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Intro To Enviro > Chpt 5.1-5.6 (Water Polution) > Flashcards

Chpt 5.1-5.6 (Water Polution) Flashcards

1
Q

Clean Water Act

A

Jurisdiction over rivers, lakes, and other natural water bodies.

Regulates what people can output.

Deals with sewage treatment

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2
Q

Safe Water Drinking Act

A

Regulates what people can intake

Sets public drinking water standards

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3
Q

Hydrologic Cycle

A

Natural water cycle.

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4
Q

Withdrawals

A

Total Loss of water

Withdrawals = consumption + returns

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5
Q

Water Pollutant Types

A

Pathogens

Oxygen demanding wastes

Nutrients

Salts

Heavy Metals

Pesticides

Volatile Organic Chemicals

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6
Q

Contaminated water disease catagories

A

Waterborne

Water-washed

Water-based

Water-related

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7
Q

Oxygen demanding wastes

A

Wastes that lower waters dissolved oxygen content

Normally biodegradable organic substances or inorganic compounds that add to oxygen demand.

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8
Q

DO

A

Dissolved oxygen content

Min recommended for fish is 5mg/L

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9
Q

Nutrients

A

Chemicals that increase algae and plant growths thus increasing oxygen demand

Nitrogen, phosphorus, carbon, sulfur, calcium, potassium, iron, manganese, boron, and colbalt

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10
Q

Types of oxygen demand

A

Chemical oxygen demand

Biochemical oxygen deman

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11
Q

Biochemical Oxygen Demand

A

Oxygen demanded by living things to live

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12
Q

Chemical Oxygen Demand

A

Oxygen used up by chemicals as they oxidize

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13
Q

Pollution source types

A

Point source

Non point source

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14
Q

Point source

A

Discharge pipes, dumping sites. Pollution comes from one source

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15
Q

Non point Source

A

More intermediate and dispersed sources of pollution.

Agriculture, farms, pastures, urban areas

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16
Q

Biochemical oxygen demand types

A

Carbonaceous oxygen demand

Nitrogenous oxygen demand

17
Q

Five day BOD test

A

Test used to measure the BOD of a sample of water.

18
Q

Nitrification

A

Additional dissolved oxygen demand caused by oxidizing nitrogen

19
Q

Theoretical Oxygen Demand

A

The theoretical measure of oxygen demand. Is calculated from chemical equations

20
Q

Chemical Oxygen Demand

A

Measures oxygen demand while ignoring the ability of microorganisms to degrade the waste. Uses a strong oxidizing chemical to oxidize the wastes instead of waiting on microorganisms to do the job.

21
Q

Deoxygenation

A

Rate that is proportional to BOD

22
Q

Rearation

A

Rate at which oxygen is replenished

23
Q

Oxygen sag curve

A

Graph of DO vs miles down river

As temp increases waste decomposes faster

Intro To Enviro (4 decks)

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