DMF (Dual Media Filter)
A dual media filter is a type of water filtration system that uses two different layers of filtering media, typically anthracite and sand, to remove impurities from water. The anthracite layer traps larger particles, odour and colour while the sand layer captures finer particles, resulting in more efficient and thorough filtration.
Process Description:
A dual media filter operates by passing water through two distinct layers of filtration media: anthracite and sand. Water first flows through the anthracite layer, which captures larger suspended particles due to its coarse texture. It also helps remove colour and odour from water. Subsequently, the water passes through the sand layer, which traps finer particles, ensuring a thorough removal of impurities. The dual media filter enhances filtration efficiency and longevity compared to single media filters, as the larger particles are filtered out before reaching the finer sand layer, reducing clogging and maintaining consistent flow rates. Regular backwashing is required to clean the media and maintain optimal filter performance.