At NINGBO INNO PHARMCHEM CO.,LTD., we champion advanced water treatment methodologies, and multi-media filtration is a prime example of optimizing contaminant removal through synergistic material application. By strategically layering specialized filter media such as anthracite, silica sand, and manganese sand, water treatment facilities can achieve unparalleled levels of purity and efficiency.

Multi-media filtration beds typically consist of a layer of coarse anthracite at the top, followed by a layer of finer silica sand, and often a bottom layer of even finer garnet or support material. In specialized applications, manganese sand is incorporated for its unique oxidative properties. The anthracite layer, with its larger particle size and lower density, effectively captures larger suspended solids and pre-filters the water, reducing the load on subsequent layers. This prevents premature clogging of the finer media below.

Beneath the anthracite, the silica sand layer, with its smaller effective size and higher uniformity coefficient, provides a denser filtration medium capable of trapping smaller particulate matter. This combination ensures a more thorough removal of turbidity and suspended solids throughout the entire depth of the filter bed. The graded nature of the media allows for a more even distribution of solids, maximizing the filter's capacity and extending its service run times between backwashes.

When manganese sand is introduced into this system, it brings an additional dimension of purification. Its ability to oxidize dissolved iron and manganese makes it invaluable for treating groundwater with these specific contaminants. The layered approach ensures that the water is first mechanically filtered by anthracite and silica, and then chemically treated by the manganese sand, if necessary. This integrated approach not only enhances the removal of a broader range of contaminants but also prolongs the lifespan and efficiency of the entire filtration system. NINGBO INNO PHARMCHEM CO.,LTD. provides all these essential filter media, enabling clients to design and implement highly effective multi-media filtration solutions for a variety of water quality challenges.