What is the primary advantage of Ozone compared to traditional disinfectants?

Prepare for the CWEA Advanced Water Treatment Test. Revise with flashcards and multiple choice questions, each question includes hints and explanations. Get ready for your exam success!

The primary advantage of ozone as a disinfectant compared to traditional disinfectants lies in its ability to not form traditional disinfection by-products. Ozone is an oxidative agent that decomposes back into oxygen after its disinfection process, which means it does not leave behind residual compounds that can pose health risks or environmental concerns associated with many chlorine-based disinfectants.

In contrast, traditional disinfectants, particularly chlorine, can react with natural organic matter present in water to form disinfection by-products like trihalomethanes (THMs) and haloacetic acids (HAAs), which are regulated due to their potential carcinogenic effects. The absence of such harmful by-products makes ozone a safer alternative, particularly in drinking water applications where public health is a priority.

Additionally, ozone operates as a broad-spectrum disinfectant, which can effectively inactivate a wide range of pathogens, including bacteria, viruses, and protozoa, enhancing its efficacy in water treatment. Thus, opting for ozone can significantly improve water quality without the trade-offs associated with harmful residues often linked to conventional chemical disinfectants.

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