Chlorination- Disinfection

Question 1

When taking bacteria sample you should neutralize the chlorine with

Answer 1

Sodium thiosulfate

Question 2

Potassium and sodium permanganate

Answer 2

Can color water pink

Question 3

Chloramines àre

Answer 3

Compounds formed by the reaction of hypochlorous acid with ammonia

Question 4

The process of adding chlorine to water until the chlorine demand is satisfied

Answer 4

Breakpoint chlorination

3 stop when it goes by down before steady upclimb

Question 5

We’ll pump cant reach highest level but flow looks good, what is the problem

Answer 5

scaling

Question 6

Chlorine leaks is the

Answer 6

Formation of a white cloud of vapor

Question 7

Chlorine relations

Answer 7

Cl dose= cl residual + cl demand

Question 8

CL line are what color

Answer 8

Yellow

Question 9

Use what when start up chlorinator

Answer 9

New lead gasket

Question 10

(3) types of disinfection agents

Answer 10

1. Heat energy
2. Radiant energy
3. Chemical agents

Question 11

(5) disinfection by chemical agents

Answer 11

1. Chlorine and monochoramine
2. Potassium permanganate
3. Ozone
4. Chlorine dioxide
5. Hydrogen peroxide

Question 12

When chlorine is added to water it ionizes producing

Answer 12

Hypochlorous acid (HOCI) and the hypochlorite ion (OCl-)

Question 13

Gas chlorine is available

Answer 13

100% as chlorine