Question

How safe is the water at the end of the treatment? How is it tested?

Answer 1

Answer:

Water is pure (100%) at the end of the treatment.

Explanation:

Water treatment improves quality of water for making it drinking and other special uses. After the treatment, it is supplied to industrial, river flow, drinking, and other uses. Common methods for water treatment are -

1) Boiling

2) Use of iodine

3) Use of chlorine

4) Use of water filter

5) Use ultraviolet light.

There are few steps of drinking treatment which are-

1) Collection

2) screening and straining

3) chemical addiction

4) Coagulation and Flocculation

5) Sedimentation

6) Filtration

7) Disinfection

8) Storage

9) Distribution.

Answer 2

Answer:  

Water is generally considered to be safe after treatment. It should be tested for purity and safety by country-specific certified laboratories.  

Explanation:  

Water treatment helps in removing waste and harmful substances from water and to make it suitable for reuse. The clean water that is in circulation is a result of water treatment and filtration.

However, at the end of treatment, water should be safe, and it must still be tested for microorganisms, nitrates, pH balance, and others. The water safety tests are varied and depend from country to country.