200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Water Treatment Fermentation Food Production General.

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Presentation transcript:

Water Treatment Fermentation Food Production General Questions

What is the type of that looks drinkable but is not?

Contaminated water

Why is water treatment important?

Water is needed for everyday living

What does BOD stand for

Biological oxygen demand

What is drinkable water known as?

Potable

Why are rivers and other bodies of water known as Self water purification

Help to convert organic material into inorganic material

What is the goal of primary treatment

Removal of solid particle from water

What is the goal of secondary treatment?

Removal of pathogenic bacteria and viruses

What is the goal of tertiary treatment?

Removal of nitrates to prevent eutrotiphication, but is expensive and rarely preformed.

What is mineralization?

In nature aerobic microorganism convert organic material to inorganic material.

What is FLOC?

Is the puffy accumulations after alum is added

Fermentation occurs both desirable and undesirable.

True

What did the Sumerians ferment and when?

Cheese, 6000 BC

How much alcohol is in wine?

Up to 6%

What gas is produced when Yeast ferments grapes?

CO2

Why are hops added to beer?

Flavoring

What are some ways to prevent infection from microorganisms?

1.Temperature 2. pH 3. Intrinsic Factors (Shells, coverings) 4. Water availability

What is soy sauce made from?

Fungi and bacteria

In cheese production there is a solid and a liquid. What is each called and used for?

Solid – curd – cottage cheese Liquid – whey - cheese

In food posioning, what does botulism produce?

Neurotoxin

What type of yeast is used to make beer?

Brewer’s yeast

What percent of acid is vineagr

4%

How long does bottom fermentation take in beer production?

8-14 days

In milk production what production is used to clump milk proteins together?

Renin

Why is chlorine added to the water supply?

To kill anything that might of made it through the treatments

What is ALUM stand for and why is it used in water treatments?

Alum is a combination of aluminum and sulfate, used to clump together smaller suspended particles (bacteria & viruses) to settle out.