Water purifier and filter material knowledge

According to the materials and filtering methods used in the water purifier, it can be divided into adsorption type and filtering type; The filter type water purifier can be divided into conventional filtration and precision filtration according to the different pore size of the filter membrane and the purified water quality.

Classified by water quality: it can be divided into water purifiers for urban tap water, turbid tap water, high hardness water and limestone water.

Classified by purification grade: it can be divided into coarse filtration, activated carbon adsorption, ion exchange resin, hollow fiber and reverse osmosis membrane.

Classification according to purification level: it can be divided into first, second, third and fourth stage water filter and five pole reverse osmosis membrane water purifier.

Different types of household water purifiers have different water purification effects due to their different structures. The structures of household water purifiers generally include the above mentioned coarse filtration, activated carbon adsorption, ion exchange resin, central fiber and reverse osmosis membrane, and their water purification effects are different.

The water purifier is an ideal household water purification equipment, which is used to purify tap water, so that the water quality of polluted tap water and tap water that does not meet the standard of safe drinking water can be greatly improved after being treated by the water purifier. It can completely remove chlorine, trichloromethane, pesticides, bleach, organic substances and other harmful chemical toxins and heavy metals in the water, eliminate odor, and meet the national drinking water hygiene standards and the World Health Organization Domestic Water Recommendations. It can be directly consumed. So that you can enjoy pure and sweet water every day.

Classification of filter materials

1. Activated carbon Activated carbon has been found to be used for water treatment since the beginning of the 20th century. It is a carbon with porous structure, which is used to increase the surface area of activated carbon for adsorbing impurities. The physical properties of carbonized materials have a great relationship with the quality of its raw materials and treatment process. At present, coal, trees, coconut shells or palm are the main raw materials of carbon. The carbon sintered from coconut shell has good stability, pore distribution and surface area better than other types of activated carbon, which makes it perform better in water treatment.

Activated carbon is used to adsorb and replace chemical substances, organic pollution sources, discoloration, odor, etc. by surface porous tissue. Generally speaking, the smaller the volume of activated carbon is, the larger its total area will be, and the higher its grasping and adsorption capacity will be, but the higher its pressure loss will be, which must be noted when selecting activated carbon; The highest grade coconut shell activated carbon is used, and the particle size ranges from 6 * 12 (for large system) to 20 * 50 (for household filter element) after pickling and without pickling. It is suitable for various occasions such as drinking water treatment, beverage water treatment, aquarium pipe, family or factory use.

2. KDF alloy filter material KDF is made of copper zinc alloy. Its working mechanism is to remove edema heavy metals by electrochemical reaction. KDF mainly deals with heavy metal impurities and organic pollution sources in water. KDF is used at the front end of activated carbon, so that 95% of chlorine in water is removed by KDF before reaching the activated carbon; The activated carbon can effectively remove other impurities remaining in the water. Technically, it can effectively prolong the life of activated carbon by 15 times.

3. Ultrafiltration membrane technology [MICROPURE Micropurification] is a patent mixture, which includes an extremely fine formula of activated carbon. With water pressure, it uses water pressure to pre paint and spread PRECOAT (multi fold multiple filtration) between the layers of ultra-high density multi fold fiber with a large area, and the adsorption area is the size of 80 football fields.

They are 40 times larger than other brands of the same size. Even 1/20000 cm (0.5 μ m) impurities or microorganisms in the pores of the fiber layer are blocked by the pores, and the water in the pores must be pure, and the water quality is always perfect from the first drop to the last drop.

4. Quartz sand Quartz sand is a traditional filter material. It is mainly used on medium and large systems to remove edema suspended impurities; Sand filtration can remove many fine impurities in water after being used as coagulant. Since the unit weight of quartz sand is large, the filter must be backwashed frequently, and the backwashing flow must be large to effectively clean and maintain water permeability.

5. PP filter element PP filter element is mostly used to filter edema and suspended impurities. With micron as the standard of separation, the common way is to make the inner and outer layers of filter apertures of 1, 5, 10, and 20 microns with different densities, so that the filter element has greater capacity to absorb dirt. When selecting PP primary pollution filter element, different filter element aperture must be selected according to the application situation. The use of origami filter element is similar to that of PP decontamination filter element. The utility model uses a folding design to increase the filtering surface area. The origami filter element is made of paper and plastic; The origami filter element has the characteristics of repeatable cleaning.