The most problematic yet common form of tertiary treatment of water is:
A)chlorine
B)UV light
C)ozone
D)X-rays

Question

Quizplus · Accepted Answer

Chlorine is the most problematic form of tertiary treatment of water as it can react with organic compounds and produce disinfection byproducts (DBPs) that are harmful for human consumption. DBPs such as trihalomethanes (THMs) and haloacetic acids (HAAs) are carcinogenic and have been linked to bladder cancer, miscarriages, and birth defects. However, chlorine is still widely used for tertiary treatment due to its effectiveness in killing bacteria and viruses in the water. Other options such as UV light and ozone are preferred as they do not have the same DBP concerns. X-rays are not commonly used in tertiary treatment of water.

The Most Problematic Yet Common Form of Tertiary Treatment of Water