Multimedia filtration is a water treatment process that uses multiple layers of filtration media—such as gravel, sand, and anthracite—to remove particles from water. Each layer is strategically selected based on size and density, allowing water to pass through in stages, removing larger contaminants first and finer particles later.
This method is highly effective for reducing turbidity and suspended solids, especially in applications like pre-treatment for reverse osmosis systems, industrial process water, and residential filtration systems. The varied media depth ensures more contact time with the contaminants, leading to superior filtration compared to single-media filters.
The water enters from the top of the filter tank and flows downward through the different media layers. As it moves through each layer, specific types of contaminants are trapped, which results in cleaner, clearer water exiting the system.
One of the key advantages of multimedia filtration is its longer filter run time and higher dirt-holding capacity. This means fewer backwashing cycles are needed, making it a more efficient and low-maintenance filtration method for many commercial and industrial needs.