
2. acid A substance that increases the hydrogen ion concentration of a solution.
lowers PH
corrosive
3. activated sludge produced in raw or settled wastewater by the growth of bacteria, in the presence
of dissolved oxygen.
4. activated sludge A biological wastewater treatment process which speeds up the decomposition of
process wastes in the wastewater being treated. Activated Sludge is added to wastewater
and the mixture (mixed liquor) is aerated and agitated. After some time in the
aeration tank, the activated sludge is allowed to settle out by sedimentation and
is disposed of (wasted) or reused (returned to the aeration tank) as needed, the
remaining wastewater then undergoes more treatment.
5. adsorption The process of binding or sticking to a surface.
6. advanced waste Any process of water renovation that upgrades treated wastewater to meet specific
treatment reuse requirements.
7. aeration the process by which air is circulated through, mixed with or dissolved in a liquid
or substance.
8. aerobes Bacteria that require oxygen to grow
9. aerobic bacteria bacteria that use oxygen for cellular respiration
10. air lift type of pump, air injected at the bottom to lift water to the top, like percolator
coffee pot
11. algae microscopic plants. live in or on water or on structures near water, make o2 during
day, use o2 at night, affect PH and DO
, Kentucky wastewater treatment operator certification
Study online at https://quizlet.com/_a0bv6p
12. aliquot A portion of a well-mixed sample removed for testing
13. alkalinity ability of water to buffer acids
14. anaerobic Process that does not require oxygen
15. anaerobic bacte- bacteria that do not require oxygen to survive
ria
16. anaerobic diges- is the decomposition of waste under anaerobic conditions to produce biogas and
tion a compost-like residue
17. anoxic oxygen deficient less than .5 ppm
18. bacteria (microbiology) single-celled or noncellular spherical or spiral or rod-shaped
organisms lacking chlorophyll that reproduce by fission
19. baffle board used to direct flow, uniform velocities, absorb energy, divert, guide, agitate
liquids
20. base a compound that produces hydroxide ions in solution. raises PH
21. biomass the total mass of organisms in a given area or volume.
22. biosolids A primarily organic solid product produced by wastewater treatment processes
that can be beneficially recycled. The word biosolids is replacing the word sludge
when referring to treated waste.
23. Biochemical Oxy- A measure of the amount of dissolved oxygen required to break down the organic
gen Demand material in a given volume of water through aerobic biological activity
(BOD)
24. blank sample being tested is not added
25. buffer
, Kentucky wastewater treatment operator certification
Study online at https://quizlet.com/_a0bv6p
A solution that minimizes changes in pH when extraneous acids or bases are
added to the solution.
26. bulking a condition arising when sludge floats rather than settles in secondary sewage
treatment. can be caused by filamentous bacteria
27. Carbonaceous only the BOD required to remove carbon. based
Biochemical
Oxygen Demand
(CBOD)
28. cavitation formation and collapse of gas bubbles due to low pressure. can cause pitting.
makes noise.
29. centrifuge device to separate substances by spinning them at high speed
30. chlorination disinfection of water by the addition of small amounts of chlorine or a chlorine
compound
31. comminutor (A Preliminary Treatment) A circular grinder designed to grind the solids coming
through the screen into pieces about 0.3 cm or smaller.
32. composite sam- mixture of several samples over 24 hrs
ple
33. denitrification process by which bacteria convert nitrates into nitrogen gas, anoxic process
34. detritus heavy coarse grit in wastewater
35. Diffused-Air Aer- A diffused-air activated sludge plant takes air, compresses it, and then discharges
ation the air below the water surface of the aerator through some type of air diffusion
device.
36. Equalizing Basin
