What is the maximum acceptable turbidity of water treated through slow sand filtration?

The maximum acceptable turbidity of water treated through slow sand filtration is indeed 25 NTU (Nephelometric Turbidity Units). Slow sand filtration is a highly effective water purification technique that relies on the natural processes of biological and physical filtration. The turbidity of the water affects the efficacy of the filtration process and the overall quality of the treated water.

Maintaining a turbidity level of 25 NTU or below ensures that the filtration process can effectively remove pathogens and particulate matter, which is crucial for producing safe drinking water. Higher turbidity levels can impede the filtration process, reduce the effectiveness of microbial treatment, and potentially lead to health risks associated with contaminated water.

By keeping the turbidity within acceptable limits, water treatment facilities can ensure that slow sand filters function optimally, providing clear, clean, and safe drinking water.