Do you know the design principle of multimedia filters?

Multi-media filter uses one or several filter media to pass water with high turbidity through a certain thickness of granular or non-granular material under a certain pressure, thereby effectively removing suspended impurities and clarifying the water. Commonly used filter materials are quartz sand, anthracite, manganese sand, etc., which are mainly used for water treatment to remove turbidity, soften water, pre-treatment of pure water, etc. The turbidity of the effluent can reach below 3 degrees.

The meaning of filtration, in the process of water treatment, filtration generally refers to the process of retaining suspended impurities in the water with a filter material layer such as quartz sand and anthracite, so that the water can be clarified. The porous material used for filtration is called filter material, and quartz sand is a common filter material. The filter material is granular, powdery and fibrous. Commonly used filter materials are quartz sand, anthracite, activated carbon, magnetite, garnet, ceramics, plastic balls, etc.

Multi-media filter (filter bed) is a medium filter that uses two or more media as the filter layer. In the industrial circulating water treatment system, it is used to remove impurities in sewage, adsorb oil, etc., so that the water quality meets the requirements of recycling. . The function of filtration is mainly to remove suspended or colloidal impurities in water, especially to effectively remove tiny particles and bacteria that cannot be removed by precipitation technology. It also has a certain degree of removal effect on BOD and COD.

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