Dean Lampman
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Wastewater Wastewater Treatment Study Material Quiz on General Wastewater Knowledge, created by Dean Lampman on 18/12/2017.

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Dean Lampman
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General Wastewater Knowledge

Question 1 of 33

1

What is the volume of 1 ft3 of water?

Select one of the following:

  • 8.34 gal

  • 62.4 gal

  • 92.84 gal

  • 7.48 gal

Explanation

Question 2 of 33

1

What is considered to be a neutral pH?

Select one of the following:

  • 6.5

  • 14.0

  • 10.0

  • 7.0

Explanation

Question 3 of 33

1

What does the units parts per million (ppm) mean ?

Select one of the following:

  • 1 pound per million gallons

  • 1 gallon per million pounds

  • 8.34 pounds per million gallons

  • 10 milligrams per liter

Explanation

Question 4 of 33

1

Which is the biological process that follows primary treatment?

Select one of the following:

  • Preliminary treatement

  • Tertiary treatement

  • Activated sludge process

  • Secondary clarification

  • Chlorination

Explanation

Question 5 of 33

1

Which of the following is considered to be the least harmful bacteria?

Select one of the following:

  • Typhoid

  • Fecal coliform

  • Cholera

  • Streptococcus

Explanation

Question 6 of 33

1

Which is the physical process that follows an aeration tank?

Select one of the following:

  • Preliminary treatement

  • Tertiary treatment

  • Activated sludge process

  • Secondary clarification

  • Chlorination

Explanation

Question 7 of 33

1

What does the unit parts per million (ppm) mean?

Select one of the following:

  • 1 pound per million pounds

  • 1 gallon per million gallons

  • 8.34 pounds per million gallons

  • 1 milligram per liter

  • All of the available answers

  • None of the available answers

Explanation

Question 8 of 33

1

What is another term for inorganic solids?

Select one of the following:

  • Volatile

  • Non-volatile

  • Dissolved

  • Soluble

Explanation

Question 9 of 33

1

What does the term aliquot mean?

Select one of the following:

  • Composite sample

  • Grab sample

  • The total volume of sample

  • A portion of a sample

Explanation

Question 10 of 33

1

What is the BOD test a measure of ?

Select one of the following:

  • Suspended solids

  • Organic content

  • Dissolved solids

  • Alkalinity

Explanation

Question 11 of 33

1

Which type of wastewater typically has the highest demand for oxygen?

Select one of the following:

  • Domestic

  • Storm water

  • Sanitary

  • Industrial

Explanation

Question 12 of 33

1

What is the correct incubation time and temperature for the BOD test?

Select one of the following:

  • 5 days at 20°F

  • 5 days at 20°C

  • 20 days at 5°C

  • 5 days at 68°C

Explanation

Question 13 of 33

1

What is the term for a liquid or sludge with a pH of 6.0?

Select one of the following:

  • Alkaline

  • Neutral

  • Basic

  • Acidic

Explanation

Question 14 of 33

1

What are very small, finely-divided solids known as:

Select one of the following:

  • Settleable

  • Total

  • Colloidal

  • Inert

Explanation

Question 15 of 33

1

Which of the following best describes the term anoxic?

Select one of the following:

  • High dissolved oxygen is present

  • Nearly anaerobic; very low dissolved oxygen but nitrates and/or nitrites are present

  • Completely anaerobic; no dissolved oxygen, nitrates, or nitrites

  • Nitrates are very low

Explanation

Question 16 of 33

1

Which is a higher life form in the activated sludge process.... a free swimming ciliate, a stalked ciliate, or a rotifer?

Select one of the following:

  • Free swimming ciliate

  • Stalked ciliate

  • Rotifer

  • They are all the same

Explanation

Question 17 of 33

1

Which term describes the conversion of ammonia nitrogen to oxidized (usually nitrate)?

Select one of the following:

  • Fermentation

  • Log Growth

  • Nitrification

  • Denitrification

Explanation

Question 18 of 33

1

What will organic material do in a muffle furnace?

Select one of the following:

  • it will burn

  • it will not burn

  • it will change to inorganic material

  • It will convert to dissolved solids

Explanation

Question 19 of 33

1

What is the best definition of a shock load?

Select one of the following:

  • An unexpected bump

  • A strong influent waste strength

  • A high concentration of TSS

  • A heavy truck load entering the plant

Explanation

Question 20 of 33

1

Which environment does filamentous bacteria like best?

Select one of the following:

  • Aerobic

  • Anaerobic

  • Facultative

  • Anoxic

Explanation

Question 21 of 33

1

What does one cubic foot of water weigh at 4°C?

Select one of the following:

  • 7.48 pounds

  • 8.34 pounds

  • 3.14159 pounds

  • 62.4 pounds

Explanation

Question 22 of 33

1

What is a higher life form in the activated sludge process....a free swimming ciliate or a stalked ciliate?

Select one of the following:

  • Free swimming ciliate

  • Stalked ciliate

  • They are both the same

  • Rotifers are younger than free swimmers

Explanation

Question 23 of 33

1

What does "F" mean in the process parameter F/M ratio?

Select one of the following:

  • lbs/day volatile microorganisms

  • gpd plant flow

  • lbs/day influent CBODs

  • gpd waste sludge

Explanation

Question 24 of 33

1

What does the term adsorption mean?

Select one of the following:

  • Impregnate a liquid with air

  • The taking in of one substance into the body of another

  • To gather onto the surface of a substance

  • Soak like a sponge

Explanation

Question 25 of 33

1

What does the term loading refer to?

Select one of the following:

  • The pounds of MLVSS under aeration

  • The cfm of air supplied to the aeration tank

  • The pounds of BOD entering the aeration tank

  • The amount of waste sludge removed from the system

Explanation

Question 26 of 33

1

Which two age parameters are most similar to each other?

Select one of the following:

  • GSA and F/M ratio

  • SRT and MCRT

  • SRT and GSA

  • GSA and MCRT

Explanation

Question 27 of 33

1

What type of solids cannot be removed with typical effluent filters?

Select one of the following:

  • Settleable

  • Suspended

  • Total

  • Dissolved

Explanation

Question 28 of 33

1

What is not a typical loading equivalent in domestic wastewater?

Select one of the following:

  • About 0.17 lbs BOD/person/day

  • About 0.2 lbs TSS/person/day

  • About 100 gal/person/day

  • About 100 mg/l /NH3/person/day

Explanation

Question 29 of 33

1

What does the "M" mean in the process parameter F/M ratio?

Select one of the following:

  • lbs volatile microorganisms in aeration

  • gpd plant flow

  • lbs/day influent BOD entering aeration

  • gpd waste sludge leaving aeration

Explanation

Question 30 of 33

1

Which has a higher pH, sodium hydroxide or aluminum sulfate?

Select one of the following:

  • Aluminum sulfate

  • Sodium hydroxide

  • They are both the same

  • Alum has a high PH

Explanation

Question 31 of 33

1

What is a typical loading equivalent for TSS in domestic wastewater?

Select one of the following:

  • About 0.17 lbs/person/day

  • About 0.2 lbs/person/day

  • About 300 gal/person/day

  • About 200 mg/L /person/day

Explanation

Question 32 of 33

1

What type of solids are identified in a muffle furnace test?

Select one of the following:

  • Settleable

  • Suspended

  • Volatile

  • Dissolved

Explanation

Question 33 of 33

1

What is the main difference between a conventional activated sludge process and an advanced wastewater treatment process?

Select one of the following:

  • CBOD5 Removal

  • TSS removal

  • Nitrogen & phosphorus removal

  • Metals removal

Explanation

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