Chapter 11 - Disinfection

Question 1

The water treatment process that kills disease-causing organisms in water, usually by the addition of chlorine.

Answer 1

Disinfection

Question 2

A disease caused by a waterborne organism or toxic substance.

Answer 2

Waterborne Disease

Question 3

A container that holds 150 lbs of chlorine and has a total filled weight of 250-285 lb.

Answer 3

Chlorine Cylinder

Question 4

A reusable, welded tank that holds 2,000 lbs of chlorine.
Theses containers weigh about 3,700 lbs when full and are generally 30 in. in diameter and 80 in. long.

Answer 4

Ton Container

Question 5

Any device that is used to add chlorine to water.

Answer 5

Chlorinator

Question 6

The portion of the chlorination system that feeds the chlorine solution into a pipe under pressure.

Answer 6

Injector

Question 7

A section of perforated pipe or porous plates used to inject gas, such as carbon dioxide or air, under pressure into water.

Answer 7

Diffuser

Question 8

A heating device used to convert liquid chlorine to chlorine gas.

Answer 8

Chlorine Evaporator

Question 9

Chlorination using solutions of calcium hypochlorite or sodium hypochlorite.

Answer 9

Hypochlorination