A multimedia filter is a process that uses one or several filtering media to pass water with high turbidity through a certain thickness of granular or non granular materials under a certain pressure, effectively removing suspended impurities and clarifying water. Commonly used filter media include quartz sand, anthracite, manganese sand, etc., mainly used for water treatment turbidity removal, pre treatment of softened water and pure water, etc. The effluent turbidity can reach below 3 degrees.
1、 Effect
Remove impurities such as mud, sand, suspended solids, colloids, and algae from water, reducing mechanical damage and pollution to reverse osmosis membrane components.
2、 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 types of operation modes: fully automatic and manual, which are easy to operate and maintain. They are widely used in pre-treatment devices for 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 the relative density and particle size of each medium should have certain differences. The relative density of anthracite used in a dual filter material filter composed of anthracite and quartz sand is 1.4; 1.6, particle size 0.8-1.8mm, relative density of quartz sand 2.6-2.65, particle size 0.5-1.2mm.