Multi medium filter

1．Product Name：Multi medium filter

2．Product Overview：Multi media filter (filter bed) is a medium filter that uses two or more media as the filter layer. In industrial circulating water treatment systems, it is used to remove impurities, adsorbed oil, etc. from wastewater, so that the water quality meets the requirements of recycling. The main function of filtration is to remove suspended or colloidal impurities in water, especially small particles and bacteria that cannot be removed by sedimentation technology. BOD5 and COD also have a certain degree of removal effect.

3．Product features：

(1) Porous media filters are widely used in water treatment processes and can be used alone, but most of them are used as pre filters for advanced water treatment (exchange resin, electrodialysis, reverse osmosis);

(2) Multi media filters are commonly used pre-treatment devices for deep water purification, which can be filled with different filter media according to process requirements;

(3) The material of the multimedia filter can be fiberglass, A3 steel anti-corrosion or rubber lined, and all stainless steel. There are two forms of operation: fully automatic and manual. Automatic control adopts automatic controllers imported from the United States and pneumatic and hydraulic valve control, which is easy to operate and maintain. It is widely used in pre-treatment devices of water treatment processes in various industries;

(4) The filtering material of a multimedia filter (including a dual filter material filter) should have sufficient chemical stability, and there should be certain differences in the relative density and particle size of each medium. The dual filter material filter composed of anthracite and quartz sand uses anthracite with a relative density of 1.4-1.6, particle size of 0.8-1.8mm, quartz sand with a relative density of 2.6-2.65, and particle size of 0.5-1.2mm; In addition to the above two types of filter media, a three-layer filter can also use heavy ores such as manganese sand and magnetite, with a relative density of 4.7-5.0 and a particle size of 0.5-4mm.

4．Applicable scope：

(1) Pre treatment of systems such as reverse osmosis, electrodialysis, ion exchangers, and ultrafiltration;

(2) Pre filtration treatment of raw water for power generation, chemical industry, papermaking, beverages, etc;

(3) Decolorization and removal of organic matter in chemical plant water supply;

(4) Pre treatment of domestic water;

(5) Industrial water treatment;

(6) Swimming pool water treatment;

(7) Circulating water side filtration system;

(8) Surface water and groundwater turbidity and color reduction;

(9) Wastewater treatment.