Introduce several water treatment filter elements

1. Activated carbon water treatment filter element Activated carbon has strong adsorption to many substances, and is mainly used to remove the color, odor and residual chlorine in water, which can change the taste of water. Granular filter element: The basic composition is granular activated carbon filled in a specific support. The composition is simple and the cost is low, but it is easy to damage and leak carbon, and the service life and effect are unstable. It is often used as a diode filter for various household water purification equipment. Compressed activated carbon filter element: The filtering capacity is stronger than that of granular activated carbon. The service life is also longer, and it is often used as a three-pole filter for various household water purification equipment. Post-installation antibacterial activated carbon filter element: a trace amount of silver ions is loaded on the activated carbon, and it is often used as the last filter element to further remove the impurities that were not removed or newly introduced in the previous steps of filtration, and at the same time kill and inhibit the regeneration of bacteria in the water to prevent purification. The secondary pollution of water makes drinking water safer. 2. Ultrafiltration sewage treatment filter element (UF) is made of polypropylene hollow fiber, the membrane is hollow capillary, and the membrane wall is densely covered with micropores with a pore size of 0.1--0.3 microns, which can filter all bacteria and retain extremely small water in water. The filtered water can be drunk raw. It can be used repeatedly for washing and recycling. 3. Reverse osmosis sewage treatment filter membrane (RO) The most advanced at present: RO reverse osmosis. The reverse osmosis membrane is made of cellulose acetate or aromatic polyamide, etc., and its pore size can reach 0.0001 microns. Through a high-pressure water pump, the tap water is pressurized, so that the water molecules penetrate from the high concentration of the membrane to the low concentration, while the inorganic ions It cannot pass through with bacteria, fungi, virions, etc., and is discharged with wastewater, thereby removing bacteria, viruses, heavy metals, pesticides and other harmful substances in the water, so as to achieve the purpose of direct drinking. Because the pore size of the RO filter element reverse osmosis membrane is very small, it is easy to be blocked by impurities and lose its function. In order to prolong the service life of the RO membrane, it is necessary to perform pretreatment such as filtration with pp cotton and activated carbon. The reverse osmosis filter element is generally placed in the first place. Level 4 use. 4. Other water treatment filter elements Ion exchange resin filter elements: can be divided into cation resin and anion resin, which can ion exchange with cations such as calcium and magnesium in water and anions such as sulfate to achieve softening and deionization of hard water, but it Impurities such as bacteria and viruses cannot be filtered out. Heavy metal filter element: such as KDF filter element, it is a high-purity copper and zinc alloy filter material, which can effectively remove heavy metal ions, and chemical pollutants such as chlorine and organic matter; inhibit the breeding of bacteria in water and prevent secondary pollution of water bodies , while increasing the content of the mineral zinc that is beneficial to the human body.
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