WUS 056 Advanced Treatment Topics Quiz Results

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What is the measurement of detention time in activated carbon filtration called?

Process velocity

Filtration rate

Empty bed contact time (correct)

Molecular weight cutoff

What is a mixture of suspended particles in water known as?

Saturated solution

Homogeneous mixture

Slurry (correct)

Hydrophilic solution

What is PAC treatment commonly used to combat?

Pathogens

Fluoride

Phosphates

Nitrates (correct)

Which material is commonly used as a filter medium for the removal of SOCs from drinking water?

Anthracite coal Signup and view all the answers

What could be used as a source of carbon for manufacturing activated carbon?

Bamboo Signup and view all the answers

What does the abbreviation GAC stand for in water treatment?

Granular activated carbon Signup and view all the answers

Which of the following is a common means of transferring ozone gas into water?

Fine bubble diffuser Signup and view all the answers

What is the purpose of fluoride addition to drinking water?

Dental health of children Signup and view all the answers

What is the most common means to feed a liquid chemical solution into drinking water supplies?

Positive displacement pumps Signup and view all the answers

What is the maximum concentration of a solute that can be dissolved within a solution known as?

Saturation Signup and view all the answers

Which of the following metal contaminants of drinking water could be present due to the effects of corrosion?

Sodium Signup and view all the answers

Which of the following processes can cause the precipitation of dissolved manganese?

All of the above Signup and view all the answers

What is the main concern with elevated levels of iron in drinking water?

Staining of plumbing and laundry Signup and view all the answers

Which of the following is the most likely result of raising the pH of water?

The formation of insoluble precipitates of manganese Signup and view all the answers

Which of the following membrane processes will have the largest pore size?

All of these processes have similar pore sizes Signup and view all the answers

Which of the following processes is capable of the direct removal of viruses without any coagulation/flocculation pretreatment?

All of the above Signup and view all the answers

Which of the following processes will use hollow fiber membranes?

Ultrafiltration Signup and view all the answers

Which of the following processes is capable of desalination?

Pressure filtration Signup and view all the answers

What is the approximate reject rate for microfiltration and ultrafiltration?

$5%$ Signup and view all the answers

Which of the following is a concern associated with hard water?

Increased DBP formation Signup and view all the answers

Temporary hardness in water is also known as

Manganese hardness Signup and view all the answers

Non-carbonate hardness is also known as

Sulfate hardness Signup and view all the answers