The image illustrates a process flow diagram for a water treatment plant, labeled "Water Treatment Plant A". It outlines the stages of water purification from raw water to distribution. Initially, 'RAW WATER' passes through a 'Flash Mix' stage where rapid mixing of chemicals with the raw water occurs. Then it enters two parallel 'Flocculation Basins' where particles form larger clumps. Subsequently, water flows into two 'Sedimentation Basins' allowing the clumps to settle. Following sedimentation, the water goes through 'Polishing Basins' for further refinement.
The next phase involves filtration, where the water passes through four 'Filters' to remove remaining particulates. The clean water then moves to the 'CLEARWELL' for storage. From the clear well, water is pumped into the distribution system, as indicated by the 'TO DISTRIBUTION SYSTEM' arrow. There is also a flow directed towards a 'Sludge Pond', where the waste collected from the water treatment process is deposited. The diagram employs blue and green lines to denote water flow and sludge transfer, respectively, ensuring a clear visual differentiation of the processes.
