How to choose a kitchen water purifier? How to choose a household kitchen water purifier?

Reverse osmosis water purifier is the use of reverse osmosis membrane technology, its working principle is to apply a certain pressure to the water, so that water molecules and ionic mineral elements can pass through the reverse osmosis membrane to isolate most of the inorganic salts dissolved in the water, as well as heavy metals and germs, etc., so as to achieve the separation of pure water and harmful water.

The ultrafiltration water purifier uses ultrafiltration membrane technology. Ultrafiltration is a sieving process driven by the pressure difference between the two sides of the membrane. With the ultrafiltration membrane as the filter medium, under a certain pressure, when the water flows through the surface of the membrane, many small micropores densely covered on the surface of the ultrafiltration membrane only allow water and small molecule substances to pass through and become permeable liquid, and the substances larger than the micropores on the surface of the membrane will be intercepted and become concentrated, so as to achieve the purpose of purification and separation of raw water.

1 Advantages and disadvantages of reverse osmosis water purifiers.

Advantages: The reverse osmosis water purifier can remove all kinds of harmful impurities in the water, the taste of the water is better, the hardness of the water can be effectively reduced, and the container after boiling water does not produce scale.

Disadvantages: The reverse osmosis water purifier needs to use a water pump, which needs to be energized, and there is wastewater, and the ** will be higher than that of ultrafiltration water purification.

2 Advantages and disadvantages of ultrafiltration water purifiers.

Advantages: Ultrafiltration water purifiers usually do not need pumps, no wastewater, and do not consume electricity, and generally use the normal water pressure of municipal tap water. It can retain minerals and trace elements in water.

Disadvantages: The effect of ultrafiltration water purifier on removing chemical pollutants and scale in water is not as strong as that of water purifier, and the taste is average.

Both water purifiers have their own advantages and disadvantages, and they are not as strong as the one that is absolutely strong. The use of water purifiers is mainly determined by the local water quality. For water sources with good water quality, such as municipal tap water, ultrafiltration water purifiers can meet the needs of daily life.

For industrial pollution, reverse osmosis water purifiers can be used in areas where water quality is difficult to guarantee.

For the health of your family, choosing the right water purifier is an effective measure to ensure the safety of drinking water.

Should you choose reverse osmosis or ultrafiltration when choosing a water purifier? Consumers can choose water purification products that suit them as long as they refer to the three points of **, water consumption and filtration effect when purchasing.

Ultrafiltration machine. <>

Water purifier.

I contribute three rules for choosing water purifiers:

The first ** rule: water quality is king. In areas with good water quality, it is not necessary to choose a reverse osmosis machine. Ultrafiltration micropores are smaller than microns, which can filter out bacteria, rust, colloids and other harmful substances in water, and if there is no heavy metal pollution, it is basically enough.

Rule 2: Take into account safety and health. Based on the fear of industrial pollution, in the past, we used a large number of reverse osmosis water purifiers, but the reverse osmosis machine only allows water to pass through, and other substances can not be penetrated and are trapped on the surface of the membrane, such a filtration mechanism filters out all impurities, but also filters the minerals and trace elements in the water that are beneficial to the human body, and there is a greater health risk to teenagers, maternal and infant groups.

Therefore, the Ministry of Education's "Technical Requirements and Specifications for Membrane Treatment Drinking Water Equipment in Primary and Secondary Schools" stipulates that reverse osmosis technology can only be used in areas with a high risk of raw water pollution or when the school infirmary is equipped with a pure water device. Considering the balance between safety and health, nanofiltration + membrane chromatography water purification technology is worth paying attention to, its principle is a new technology of selective filtration, like a magnet to selectively adsorb and filter heavy metal ions, while mineral ions that are beneficial to the human body are retained.

At present, Fotile has applied membrane chromatography to a new generation of water purifiers, and has been accepted and supported by national authorities. By filtering out harmful substances such as heavy metals and bacteria while retaining minerals, this water has a direct drinking quality. The test results show that the removal rate of heavy metal ions lead, cadmium, chromium and arsenic in the membrane chromatography water purifier reaches the same level as that of the reverse osmosis membrane. Harmful microorganisms and organic compounds that cannot be detected by TDS, such as bacteria, viruses, antibiotics, and pesticide residues, can be filtered in the effluent.

With the times, this product that filters out harmful substances while retaining beneficial minerals is a better choice.

The third rule: pay attention not only to the water purifier, but also to the later use experience and quality of life. Water purifiers range from hundreds to tens of thousands, expensive and expensive, and it is not advisable to blindly pursue cost performance.

The experience of using the water purifier after buying it back, including flux, water efficiency, filter failure, etc., can be converted into time cost, environmental protection cost, replacement cost, etc., and also affect the quality of life. The simplest example is that if you have to wait a long time to receive a glass of clean water, or if too much waste water is generated, or if the filter starts to clog and fail soon after use, such a use experience will reduce the quality of life and is not advisable.

First of all, choose according to the water quality, and secondly, when choosing the brand, you should choose the one with the sanitary approval document, and you must have the sanitary license approval document of the brand manufacturer's production place involving drinking water sanitation and safety products. After that, look at the filtration method, which is an important criterion for identifying the quality of a water purification equipment. Finally, choose according to the location of the home installation.

For example, Dingmei's desktop direct drinking machine is good, using reverse osmosis technology, it can move freely, small size, does not take up space, study, living room, kitchen, can be installed, want to put **put**.

Answer 1, safety: the manufacturer of the water purifier must obtain the health license of the superior health supervision department, so that the water purifier produced is safe and meets the national safety standards, so when buying the water purifier, look for qualified products.

2. Cost-effective: the first-class filter water purifier is a low-grade water purification product, with low price and average effect; The multi-stage filter water purifier uses a hollow fiber filter element, which can filter out clean water, which is a mid-range water purification product, and the price is acceptable to most people; The ultrafiltration nanofiltration membrane water purifier has multi-stage prefiltration and ultrafiltration membranes, which can effectively remove bacteria and fungi in the water, ensure the health of people's drinking water, and have a large output. Therefore, it is more appropriate to purchase ultrafiltration sodium filter membrane water purifier.

3. Consider water quality: If the water contains chlorine and peculiar smell, you need to buy an activated carbon water purifier, because activated carbon has a strong adsorption effect on residual chlorine and peculiar smell, and has an obvious removal effect. In addition, if you live in a place where the water quality is relatively turbid, you should buy a water purifier with the dual functions of coarse filtration and fine filtration.

1. Understand the local water quality: In the north of China, the water quality is generally hard and there are many impurities, while the water quality in the south is softer but the heavy metals and water pollution are serious, so you should choose the water purifier products that meet the local water quality when purchasing water purifier brand products.

2. Check whether the water purifier filter element of the water purifier is easy to replace; Whether the material of the filter element conforms to the national standard model, because the standard model of the water purifier filter element is easier to buy.

3. Choose a cost-effective smart water purifier, as long as the water purifier is high, the performance will be stable. It is also necessary to see whether the water purifier brand has strong professional technology and good after-sales service.

You can choose from the water purifier function, material, filter material, water flow and service.

First of all, the ice water purifier. It's expensive, but it's worth it, and I'm happy and satisfied to be able to buy and use the world's No. 1 Ice Water Purifier. Drinking water safety is a big deal, and you can't afford to be careless.

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1.To choose a water purifier, we must first choose a suitable product according to the water quality, some areas have a high content of calcium and magnesium ions in the water, and the water quality is hard, so you need to choose a water purifier with a soft water function. 2.

Secondly, the choice of water purifier depends on product quality and after-sales service, and the water purifier should be maintained frequently, which has higher requirements for quality and after-sales. Generally speaking, the product quality of large brands is the best, and the after-sales service is better, which makes people more assured. 3.

Again, the choice of water purifier depends on the cost performance, not the more expensive the product, the better, according to the needs of use and the cost of use. DSM's intelligent super water purifier can meet the public's water purification needs.

I don't know, there are many brands, who knows if there is a ranking! I feel that the Bingzun water purifier is OK I have one installed at home and the effect is good

1. Whether there is a product hygiene license approval.

The quality of the water purifier is very important, it is necessary to comply with the provisions of the measures for the supervision and management of drinking water sanitation, obtain the health license of the superior health supervision department, and after the identification of the technical supervision department, the water purifier that meets the national "drinking water quality standards" is trustworthy.

2. Whether it has safe and effective sterilization technology.

Water purification equipment uses two ways to sterilize, one is to add disinfectant, which can kill some bacteria, but the disinfectant contains trace amounts of chemical components that are harmful to human health; The second is ultraviolet sterilization, which is one of the most effective sterilization technologies recognized internationally.

Because ultraviolet sterilization is safe and efficient, it can quickly kill almost all bacteria, and ultraviolet sterilization uses physical principles to sterilize, without any chemical agents, and will not have any effect on the human body.

3. Choosing the right filter element is crucial.

The first generation of water purifiers are mainly filtered through activated carbon, ceramics, etc., which are easy to breed bacteria, pollute water sources, and cannot achieve the effect of clean water sources; The second-generation water purifier uses a variety of artificial polymer membrane filtration, which has a significant effect on removing harmful substances in the water, but its fatal flaw is to filter out trace elements that are beneficial to the body.

The third-generation water purifier adopts nanocrystalline filter technology, which solves the defects of the second-generation water purifier and filters out harmful substances and heavy metals in the water. Therefore, when you choose a water purifier, you must ask about the filtration technology and filter material used to see if it meets your own needs.

4. Whether it has a perfect after-sales service system.

After buying some brands, many consumers can't find the address of the maintenance service** or the repair service company, which makes consumers very helpless and causes a waste of resources, and many water purifiers have become furnishings.

The after-sales service of the water purifier mainly focuses on the replacement of the filter element, if the filter element is not replaced for a long time, it will pollute the water source, and the water purifier will also become a "sewage device". When choosing a water purifier, you must choose a manufacturer with perfect after-sales service, such as using a customer service system to track customer information and prompt customers and companies to replace filter cartridges.

5. The purchase performance ratio is high.

The structure of the water purifier is different, and the water purification effect is also different. Generally speaking, the structure of the primary filtration water purifier is simple, mainly activated carbon, its filtration capacity is limited, and it can only be used for coarse filtration, and the filtered water is best heated and boiled for drinking. Most of the first-level filtration water purifiers are low-grade water purification products, and the price of each unit is between more than ten yuan and 150 yuan.

The multi-stage filter water purifier has two stages of coarse filtration and a set of fine filtration, and the fine filtration mostly adopts a hollow fiber filter element, and the filtered water can be directly drinkable. Multi-stage filter water purifier is a mid-range water purification product, each priced between 300 yuan and 500 yuan, which can be accepted by the working class and used more by families.

It is best to choose Lili ultrafiltration membrane for household water purifiers, which has high filtration accuracy and can retain the beneficial minerals of water.

To choose a household water purifier, you must first understand these points:

1. The filter element of the water purifier. The key to water purifier purification is the filter element, a good filter element uses a good material, in order to ensure the purification effect, if you choose an inferior filter element, it will not only weaken the purification, but also pollute the tap water twice, so don't be greedy for cheap and ignore the water purifier.

2. The material of the water purifier. If some inferior brands win at low prices, compress costs, and have rough workmanship, we can carefully distinguish them from the appearance.

3. The data of the water purifier. The water purifier has wastewater identification, flux data, etc., we understand these data and choose the right water purifier.

2. Gree water purifier.

Gree purifies water and creates a culture of quality living. The fashion design shows the elegant art of modern water purification, and endows each product with rich cultural contact, fully demonstrates the life concept of "wisdom, purity and quality" to consumers, and brings customers more and enjoys a high-quality water purification life.

3. Qinyuan water purifier.

An old brand in the domestic water purifier industry, it is a comprehensive enterprise integrating the design, research and development, production and sales of professional civil household water treatment equipment. In the market, Qinyuan water purifier is a famous brand with a good reputation.

m Water purifier. The filter element adopts the world's advanced high-polymerization sintering activated carbon technology, and adopts the world's high-tech technology to sinter ultra-fine powdered activated carbon into a compact activated carbon rod at high temperature, which greatly improves the content and effectiveness of activated carbon and ensures better filtration effect.

5. Lisheng water purifier.

Lisheng is a high-tech enterprise group integrating water treatment science and technology research, ultrafiltration equipment manufacturing, sales and service, and has an ultrafiltration membrane production base in Hainan, a special economic zone in China, and is one of the few large-scale ultrafiltration membrane manufacturers in the world that can independently develop high-performance ultrafiltration membranes and achieve industrial production.

What is suspended matter in tap water?

The suspended matter in tap water is particles with a particle diameter of about 14-4mm or more, which can be seen to be mainly composed of sediment, clay, protozoa, algae, bacteria and viruses, and polymer organic matter. The turbidity of water is also caused by these substances.

These particles are very unstable and can be removed by precipitation and filtration, suspended solids are the main cause of turbidity, color, odor, and its content in water is also unstable, often changing with seasons and regions.