Sign up for FREE

Solar Disinfection

Last updated over 5 years ago

10 questions

2

2

2

3

3

4

2

8

1

1

Question 1

1.

Identify the decade that Solar Disinfection, or SODIS, was developed.

1970s

1990s

2000s

1980s

Question 2

2.

SODIS was created as a household water treatment option to prevent _____ in developing countries.

typhoid fever

diarrhea

hepatitis A

cholera

Question 3

3.

What type of container is recommended for SODIS?

metal bottle

glass bottle

plastic bottle

aluminum bottle

Question 4

4.

Identify the three types of germs that are inactivated by SODIS.

Question 5

5.

Explain "turbidity" in relation to water (Be sure to include what water looks like with high turbidity and low turbidity).

Question 6

6.

Differentiate between the time it takes to disinfect water on a sunny day versus a cloudy day.

Question 7

7.

In what areas does the Center for Disease Control (CDC) say it is appropriate to use SODIS?

Where there is an availabiliy of plastic bottles.

Where there is a presence of community motivation.

Where there is correct and consistent training on usage.

ALL of the above.

Question 8

8.

Match each characteristic with the correct SODIS outcome.

Simplicity of design.
No cost if using recycled plastic bottles.
Must pretreat water of high turbidity.

Question 9

9.

It is estimated that over 100 million people in 137 developing countries uses SODIS as a daily drinking water treatment.

True

False

Question 10

10.

SODIS is virtually a zero-cost technology.

True

False

Limited volume of water can be treated at a time.

Minimal change in taste to the water.

Length of time required to treat water.

Proven to reduce virsus, bacteria, and protozoa in water.

Must have a large supply of suitable plastic bottles.

Benefits of SODIS

Drawbacks of SODIS