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CIVL 7062 - Water Quality > Physical Characteristics of Water > Flashcards

Physical Characteristics of Water Flashcards

1
Q

List the 5 physical characteristics of water/wastewater

A

Total Solids
Turbidity
Colour
Temperature
Odour and Taste

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2
Q

Total solids are made up of what?

A

Total Suspended Solids (TSS)
Total Dissolved Solids (TDS)

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3
Q

Total Suspended Solids (TSS) can be broken into what two categories?

A

Volatile Suspended Solids (VSS)
Non-Volatile Suspended Solids (NVSS)

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4
Q

Volatile Suspended Solids (VSS) are otherwise known as what?

A

Organic Solids (can volatize at 550 deg C)

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5
Q

How are organics removed from water?

A

By the introduction of bacteria

The bacteria will eat the organic matter and become larger and settle out (which is easier to remove from water)

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6
Q

What is the size range for colloidal solids?

A

0.001 micron to 1 micron

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7
Q

How are colloidal solids removed from water?

A

They are turned into larger particles that will then settle out and can be removed from the water

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8
Q

What causes turbidity?

A

Colloidal and residual matter

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9
Q

What is turbidity?

A

A measure of light-transmitting properties of water

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10
Q

What are the units of turbidity?

A

NTU (Nephelometric Turbidity Unit)

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11
Q

Colloids can protect pathogens, true or false?

A

True

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12
Q

What are the 2 main phases of water treatment?

A

Solid Transformation and Removal
Disinfection

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13
Q

What is water typically disinfected with once it has been through the solid transformation and removal process?

A

Chlorine

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14
Q

How can chlorine be removed from water?

A

Through UV disinfection

Too much chlorine creates carcinogens

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15
Q

Through what units is colour measured in water?

A

Apparent Colour Unit (ACU)

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16
Q

What causes colour in natural water?

A

Dissolved Materials

17
Q

What is the main cause of colour in water streams that is a result of industrial waste?

A

Iron

18
Q

Water is less soluble in warmer temperatures, true or false?

A

True

19
Q

Chemical and biological reaction rates _______ with temperature

A

Increase

20
Q

Sensory perception of taste and odour is affected by temperature, true or false?

A

True

21
Q

Treated drinking water should be free of taste and odour issues, true or false?

A

True

22
Q

Odours associated with surface water result from what?

A

The presence of organic compounds

CIVL 7062 - Water Quality (4 decks)

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