Water treatment is customized for different water sources based on the quality of the water and the intended use. The treatment process can include several stages such as pre-treatment by settling or through using coarse media, filtration followed by chlorination. The most common treatment process train for surface water supplies—conventional treatment—consists of sedimentation, filtration, and disinfection. The safe drinking water requires a holistic approach that considers the source of water, treatment processes, and the storage system.
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