WUS O80 Wastewater Introduction Online Mid Term II Quiz Fall 2021

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What is the consequence of a faster flow velocity in a grit chamber than recommended?

Increased collection of organic matter in the grit (correct)

Reduced collection of organic matter in the grit

No effect on organic matter collection

Increased efficiency of grit chamber

What is the influent Total Suspended Solids (TSS) concentration for the clarifier if the outlet concentration is 60 mg/l and the known removal efficiency is 75%?

300 mg/l

240 mg/l (correct)

120 mg/l

80 mg/l

If the total suspended solids in a plant effluent is 12 mg/l and the effluent flow is 12 MGD, what is the amount of solids discharged daily?

1,728,000 lbs (correct)

12,000 lbs

144,000 lbs

2,016,000 lbs

Where is the media in trickling filters typically placed?

On a system of tile or columnar underdrains Signup and view all the answers

Which type of bacteria are the primary organisms responsible for treating wastewater in the trickling filter process?

Aerobic bacteria Signup and view all the answers

In which type of pond is it important to completely mix and aerate the content?

Aerobic Signup and view all the answers

What is the recommended placement for media in a trickling filter system?

On a system of tile or columnar underdrains Signup and view all the answers

What is the main composition of matter in wastewater?

Grit, sand, and silt Signup and view all the answers

What are the main objectives of primary sedimentation?

Settleable solids and floatables Signup and view all the answers

What is the major purpose of an inlet baffle in a settling tank?

Reduce velocity and disperse the flow Signup and view all the answers

What does the term 'volatile' refer to in the context of wastewater treatment?

Easily evaporating Signup and view all the answers

What is the main purpose of the trickling filter media?

To provide nutrients to the zoogleal mass growing on it Signup and view all the answers

Is it true that a well-operating primary clarifier will generally remove nearly all of the influent suspended solids?

False Signup and view all the answers

What is primarily responsible for the effective working of an anaerobic pond?

Algae Signup and view all the answers

Is it true that the algae is primarily responsible for the effective working of an anaerobic pond?

False Signup and view all the answers

What is the primary purpose of the trickling filter media?

To provide nutrients to the zoogleal mass growing on it Signup and view all the answers

Is it true that a well-operating primary clarifier will generally remove nearly all of the influent suspended solids?

False Signup and view all the answers

In an anaerobic pond, what is primarily responsible for the effective working?

Algae Signup and view all the answers

What is the main function of a grit chamber with a faster flow velocity than recommended?

Decrease inorganic solid removal Signup and view all the answers

WUS O80 Wastewater Introduction Online Mid Term II Quiz Fall 2021

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Questions and Answers

What is the consequence of a faster flow velocity in a grit chamber than recommended?

What is the influent Total Suspended Solids (TSS) concentration for the clarifier if the outlet concentration is 60 mg/l and the known removal efficiency is 75%?

If the total suspended solids in a plant effluent is 12 mg/l and the effluent flow is 12 MGD, what is the amount of solids discharged daily?

Where is the media in trickling filters typically placed?

Which type of bacteria are the primary organisms responsible for treating wastewater in the trickling filter process?

In which type of pond is it important to completely mix and aerate the content?

What is the recommended placement for media in a trickling filter system?

What is the main composition of matter in wastewater?

What are the main objectives of primary sedimentation?

What is the major purpose of an inlet baffle in a settling tank?

What does the term 'volatile' refer to in the context of wastewater treatment?

What is the main purpose of the trickling filter media?

Is it true that a well-operating primary clarifier will generally remove nearly all of the influent suspended solids?

What is primarily responsible for the effective working of an anaerobic pond?

Is it true that the algae is primarily responsible for the effective working of an anaerobic pond?

What is the primary purpose of the trickling filter media?

Is it true that a well-operating primary clarifier will generally remove nearly all of the influent suspended solids?

In an anaerobic pond, what is primarily responsible for the effective working?

What is the main function of a grit chamber with a faster flow velocity than recommended?

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