Exposing water to intense UV will kill pathogenic bacteria and viruses; this is an example of which disinfect method?

Prepare for the Bioenvironmental Engineering Block 9 Exam with our interactive quiz. Utilize multiple choice questions, hints, and explanations to master the material and excel in your test!

Multiple Choice

Exposing water to intense UV will kill pathogenic bacteria and viruses; this is an example of which disinfect method?

Explanation:
The main idea here is that UV exposure is a disinfection method that relies on radiation. Ultraviolet light, especially UV-C, penetrates microbial cells and damages their DNA or RNA, producing changes that prevent replication. Because the microorganisms can no longer reproduce, they are effectively inactivated, which is why water treated with UV is considered disinfected. This is a physical form of disinfection and does not introduce chemicals into the water, unlike bleach or ozone, and it is not based on heating. It’s important to note UV works best with clear water, since turbidity can block the light, and it doesn’t leave a residual disinfectant in the water.

The main idea here is that UV exposure is a disinfection method that relies on radiation. Ultraviolet light, especially UV-C, penetrates microbial cells and damages their DNA or RNA, producing changes that prevent replication. Because the microorganisms can no longer reproduce, they are effectively inactivated, which is why water treated with UV is considered disinfected. This is a physical form of disinfection and does not introduce chemicals into the water, unlike bleach or ozone, and it is not based on heating. It’s important to note UV works best with clear water, since turbidity can block the light, and it doesn’t leave a residual disinfectant in the water.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy