(1) Sand and gravel filter equipment (multi-media filtration equipment) Sand and gravel filter (multi-media filtration equipment) is a mechanical filtration equipment with layered anthracite, sand, finely crushed garnet or other materials as the bed, and its principle In order to filter particles of different particle sizes in water by depth, larger particles are removed on the top layer, and smaller particles are removed deeper in the filter media, so that the water quality reaches the standard after coarse filtration and reduces the SDI of water ( The sludge density index) value meets the water quality requirements for deep purification.
(2) Activated carbon filter Activated carbon has adsorption and turbidity removal. The main structure and layout of activated carbon filter are similar to sand filter. Therefore, activated carbon adsorption is also called activated carbon filtration. Activated carbon filtration is mainly used for organic impurities in water and molecular colloidal fine particles in water. It can also be used for dechlorination.
(3) Sand core rod filter Sand core rod filter is also known as sand filter rod filter, and has been shaped products in water treatment equipment. It is mainly suitable for water treatment with less water and only organic matter, bacteria and other impurities.
(4) Microporous filter Microporous filter is a new type of membrane separation technology. It can filter out particles and bacteria above 0.01μm in filtrate and gas. It is characterized by high capture capacity, large filtration area, long service life, high filtration accuracy, low resistance, large mechanical strength, no peeling phenomenon, strong acid and alkali resistance, and convenient use. This filter can filter out most of the particles, so it is widely used in fine filtration and sterilization processes.