Sediment media are used in in-line filters and filtering columns; they retain mechanical contaminants found in the water system. Filters with the sediment media are used as an independent filtration process or as one of its stages. They are recommended before other water treatment systems.
A natural zeolite medium in a form of aluminium silicate granules for removing sediment contaminants. Formed as a result of volcanic eruption, it is characterised by the highest efficiency in filtration of mechanical particles. Thanks to its high porosity, the medium captures sediments with the entire surface of the granules. It is insoluble and resistant to abrasion, so it does not require periodic refilling. The medium is used primarily for water clarification: it eliminates mechanical contaminants of 3-5 microns, additionally removing clay and colloidal suspensions. Compared to a traditional quartz medium, it removes up to three times the amount of sediment.
Quartz filtering media for removing sediment contaminants. They effectively remove mechanical particles, suspensions and sediments. They are the most popular medium used in mechanical filtration of surface and underground water. The medium is characterised by high durability and total passivity towards treated water (it does not dissolve over time). Mechanical contaminants are retained on crystalline silica grains and removed during backwash. The quartz filtering media do not require chemicals for regeneration.