Water purifier filter type household water purifier filter which is good

Water purifier filter type household water purifier filter which is good

First, the type of water purifier filter

1, activated carbon filter

There are two major categories of activated carbon filter products:

Compressed activated carbon filter, bulk activated carbon filter.

1. The compressed activated carbon filter core adopts high-adsorption coal-based activated carbon and coconut shell activated carbon as filter materials, and is sintered and formed by food-grade binder sintering. The compressed activated carbon filter is wrapped with a layer of non-woven fabric inside and outside, ensuring that the carbon core itself does not drop the carbon powder. The carbon core is filled with a soft nitrile rubber gasket at both ends to insert the carbon core into the filter cartridge. Has a good seal.

2. The bulk activated carbon filter element is filled into the special plastic casing, and the end cover is welded to the two end faces of the casing by welding equipment, and the two ends of the casing are respectively put into the non-woven fabric for filtering. Filter to ensure that the carbon core does not drop toner and black water when in use. According to the customer's needs, the housing end cover can be made into different types of connectors. The interface modes are: flat pressure type and pipeline type.

2, PP filter

The PP filter element is also called PP melt-blown filter element. The melt-blown filter core is made of polypropylene microfiber hot-melt entanglement. The fiber randomly forms a three-dimensional microporous structure in space, and the pore size of the pore is distributed along the flow direction of the filtrate, and the surface and deep layer are collected. It is integrated into the fine filter to remove impurities of different particle sizes. The filter has a precision range of 0.5-100μm, and its flux is 1.5 times or more of the same precision peak filter. It can be equipped with different types of end cap joints to meet the needs of various engineering installations.

3, ceramic filter

The ceramic filter element is a new type of environmental protection filter core, which is prepared by using diatomite mud as raw material and using special technology molding method. Its average pore size is only 0.1μm, which is the filter element with the highest filtration precision.

The purpose of ceramic filter cores is:

The liquid medicine in the water, the plating solution, and the solid particles in the tap water are removed, and the carbon filter core removes organic impurities in the liquid. When filtering, the solution is pushed by the pump and flows through the filter cartridge and the filter element. The particles are separated in the filter element, and the filtered solution is returned to the plating tank or the solution tank through the core tube. It is true that the filter paper can also filter out particles, but the effect is different from the filter element. The filter paper is separated by particles on the surface, and the filter residue of the filter element is hidden between the yarns, and its surface area is much larger than that of the filter paper.

4, resin filter

The resin is a porous, insoluble exchange material. The resin filter in the water softener contains millions of fine resin balls (beads), all of which contain many negative charge exchange sites for absorbing positive ions. When the resin is in a new state, these charge exchange sites are occupied by positively charged sodium ions. When calcium and magnesium pass through the resin sump, they come into contact with the resin beads, replacing sodium ions from the exchange sites. The resin preferentially binds to a strongly charged cation, and the calcium and magnesium ions have a stronger charge than the sodium ion. Instead of sodium cations and then down through the resin "bed, flow out of the water softener, so the soft water machine sent out "soft" water. Finally, all resin exchange sites are occupied by calcium and magnesium, and can no longer work.

It is commonly used as a water softener filter and can pass a resin regenerant (soft water salt) after filtration. Commonly used time regeneration and flow regeneration; currently the most advanced in the world is Germany Enmet NS series water softener, using time / flow dual program control technology, effectively reducing water consumption and resin regenerant consumption, environmental protection and energy saving.

5, titanium rod filter

Titanium rod filter has corrosion resistance, high temperature resistance, high strength, easy to ensure filtration precision, easy to regenerate, etc. Titanium filter element is formed by titanium powder forming and high temperature sintering, so the surface particles are not easy to fall off; the use temperature in air Up to 500 ~ 600 ° C; suitable for filtration of various corrosive media, such as: hydrochloric acid, sulfuric acid, hydroxide, seawater, aqua regia and filtration of chloride solutions such as iron, copper, sodium. It has excellent mechanical properties, can be machined by cutting, welding, etc., with high compressive strength and internal pressure breaking strength up to 2MPa; its filtration precision is easy to guarantee, even if it is working under high temperature and high pressure, the aperture will not be deformed. The porosity is up to 35 to 45%, the pore size distribution is uniform, the amount of dirt is large, and the regeneration method is simple, and can be reused after regeneration.

6, KDF filter material

KDF is a high-purity copper alloy, which can perfectly remove heavy metals and acid ions in water, improve the activation degree of water, and is more conducive to human body's absorption of water, protect human health and promote human metabolism. It is this material made of KDF filter. This filter element is the best configuration for use in water purifiers.

7, nanofiltration membrane

Nanofiltration membranes are a functional semipermeable membrane that allows the passage of solvent molecules or certain low molecular weight solutes or low-cost ions. It is a special and promising type of separation membrane. It is named because the size of the retentate is about nanometer. The molecular weight of the intercepted organic matter is about 150-500, and the ability to retain the soluble salt is 2- Between 98%, the desalting of the monovalent anion salt solution is lower than that of the high-priced anion salt solution. It is used to remove organic matter and chromaticity of surface water, remove the hardness of groundwater, partially remove dissolved salts, concentrate juice, and separate useful substances in medicines.

8, hollow fiber ultrafiltration membrane

The hollow fiber ultrafiltration membrane is a type of ultrafiltration membrane. It is the most mature and advanced technology in ultrafiltration technology. The outer diameter of the hollow fiber is 0.5-2.0 mm, and the inner diameter is 0.3-1.4 mm. The hollow fiber tube wall is covered with micropores, and the pore diameter is expressed by the molecular weight of the retentate substance, and the molecular weight cut off can be several thousand to several hundreds of thousands. The raw water is pressurized and flows outside or inside the hollow fiber, and constitutes an external pressure type and an internal pressure type, respectively. Ultrafiltration is a dynamic filtration process, and the trapped material can be removed with concentration, so as not to block the surface of the membrane, and can be continuously operated for a long time. Ultrafiltration membrane is one of the earliest developed polymer separation membranes.

9, RO reverse osmosis membrane

RO reverse osmosis membrane, RO is the abbreviation of English Reverse Osmosis membrane. Chinese means: reverse osmosis (reverse osmosis). Generally, the flow of water is from low concentration to high concentration. Once the water is pressurized, it will flow from high concentration to low concentration. The so-called reverse osmosis principle: Since the pore size of the RO membrane is one-fifth of a millimeter (0.0001 micrometers) of the hair filament, it is generally invisible to the naked eye, and the bacteria and virus are 5,000 times larger. Therefore, only water molecules and parts Mineral ions beneficial to the human body can pass, other impurities and heavy metals are discharged from the waste water pipe, all seawater desalination processes, as well as astronaut wastewater recycling treatment, this method is used, so RO membrane is also called high-tech artificial kidney in vitro.

Second, the water filter what filter is good

What kind of filter is good for water purifier - activated carbon filter

Replacement cycle: one year change; use occasions: beverage, drinking water treatment, cosmetics, biochemical water treatment, etc.

There are two main types of activated carbon filter: compressed activated carbon filter and bulk activated carbon filter. It is mainly a method in which the activated carbon granules required for filtration are packed into a special plastic casing, and the end caps are welded to both ends of the casing by a welding device, and then filtered using a non-woven filter. The filter element is a filter element for coarse filtration of water, which can remove odor and organic chemicals in water by adsorption of activated carbon.

What kind of filter is good for water purifier - PP filter

Replacement cycle: March to June / change; use occasions: household drinking water purification, industrial pure water, beverage and wine filtration, water purifiers and other ancillary equipment

PP melt-blown filter element is a tubular filter element made of non-toxic and odorless polypropylene particles, which is heated, melted, spun, drawn and received. It has high filtration precision, large flow, small volume, high pressure resistance, corrosion resistance, etc. Features. It can be configured with different types of end cap connectors to meet the needs of various engineering installations.

What kind of filter is good for water purifier - ceramic filter

Replacement cycle: June-December/change; use occasions: mineral water purification, sterilization and medicine, electronics industry, sterile water, disinfection water, preparation of high-purity water, chemical industry, etc., can be repeatedly used.

The ceramic filter element is a new type of environmental protection filter core, which is prepared by using diatomite mud as raw material and using special technology. Its average pore diameter is only 0.1μm, it has the effect of inhibiting bacteria and sterilization, and can retain trace elements in water. It is an economical and environmentally friendly water filtration material.

What kind of filter is good for water purifier - UF hollow ultrafiltration filter

Replacement cycle: 3 years and above; use occasions: household water.

Hollow fiber ultrafiltration membranes are one type of ultrafiltration membranes, and ultrafiltration processes are generally understood to be a screening process associated with membrane pore size. The pressure difference between the two sides of the membrane is used as the driving force, and the ultrafiltration membrane is used as the filter medium. Under a certain pressure, when water flows through the surface of the membrane, only water and a small molecular substance having a smaller pore diameter than the membrane are allowed to pass, thereby purifying the solution. , separation, and concentration purposes. In the domestic water treatment, it can remove the fine impurities, colloids, heavy metals, soluble solids, bacteria, viruses and other harmful substances in the filtered water, and retain trace mineral elements in the water. With the active carbon water treatment technology, it is an ideal domestic water treatment method.

What kind of filter is good for water purifier - RO reverse osmosis membrane filter

Replacement cycle: 3 years or so; use occasion: kitchen or bathroom

The RO reverse osmosis filter has a super-filter effect. Since the pore size of the RO membrane is one-fifth of a millimeter (0.0001 micron) of the hair filament, it is generally invisible to the naked eye, and bacteria and viruses are 5,000 times larger. Therefore, it can Thoroughly remove bacteria, viruses, heavy metals, inorganic salts, pesticides, trihalomethanes and organic chemical carcinogens from water. Only water molecules and some mineral ions that are beneficial to the human body can pass. It is the most beneficial human health filter, known as the high-tech artificial kidney in vitro.

What kind of filter is good for the water purifier, Xiaobian can't give an absolute answer, but from the above analysis, the RO reverse osmosis membrane filter is undoubtedly the best in all the filter elements. The degree of water pollution in each region is different from the needs of users. People can choose the filter according to their own needs.