The flowchart delineates the comprehensive stages involved in the treatment and purification of water prior to its dissemination as safe drinking water.
This process encompasses eight sequential stages, effectively transforming raw water into potable water through a series of systematic procedures.
Initially, raw water is sourced and subjected to the pumping stage, where it is transported through extensive piping systems. Subsequently, the water undergoes screening to eliminate larger debris and particulate matter, thereby assessing the nature and extent of impurities present. This is followed by the sedimentation phase, during which the screened water is allowed to rest in large basins, facilitating the gradual settling of suspended solids, which accumulate as sediment at the base. The combination of these three steps ensures that the majority of visible contaminants are significantly reduced.
The ensuing stage is filtration, wherein the water is systematically passed through filters composed of various media designed to remove finer particles and residual turbidity. Following filtration, disinfection is implemented, employing chemical agents such as chlorine or ultraviolet light to eradicate pathogenic microorganisms, ensuring microbiological safety. Finally, the purified water is stored in dedicated tanks before its distribution, where it is made available for public consumption, thus completing the comprehensive treatment process.