What is the first stage of purification in the ROWPU process?

The first stage of purification in the Reverse Osmosis Water Purification Unit (ROWPU) process involves multimedia filtration. This process is crucial for removing larger particulates and sediment from the water before it undergoes further purification stages. Multimedia filters typically consist of different layers of filtering media such as gravel, sand, and anthracite, which effectively trap particles of various sizes.

This initial filtration ensures that any larger debris is eliminated, allowing the water to flow more smoothly through subsequent systems and protecting those systems from clogging and potential damage. Following this stage, the water then progresses to more advanced treatments, such as chemical disinfection and reverse osmosis, which address smaller impurities and pathogens.

This staged approach enhances the overall efficiency and effectiveness of the purification system by reducing the load on later filtration processes and ensuring a higher quality of the final product water.