Why must turbidity be limited in water treatment?

Turbidity must be limited in water treatment primarily because it shelters and nourishes bacteria. When water contains suspended particles, these particles can provide a habitat and source of nutrients for microbial growth, including harmful bacteria. This can lead to potential health risks and make the treatment processes less effective, as the presence of bacteria can lead to the formation of biofilms, which may resist disinfection efforts.

Although turbidity can cause aesthetic issues, serve as an indicator of possible chemical contaminants, or have an indirect connection to pH levels, the most critical concern from a health and treatment perspective is its role in fostering an environment suitable for bacterial proliferation. Reducing turbidity is essential to ensure the safety and quality of drinking water, as well as to improve the overall efficacy of water treatment processes.