Water Treatment Part 1

Question 1

Only PHYSICAL phenomena are used. Example:

Screening, Sedimentation, and filtration

Answer 1

Physical Treatment

Question 2

Using some CHEMICAL reaction or reactions. Example: Coagulation, Chlorination, Ozonation

Answer 2

Chemical Treatment

Question 3

Use microorganisms in the biochemical decomposition of wastewaters

Answer 3

Biological Treatment

Question 4

It is a CHEMICAL water treatment technique that involves altering the electrostatic charges of particles suspended in water to remove solids

Answer 4

Coagulation

Question 5

Relates to particle size change

Answer 5

Colloidal Stability

Question 6

Two commonly used metallic coagulants

Answer 6

Aluminum Sulfate and Iron

Question 7

Three basic types of Coagulant aids

Answer 7

Activated Silica, Clay, Polymers

Question 8

It is a method that eliminates ions that makes the water HARD (opposite of hard)

Answer 8

Softening

Question 9

It is a critical process of properly distributing chemicals through the volume that affects the overall quality of the product

Answer 9

Mixing

Question 10

It is a water treatment process where solids form large flocs that will be removed from the water.

hint: flocs is a gathering of solid particles and turn into clumpy solids

Answer 10

Flocculation

Question 10

It is a water treatment process where solids form large flocs that will be removed from the water.

hint: flocs is a gathering of solid particles and turn into clumpy solids

Answer 10

Flocculation

Question 11

Types of Flocculation

Answer 11

Polymer forms and polymer charge