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Drinking water treatment Questions and Answers (100% Correct Answers) Already Graded A+

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Institution Drinking Water Treatment
Course Drinking Water Treatment
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Drinking water treatment Questions and Answers (1Drinking water treatment Questions and Answers (1Drinking water treatment Questions and Answers (1

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1

Drinking water treatment Questions and
Answers (100% Correct Answers) Already
Graded A+
How many people lack safely managed drinking water
services [ Ans: ] 2.2 Billion

1/4 of people around the world

Country with very high water stress [ Ans: ] Qatar

But uses desalination of ocean water

Solutions to keep water safe and clean [ Ans: ] Dispose
pharmaceuticals wisely

Not pour detergents down drains

Preserve natural resources

Reduce water usage

Can you drink montreal tap water [ Ans: ] Yes but not
everywhere cause still some lead pipes

Also atrazine contamination (pesticide)

Problems from bottled water [ Ans: ] Microplastics

Air pollution and Fossil fuel burning in manufacturing and
distribution

, 2
Microbes proliferate if reused or sit under sun

Drinking water treatment steps [ Ans: ] 1. Coagulation

2. Flocculation (sedimentation)

3. Filtration

4. Disinfection

1. Coagulation [ Ans: ] Formation of floc particles

- By chemical addition to destabilize suspended particles

--- Aluminum sulfate (ALUM) and ferric chloride

- Rapid mixing

2. Flocculation (sedimentation) [ Ans: ] Gentle mixing to
promote particle collisions for floc formation and growth

- Use of coagulants

- Slow mixing

- Preparation for sedimentation

Sedimentation

- Gravity for settling floc particles

- Removal of suspended solids

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