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Small Space Refrigerator Ozone Sterilizer

Founded in Guangzhou in 2009, Olansi Healthcare Co Ltd is a professional manufacturer on Ozone sterilizers, fruits and vegetables disinfectors, hydrogen inhalers, disinfectant liquid generators, air puriifers, water purifiers, beauty products, hydrogen water generators etc. Healthcare products. Olansi covers more than 60000 square meters, owns more than 350 staffs, with turnover US$ 50 million in 2020. Olansi has been serving worldwide famous brand like Haier, TATA group etc. for a long time and have good partnership with worldwide customers.

Today we want to share with consumers on Ozone Sterilizer.

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The epidemic has not yet ended, and we still can’t fall lightly when you gather. Going out to wear masks, regular disinfection is also the correct initiative to do with the health of others. With the gradual completion of the country, the mask is no longer difficult to buy, but the indoor environment is disinfected, and many friends pay attention. Although ultraviolet disinfection has a certain effect, there is also its limitations, where ultraviolet light is not found, the disinfection effect is equal to zero.

As a common disinfection method, ozone disinfection has been adopted by the hospital. It is well known that ozone has powerful oxidation resistance, which can directly undermine the genetic material and membrane of the virus, thereby killing bacterial viruses. Compared to other disinfection methods, ozone can enter other disinfectous indoor dead angles, such as seats, air conditioning ports, ground dark angles, etc., and disinfective and sterilization effects are more obvious.

Although ozone disinfection is good in life, ordinary ozone disinfecting equipment is relatively large, and can only put the item into the disinfection machine during disinfection, while ozone will reach disinfection effect at a certain concentration, so it is also The popularity of ozone disinfection equipment is limited. However, if the ozone disinfection equipment is small, it is believed that there is still a lot of interest in the current situation that has not been released.

Recently, Olansi launched a portable ozone sterilizers S1, which is not only small and portable, but also a wide range of applications, such as refrigerators, bedrooms, backpacks, wardrobes, and cupboards, so we understand together. Let’s reivew this product as below.

Welcome to contact Olansi for more sterilizers wholesale.

Sammi Liang

Email: olans03@olansgz.com

olansi Products

where can we buy the best air purifier

Olansi Healthcare Co., Ltd(Guangzhou Olans Water Treatment Equipments Co. Ltd) is a professiona whole air purifier manufacturer producing negative ions air purifier,activated carbon air purifier,hepa air purifier,antibacterial air purifier and so on.

Consider the other health hazards associated with breathing in everything from household cleaning products to furniture flame retardants, and buying an air purifier seems like a no-brainer. Indeed, experts say certain kinds can be very helpful. But when it comes to one popular type of purifier—so-called “ionizers”—the risks may outweigh the rewards.

Pets share our homes every day and bring with them pet odors, urine stains, and skin dander. For family members who have allergies, these odors can be upsetting and cause respiratory distress, which may result in a visit to the hospital with expensive and prolonged treatment.

olansi air purifier

 

 

An air purifier will improve the overall indoor air quality and in turn, improve your health. We tend to associate air pollution only with outdoor air; however the Environmental Protection Agency (EPA) estimates that indoor air pollution levels can be as many as two to five times higher than outdoor pollutant levels.

Dustpollen, pet dandermold spores, and dust mite feces can act as allergens, triggering allergies in sensitive people. Smoke particles and volatile organic compounds can pose a risk to health. Exposure to various components such asvolatile organic compounds increases the likelihood of experiencing symptoms of sick building syndrome.Air purifiers are becoming increasingly capable of eliminating a greater number of bacterial, virus, and DNA damaging particulates through the use of ultra violet lighting technology.

 

In fact, indoor air pollution is one of the top environmental concerns in the country. Many of the pollutants removed by air purifiers are known to trigger allergies and asthma; therefore an air purifier will offer relief to those suffering and lessen the possibility of a person contracting them if they don’t already suffer from them. Infants and small children are especially susceptible to contracting asthma and allergies since they spend a majority of their time indoors.

About Guangzhou Olansi Healthcare Co., Ltd

Established in 2009, located in Guangzhou City in South China, Guangzhou Olansi Healthcare Co., Ltd is a professional hydrogen water maker and air purifier OEM manufacturer. The products of the company contain pm2.5 air purifier, home air purifier, HEPA air purifier, ionizer air purifier,air purifier with humidifier,room air purifier and so on. All OEM air purifiers are manufactured in accordance with the CE, ROSH, and CB Certification.

With the advantages of the development of environmental protection technology product development work, to create maximum value for customers.

https://youtu.be/ddowVMMQLcU

For more details ,you can search below website address Website: https://www.olansi.net/product-category/air-purifiers/negative-ion-air-purifier/

Health threats invisible to the eye

OLANSI Healthcare Co., Ltd. (OLANSI for short) was founded in 2009 and is a new high-tech enterprise focusing on the research and development, production, sales and service of healthy home appliances. Committed to using technology to create a healthy, beautiful and high-quality life for consumers. Won the title of Guangdong High-tech Enterprise, 2017 China Environmental Electrical Appliances (Air Clean) Top 10 Professional Brands and many other awards.

Air pollution, smog, PM2.5, these words have appeared frequently in recent years. When it comes to air pollution, it is easy to think of the sandstorms in the north and the gray sky every winter. Not only the outside air, but it is not difficult to find air problems at home: the hair on the water in the cup, the dust sticking to the fan net.

Therefore, people who are particularly sensitive to air odors, pollution sources, and allergens will use air purifiers as a solution to their problems. When you buy an air purifier, the performance parameters of the machine’s filtration level, can filter pollutants, air purification efficiency, and silence are all valued by everyone. These parameters can most intuitively evaluate the purification ability and efficiency of the air purifier. . Then OLANSI recommends several products to protect our healthy breathing, so that everyone is no longer troubled by air pollution:

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An air purifier suitable for your family is very important to us. For your health, it is not too late to buy an air purifier. OLANSI is committed to technology to create a better life for consumers. , High-quality and healthy life, to produce the most suitable air purifier for everyone. If you need a suitable air purifier, OLANSI is at your service at any time.

Drink water in one step, and the drinking machine water dispensr is more and more popular

It saves the trouble of buying bottled water and bottled water, but can drink pure water in one step. The combination of water purifier and instant water dispenser is a new choice for many families to drink healthy water. In 2021, with the iterative upgrade of products, the emergence of drinking machines will break this pattern again, and the agency predicts that its popularity will continue to heat up in 2022. Whether it is a company or a rented apartment, even if there is no condition to install a water purifier, you can drink pure water through a drinking machine.

healthy drinking water

The purifying machine is free of installation to break the space limitation

Healthy drinking water is an uninterrupted need of modern people throughout the day. The water purifiers that have abandoned the shortcoming that bottled water and bottled water need to be purchased continuously, coupled with the instant hot water dispensers that heat up rapidly, have become the new “standard” for healthy drinking water for young families in recent years. The data shows that new products in the online terminal water appliance market have been active since 2018, and will reach its peak in 2020. A large number of emerging Internet brands and comprehensive home appliance brands have flooded into the track and quickly occupy the waist market, using fierce price wars to grab the share of leading brands. 2021 In 2018, the market began to recover rationally, brands gradually withdrawn, and the competition pattern of brands in the offline market was relatively stable.

However, since the installation of the water purifier needs to change the water pipeline, it is inconvenient to implement for rental housing or company scenarios. The emergence of the drinking machine has broken this obstacle. As can be seen from the name, the main function of the purifier is to purify and heat. After the tap water is put into the water tank, the pure water filtered by the filter element is stored in the water tank, and the water is boiled in an instant hot mode. When drinking hot water, it is no longer necessary to boil the water in advance. After the temperature is set, the power of the heater can be controlled by Or the flow rate to achieve the hot water at the target temperature.

1 One machine can handle the process of pure water filtration, boiling water cooling, and heat preservation, which is also one of the best drinking water solutions at present. Major home appliance brands are entering this market one after another. The reporter found that the functions of similar products are roughly the same, but there are differences in appearance design, capacity and energy efficiency of filter elements. The price of mainstream products ranges from 1,500 yuan to 3,000 yuan.

The market heats up

Promote the iterative upgrade of clean drinking equipment

According to the total data from Aowei Cloud (AVC), the overall market sales of water appliances in my country will be 36.21 billion yuan in 2021, a year-on-year increase of 2.5%. Yuan, up 1.3% year-on-year, and the scale of net drinking machines was 2.08 billion yuan, up 6.4% year-on-year. Although the heat is heating up, the penetration rate of the water appliance market represented by water purifiers in my country is still relatively low, and there is still a relatively broad market and potential demand to be tapped.

The survey shows that at this stage, water purifiers, drinking fountains, and water dispensers are all breaking through their original functional scenarios. With the advantage of free installation, it can realize scenarios such as drinking water in the whole house and drinking water in the mother and baby bedrooms. In 2021, some brands have added the detachable function of the water purification water storage tank, so that the desktop water purification machine will also have a place in the kitchen cooking water scene; the instant hot water dispenser will expand to the tea drinking scene by adding capsules and automatic brewing functions. . In addition, water softeners achieved rapid growth driven by new scenarios such as clothing care and personal care and bathing.

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Water purifiers and drinking purifiers have shown an obvious upgrade trend. For example, the large flux, intelligent, long-term filter element, integrated heating of the water purifier, water sterilization and mineralization filter element of the drinking machine have enriched the product configuration, and the miniaturized central water purifier and water softener are suitable for household installation. Significant growth.

 

The implementation of the national standard is imminent

Product entry barriers raised

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It takes more than one cup of wastewater to produce a cup of pure water? Such water purifiers will be “eliminated” by the market this year.

It is worth noting that the national standard “Water Efficiency Limits and Water Efficiency Grades for Water Purifiers” will be implemented on June 1, 2022. The new standard has slightly improved the wastewater ratio requirements for reverse osmosis and nanofiltration products. The provisions of the rated total net water volume. This has an impact on some brands, and a large number of products need to be iterated. Some brands have actively responded to the new water efficiency level requirements and removed products that did not meet the standards.

It is predicted that based on the implementation of the new water efficiency grade standard, the entry threshold for water purifiers will increase, and the number of brands that will exit the water purification market in 2022 will increase. The concentration of Top20 brands will continue to increase, and competition will intensify. The head brands of traditional water appliances should be wary of new Internet brands that are good at marketing and powerful comprehensive home appliance brands to seize the market.

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According to the analysis of the price positioning of new products of various brands in 2021, the main competitive price segment of online water purifiers in 2022 will be between 2,000 and 3,000 yuan. In addition, the new water efficiency standard will be implemented soon, and some models will be eliminated in the entry-level market. , the online industry average price continued to rise.

At the same time, the new water efficiency standard will accelerate the elimination of low-end products, and the total rated water purification and long-term filter life share will be significantly increased. At present, Olansi (a manufacturer specializing in the production of water purifiers) has actively promoted the iterative upgrade of internal products. The functions of large flux, intelligence, and integration of net heat have maintained a steady pace of upgrading.

How to fight for pure air indoor

Founded in Guangzhou in 2009, Olansi Healthcare Co Ltd is a professional manufacturer on air purifiers, water purifiers, Ozone sterilizers, fruits and vegetables disinfectors, hydrogen inhalers, disinfectant liquid generators, beauty products, hydrogen water generators etc. Healthcare products. Olansi covers more than 60000 square meters, owns more than 350 staffs, with turnover US$ 50 million in 2020. Olansi has been serving worldwide famous brand like Haier, TATA group etc. for a long time and have good partnership with worldwide customers.

Indoor air purifiers refer to adsorption, decomposition, or transforming various air pollutants (generally including dust, pollen, odor, formaldehyde, bacteria, allergens, etc.), effectively improve air cleanliness, is improved Indoor air quality, creating a healthy and comfortable office and residential environment.

In fact, although the name, species and function of the air purifier declared in the market, the roots of the retroactive, from the working principle of the air purifier, mainly not the following:

One is the principle of air purification of passive adsorption filters. The passive air is purified, and the air is pumped into the machine with the fan, filter air by built-in mesh, mainly capable of filtering dust, odor, disinfection, etc. This filter air purifier is multiferic using HEPA mesh + activated carbon filter + optical catalyst (cold contact, multi-catalyst) + ultraviolet sterilization + electrostatic adsorbed filter. Among them, the HEPA filter has the effect of filtering dust particulate matter, and other activated carbon, etc., the like is mainly adsorbed, and therefore, it can be seen that there are various labels such as wind turbine filter, photocatalyst, ultraviolet, static electricity, which seems very confusing. The working principle used by the air purifier is basically the same, all of which are passed by passive adsorption filters.

The second working principle is the principle of active air purification. The active air purifier and dual purification air purifier on the market generally select only one active purification technology. The main silver ion purification technology, negative ion technology, low temperature plasma technology, optical catalyst technology and net ion group technology. The fundamental difference between the active air purification principle and the principle of passive air purification is that the active air purifier gets rid of the limitations of the fan and the filter, not passive waiting indoor air is filtered in the purifier, then Through the exhaust of the fan, it is effective, the active to release the purified sterilization factor in the air, and the air is not deadly purified by the various corners of the chamber through the characteristics of air. It is mainly two types of two types of air-proof factor treated air using negative oxygen ions to treat air and utilize ozone as purifying factors. These two are typical air purifiers based on active purification principles.

Purification requirements classification

1 Pure type.

If it is located in areas where humidity in indoor humidity, or the air quality requirements are not too high, then a purely purified air purifier meets the demand.

2 Humidification and purification.

If it is located in a dry area, the air conditioner is often opened by air conditioning, causing indoor air drying, or high for air quality, then an air purifier with humidification and purification is the most suitable choice. .

3 Intelligent type.

If you like an automated operation, intelligent monitoring air quality, or reflect noble taste, or to give gifts need to be more decent, then buy an intelligent air purifier is the best choice.

4 Desktop type.

It is placed on the desktop, purifies the air of the person around the desktop, protects the health of the people near the desktop. If you often sit in front of the computer, the desk, or the desk, or the desk, but the indoor area is not small, or the public place, you pay the money to buy a large air purifier is not cost-effective, or not, the desktop The type air purifier is a good choice.

5 Large and medium-sized.

It is mainly suitable for large-scale indoor occasions, such as home halls, senior bank offices, senior administrative offices, important speech hall conference halls, superior hotels, hospitals, beauty salons, kindergartens.

6 Central air conditioning system type.

Mainly suitable for installation of central air conditioning, or with a single room or multiple rooms of the ceiling.

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OLANSI tell you why Smoking is harmful to health

OLANSI Health Industry Co., Ltd. was founded in 2009 and is a new high-tech enterprise focusing on the research and development, production, sales and service of healthy home appliances. Committed to using technology to create a healthy, beautiful and high-quality life for consumers. Won the title of Guangdong High-tech Enterprise, 2017 China Environmental Electrical Appliances (Air Clean) Top 10 Professional Brands and many other awards.

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A good purifier can remove particulate matter (PM2.5, etc.) and gaseous organic matter (TVOC) at the same time. This basically covers the harmful parts of second-hand smoke. Carbon monoxide cannot be removed, but it is also difficult to accumulate to harmful concentrations. but! It’s not that you can smoke casually at home if you use a purifier.

 

  1. The purifier can’t solve the problem of third-hand smoke. Although the purifier can greatly reduce the pollution of indoor air through purification, thereby reducing the third-hand smoke attached to various surfaces, it cannot be cured.

 

  1. The purifier is not like a mask. It doesn’t mean that it can solve the problem immediately if it is effective. The purifier maintains the dynamic balance of indoor air, not one-time purification. Introducing pollution will naturally push this dynamic balance to a higher level. Even if it is operated in automatic gear to deal with the short-term pollution process, it takes time to restore the pre-pollution level, and during this period, people cannot keep breathing. For example, turning on the air conditioner in summer can lower the indoor temperature, but if you have to regenerate a fire in the house, it is impossible to say that there is no effect.

olansi Products

  1. Smoking indoors will waste the filter. Second-hand smoke will quickly consume the filter, causing the performance of the purifier to degrade rapidly (normally, the purifier can handle about tens to hundreds of cigarettes). Although it is said that the money spent on purifiers is used, there is no need to save the use, but there is no need to waste extra. Purifiers can greatly solve the problem of second-hand smoke, but smoking is something like that, if you don’t smoke, try not to smoke; if you have to smoke, go out; if you really don’t want to go out, there is indeed a place at home, you can go to the kitchen and face the range hood , It’s better to get rid of it directly.

 

For the health of you and your family, please reduce smoking and use an air purifier. Olansi recommends several trusted air purifiers models for you:

Air purifier

The reasons for choose OLNASI HEPA air purifier

olansi Products

OLANSI Health Industry Co., Ltd. was founded in 2009 and is a new high-tech enterprise focusing on the research and development, production, sales and service of healthy home appliances. Committed to using technology to create a healthy, beautiful and high-quality life for consumers. Won the title of Guangdong High-tech Enterprise, 2017 China Environmental Electrical Appliances (Air Clean) Top 10 Professional Brands and many other awards.

 

The current environment is getting worse, and there are more haze days. Many families will buy air purifiers to create a healthy indoor environment. So what are the functions of air purifiers? Why are many people using it? Today OLANSI will analyze it with everyone.

 

  1. There are a lot of fine dust and some particles in the air, and if the human body directly inhales it into the lungs, it will cause pneumonia. If you stay in such an environment for a long time, it may cause lung cancer. To effectively reduce indoor dust, an air purifier can play such a role. It can remove dust and fine particles in the air, thereby protecting our body and mind. healthy.
  2. After the house has just been renovated, some furniture will emit toxic and harmful gases, such as formaldehyde and benzene, which are also the culprits of leukemia. After the home is decorated, you need to buy an air purifier, which can absorb these toxic and harmful gases and create a good environment. Some furniture products may slowly evaporate formaldehyde, so the purifier should be turned on frequently at home.
  3. If family members like to smoke, there will be a strange smell indoors, which is also very harmful. The home should be turned on frequently. With this system, the indoor environment can be more comfortable and healthy.

olansi air purifier

I believe everyone has a certain understanding of air purifiers, so let OLANSI recommend several air purifiers that are suitable for most people:

OLANSI new arrival

An air purifier suitable for your family is very important to us. For your health, it is not too late to buy an air purifier. OLANSI is committed to technology to create a better life for consumers. , High-quality and healthy life, to produce the most suitable air purifier for everyone. If you need a suitable air purifier, OLANSI is at your service at any time.

What effects can intelligent air purifier achieve?

In addition to their own physical fitness, physical well-being has a great relationship with everyone’s air quality and environment. If the air contains more viruses, bacteria, formaldehyde and other harmful substances, long-term inhalation will naturally have a great impact on the health of the body. At this time, the use of intelligent air purifier is a good choice. What effects can intelligent air purifier achieve?

Intelligent air purifier can play an electrostatic dust removal effect. There are many dust smaller than cells, bacteria and smoke inhaled for a long time in life. Such air is easy to cause lung disease, liver cancer, lung cancer and other diseases. At this time, the air purifier is used, which can eliminate the dust less than 2.5 microns. However, try not to use ordinary purifiers, such as filter paper to filter the dust in the air. Such air purifiers are easy to block the filter hole, which not only can not achieve the effect of sterilization, but also easy to form secondary pollution.

If the air quality requirements are not particularly high, you can choose a purified air purifier. It is suitable for people with moderate indoor humidity. The purchase of such an air purifier can meet your daily needs.

olansi air purifier

There are also humidification and purification types of air purifiers. For example, if the air conditioner is often turned on, or the area is relatively dry, the indoor air is dry, and the air quality requirements are relatively high, you can choose an air purifier with humidification and purification function. The vaporization, through the disc filter or the rotation of the windmill filter, leaves the harmful substances in the tray to eliminate, and discharges ultra-fine and clean water molecules into the air.

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Olansi K08 series air purifier with humidifier 

In addition to households or large public places, air purifiers can be used to purify the air, and they can also be used in cars. At the time of purchase, you can buy a car type, which can purify car odors, car formaldehyde and other in-car pollution needs. in the car.

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Olansi Car Air purifier

When choosing an air purifier, if you want to experience higher-grade automatic operation, intelligently monitor air quality or give gifts to people who are more face-to-face, intelligent air purifiers are the best choice. Such air purifiers are related to ordinary purifiers. It is smarter and more high-end, whether it is placed at home or given to relatives, friends, the elderly, and bosses. etc. are good options.

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Olansi mini desktop air purifier 

When choosing air purifiers in large places, you can choose the central air conditioning system type, such as central air conditioning or single room or multiple rooms with ceiling.

In addition to small-scale air purifiers suitable for household use, there are also medium and large-scale air purifiers, such as senior administrative offices, senior hotels, beauty salons, hospitals, kindergartens and so on. For indoor places with relatively large area, large and medium-sized air purifiers can be selected at the time of selection.

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For example, it is not cost-effective for people to choose an air purifier in front of the desk, for example, if they often want to buy an air purifier in front of the desk this year.
After the effect that the air purifier can achieve, we can understand that it can really play a role in purifying the air. If there are the above needs or people who need to purify the air in any place, they can buy suitable ones. In addition, they must choose the air purifier of the right factory.

Olansi best home use air purifier

Olansi is a leading manufacturer based in Guangzhou. Olansi offer their products more than 40 countries and all main markets, providing first class service and support at all times. The company has been operating since 2009 and has almost 10 years experiences in the field of air purifier and water purifier producing.

Olansi air purifier

For Home Appliances,Indoor air purifier refers to adsorption, break down, or convert all kinds of air pollutants (including dust, pollen, peculiar smell, formaldehyde, decoration pollution, such as bacteria, allergens, etc.), effectively increase the air cleanliness of the product, is to improve indoor air quality, create a healthy and comfortable office and residential environment is very effective.In fact, although the name, type and function of air purifiers announced in the market are not the same, but from the perspective of the working principle of air purifiers, there are mainly two types: passive adsorption filtration type and active filtration type.

 

In our life ,oxygen and negative ions are a pair of good brothers in the air. They are two elements that are indispensable to human life. Oxygen is the first need of life movement, accounting for 61% of life. Among other main components, hydrogen accounts for 12%, carbon accounts for 20%, and nitrogen accounts for 3%.

 

Using Air purifier tips:

 

  1. Start the air purifier to clean the air according to the environmental pollution. For example, an air purifier that purifies PM2.5 pollution is preferably used in the case of serious air pollution or indoor environmental pollution, which can ensure a good purification effect. If the atmospheric air quality is good, there is no need to turn on the air purifier for a long time. Summer and winter can be combined with a humidifier for best results.

 

  1. It is necessary to clean and maintain the purifier in time, and install an electrostatic adsorption purifier for cleaning the signal light. When the signal light is on, it indicates that the dust collection is full, and the dust collecting plate should be cleaned.

 

3, the purifier of high-efficiency filtering function can often check the filter replacement indicator. If there is no indicator light, you can open the machine to check the pollution of the filter element. If the filter element turns black, you should replace the filter element immediately.

 

Keep healthy,breath fresh air. To find out more, please visit: https://www.olansi.net/

https://youtu.be/ddowVMMQLcU

What is the difference between a water purifier that produces wastewater and a general water purifier?

In our daily life, we will be exposed to many water treatment equipment and methods, especially the process of converting natural water and tap water preliminarily treated by waterworks into drinking water. From boiling to adsorbing impurities with aluminum potassium sulfate (alum) and activated carbon, and then filtering through composite filter element, it can be used as drinking water. At the same time, if we continue to improve standards and take the preparation of pure water as the ultimate goal, there will still be a combination of technical steps such as distillation, RO reverse osmosis, ultraviolet irradiation and deionization exchange.

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RO reverse osmosis is a technology that extends from “decentralization” in the industrial and chemical field to the household field. With the wide application of semi permeable membrane, it also brings wastewater from RO reverse osmosis water purifier, which is different from general filter water purifier / water dispenser. The main difference between the two is that the latter has further water purification capacity through the application of RO reverse osmosis technology, and has the ability to reduce the content of dissolved inorganic salts in water and produce softened water.

Considering that the ability of conventional filter element to absorb and intercept impurities is always limited, the application of semi permeable membrane can be said to be a big step forward in water filtration technology. Here we briefly introduce the chemical potential and osmotic pressure as the theoretical basis.

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Chemical potential as an amount of thermodynamic strength is similar to temperature. We know that heat is always transferred spontaneously from high-temperature objects to low-temperature objects. Similarly, particles always tend to transfer from the area with high chemical potential to the area with low chemical potential, which is reflected in specific environmental conditions: only when the water supply components pass through the semi permeable membrane of aqueous solutions with different concentrations on both sides, the water molecules on the low concentration side have the tendency to penetrate to the high concentration side.

However, this trend is not endless. On the one hand, with the passage of water molecules, the concentration of the solution will change in real time. On the other hand, the aqueous solution on the high concentration side will generate additional pressure, which will eventually form a balance between pressure and chemical potential. This water blocking molecule will penetrate from the low concentration side to the high concentration side, and the minimum additional pressure applied from the high concentration side is the osmotic pressure.

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By understanding this point, we can more easily understand the principle of RO reverse osmosis water purifier: apply greater pressure on the side of high concentration aqueous solution (such as tap water) through booster pump to force water molecules to permeate into the low concentration side in turn, while most salt can not pass through semi permeable membrane and can only be deposited on the high concentration side, In this way, the water flowing out from the low concentration side is more suitable for drinking after a variety of treatment, and the purification steps include filtration, adsorption, softening, etc.
Some readers may ask: can the water purifier only use RO reverse osmosis technology to replace the traditional filter element? This is feasible in theory, but not suitable in practice, because on the one hand, considering the size and type of impurities, if the large solid impurities that can be blocked in the conventional filter element directly impact the surface of the semi permeable membrane, the water flow is easy to cause damage, and the semi permeable membrane is directly discarded, with a high unit cost; On the other hand, due to the trade-off between cost and service life, the interception function of the traditional filter element was originally in the field of large solid impurities, which is also a more economical solution. For the water filtered by physical, chemical, adsorption and other methods, the trace salt that cannot be used in the previous steps shall be handed over to the semi permeable membrane for interception, so as to maximize its service life and reduce the burden of cost and consumables. As the saying goes, an ox knife cannot kill a chicken. This sentence can also be used for water purification.
The final question to be answered is why the RO reverse osmosis water purifier produces wastewater. This is related to the semi permeable membrane that intercepts salt on the high concentration side. As mentioned earlier, salt cannot be deposited on the high concentration side through the semi permeable membrane. At this time, in order to prolong its service life, a self-cleaning method is carried out, which needs to act on the surface of the high concentration side of the semi permeable membrane. The carrier of this cleaning method is naturally the water that has always existed in the water purifier. When the user opens the faucet of the water purifier, it carries the purification process and cleaning process of running water scouring the semi permeable membrane surface. At the same time, the accumulated salt and part of the water are discharged into the wastewater. Although the water with high salt content cannot be drunk, it has also been purified by various filter elements before the semi permeable membrane, and there are many available scenes, so it is not a special waste of water resources.

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Nevertheless, improving the ratio of pure wastewater is also a hot topic in the research and development of RO reverse osmosis water purifier manufacturers in recent years. From the early 1:3 to 1:1, and then to the 3:1 pure wastewater ratio that some products can achieve now, it not only greatly improves the utilization rate of water resources, reduces the cost of water use, but also helps our living environment. Some manufacturers, such as yunmi, achieve this effect by providing main and auxiliary double RO reverse osmosis membranes. The wastewater generated by the main RO reverse osmosis membrane passes through the secondary membrane, which not only improves the proportion of pure wastewater, but also reduces the pressure of single RO reverse osmosis membrane and prolongs the service life.