What is the 4th and final stage of treatment that completes the ROWPU water treatment process?

The fourth and final stage of treatment in the Reverse Osmosis Water Purification Unit (ROWPU) process is chemical disinfection. This stage is crucial because it involves adding chemical agents, such as chlorine or iodine, to the treated water in order to eliminate any remaining microorganisms that might have survived earlier stages of purification. This step ensures that the water is safe for consumption and meets health and safety standards.

Following the processes of multimedia filtration, bag filtration, and reverse osmosis, which are all designed to remove particles, contaminants, and salts from the water, chemical disinfection acts as a final safeguard. It addresses any potential microbial contamination that can occur after the initial purification stages. Therefore, completing this process with chemical disinfection is essential for providing safe drinking water.