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water purifier,filter,reverse osmosis

Should I choose ultrafiltration or RO water purifier?

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Should I choose ultrafiltration or RO water purifier?

water purifier,filter,reverse osmosis

water purifier,filter,reverse osmosis

Advantages of ultrafiltration:
Completely remove bacteria and algae including some viruses, and you can safely drink where the metal ion content is low (but it is recommended not to drink directly, the quality of tap water, it is…), and the relative RO machine, the consumables are low, do not need to be frequent Replace expensive filter elements, and do not discharge waste water, no electricity, and there are also RO and water storage buckets to save money and water.

Disadvantages of ultrafiltration:
It is impossible to filter out calcium and magnesium ions, and the scale is still scaled.
Although calcium and magnesium ions are essential nutrients for the human body every day, scale is a calcium-magnesium compound, and a certain amount of calcium and magnesium ions can be supplemented by drinking water.
However, if long-term use of water containing too much calcium and magnesium ions (called hard water in jargon) may cause some diseases, according to scientists, in areas with high water hardness, the incidence of cardiovascular disease is low, but the incidence of kidney stones is As the hardness of water increases, it is mostly soft water in the south of China, and hard water in the north.

Advantages of RO:
It is cleaner than ultrafiltration. (RO machine) Reverse osmosis is a relatively safe and scientific water treatment technology recognized by the world. The water coming out through the reverse osmosis membrane is basically pure water, so it is safer. Therefore, the reverse osmosis machine is also referred to as a pure water machine. RO machine. The reverse osmosis membrane can retain 0.0001 micron of material, which is a relatively fine membrane separation product, which can effectively retain all dissolved salts and organic substances with molecular weight greater than 100, while allowing water molecules to pass. Therefore, it is possible to effectively remove dissolved impurities, bacteria, viruses, chemical contaminants, chlorine for disinfection in waterworks, heavy metal residues in pipes, and small molecular organic substances. At the same time, the weak alkaline filter core, composed of mineral fossils, can turn pure water into weak alkaline water; UV ultraviolet germicidal lamps can further kill the disinfecting bacteria.

The disadvantages of RO:
RO pure water opportunity produces certain wastewater and electricity. The wastewater is different from the water purifiers of various brands. Although there is a certain amount of waste water, it is more important than health. Moreover, the filtration accuracy of the pure water machine is much higher than that of the ultrafiltration machine. The water quality filtered by the pure water machine has a very low impurity content, which ensures the health of the drinking water. Therefore, in areas with good water quality, there is no scale, etc. Ultrafiltration can be used. If the scale is serious, even in areas with poor water quality such as heavy metals, it is recommended to choose RO.

Note: RO opportunities generate wastewater? What causes these wastewaters?

There are two main sources of wastewater: washing wastewater and filtering wastewater.

1. Flushing wastewater is used to flush the RO membrane, usually when the machine restarts water production.
Rinse, so as to avoid the RO membrane being blocked and prolonging the service life of the RO membrane;
2. Filtration of wastewater is a retentate that is trapped by the RO membrane after filtration of tap water.

According to the pure water recovery rate of about 30% set by the general manufacturer, if 15L of pure water is used every day (drinking water and cooking can basically meet), 35L of wastewater will be produced, the total water consumption will be 50L, and the total wastewater will be 1.05 in one month. Tons (35L*30=1050L). The water meter is calculated in tons; 1 degree (ton) water is equal to 1 cubic meter. Due to different charges in various regions, the water fee is about 3-5 yuan/ton. In a month, the cost of wastewater is about 5 yuan. In fact, you don’t have to worry about too much waste. And with the development of technology, the current lower and lower wastewater is being developed than the water purifier, and the future RO reverse osmosis water purifier will become more and more popular.

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water purifier,filter,reverse osmosis

Why did the hospital start to install water purifiers and provide direct drinking water?

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Why did the hospital start to install water purifiers and provide direct drinking water?

water purifier,filter,reverse osmosis

The hospital is the place to save the wounded and dying, and it is the center of medical research. Safe and clean drinking water is the objective demand and important symbol of modern hospitals.

I remember that when I was hospitalized due to illness, my family would take a Kettle to the water room to open the water. Of course, whether it is a hospital or a family member, I would never dare to drink tap water directly from the patient.

People’s immunity declines after getting sick, and if they don’t pay attention, they are more prone to problems.

The World Health Organization has also said that 80% of the diseases are caused by unclean drinking water. If you don’t pay attention to it, you may really get worse.

To give an example of life, after drinking and vomiting, if we drink tap water directly, it is very likely to have diarrhea. Because after drinking alcohol, the body’s immunity is getting worse. At this time, if there is a problem with water quality, viruses and bacteria can easily enter. However, it is reasonable to say that the strict filtration and disinfection of tap water through the water plant should be safe and clean. Why is there a safety hazard?

After the clean filter element of the water purifier has been used for a period of time, where is the contaminated contaminant coming from?

The first is the water pipe network. After the tap water is delivered from the factory, it will be transported or stopped for a long distance through the water supply network, and various problems will occur when it arrives at the user. In particular, long-term tap water pipelines will inevitably cause aging corrosion problems after long-term use. The water yellowing, sediment and rust problems in many areas are water pollution caused by water pipe aging.

This is followed by pollution from secondary water towers and water tanks. If the water tanks of some high-rise communities are not cleaned for a long time, a large amount of pollutants will be stored. Long-term accumulation will lead to heavy pollution of tap water, and the tap water delivered to each household will not meet the standard of direct drinking.

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water purifier,filter,reverse osmosis

What kind of good is the household water purifier?

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What kind of good is the household water purifier?

water purifier,filter,reverse osmosis

With the improvement of living standards and the increase of environmental pollution, we are paying more attention to the safety of drinking water. More and more families are beginning to consider household water purification equipment.

Tap water problem

Tap water is mostly treated by chlorination, and secondary pollution caused by long-distance transportation of tap water pipes. Possible problems with tap water include residual chlorine, impurities, rust, heavy metals, bacteria, organic and inorganic compound pollution sources.

Boiling water can destroy most of the bacteria, but most of the other problems above can’t be solved. Of course, some people have said that it is no problem to drink water for a lifetime. It is true that we have eaten so much oil for so many years. Some of the hazards are chronic. We must look at the problem from a development perspective and allow economic ability to begin. Consider this issue.

Household water purification equipment

Water Softener. First of all, this is to exclude it. In a strict sense, the water softener does not have the effect of purifying water. Soft water refers to water that contains no or less soluble calcium and magnesium compounds. The opposite concept is hard water. Usually we boil water and there is scale, which is because the water quality is hard. Hard water does not pose a direct health hazard, but it can cause a lot of troubles in life, such as scaling on water appliances, soap and detergent cleaning efficiency.

The household water purification equipment on the market is mainly divided into two kinds of technologies, one is called ultrafiltration, and the other is called reverse osmosis or RO membrane.

Ultrafiltration filters out residual chlorine, impurities, rust and most bacteria in the water, and does not remove scale (calcium and magnesium ions) and heavy metals.

The RO membrane has the highest filtration precision and can only pass water molecules, and everything else can be solved. When filtering, electricity is needed, and there is waste water. When a pure water is obtained, a certain proportion of wastewater is generated at the same time.

If used for drinking, RO membrane filtration is the purest, so personal advice is still to choose this.

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water purifier,filter,reverse osmosis

RO water reverse osmosis is life consciousness, you will be shocked when you look at it

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RO water reverse osmosis is life consciousness, you will be shocked when you look at it

water purifier,filter,reverse osmosis

But there are also many people who ask if the water purifier is useless. Is this clean water reliable?

What is the technology used by a small water purifier?

In fact, such a small water purifier has gone through decades to come to the homes of ordinary people.

Did you know that the core component of the reverse osmosis water purifier, the reverse osmosis membrane (RO membrane) is an outstanding case of modern bionics.

Did you know that the initial development of the reverse osmosis membrane cost the US government $3.16 billion.

Did you know that reverse osmosis technology was originally used only in aerospace technology, and made a significant contribution to the American Apollo mission to the moon, and then radiated to the military industry.

Did you know that reverse osmosis technology was a top secret patent for NASA?

As early as 1950, the American scientist DR.S. Sourirajan accidentally discovered that the seagull picked up a large mouthful of sea water from the sea when it was flying at sea. After a few seconds, it spit out a small mouthful of sea water. He has doubts: the animals that breathe from the lungs on land are absolutely unable to drink high-salt seawater, that
Why can seagulls drink sea water?

Seagull – reverse osmosis membrane biological prototype

The scientist took the seagull back to the laboratory and found that there was a film at the position of the seagull’s capsule, which was very precise. Seagulls use this membrane to filter seawater into potable fresh water, while seawater containing impurities and highly concentrated salt is spit out of the mouth.
This layer of mucosal tissue in the seagull’s throat is the prototype of the reverse osmosis membrane.
It is also the basic theoretical framework of the reverse Osmosis (R.O).

Drinking sea water is so confident

DR.S.Sourirajan believes that this major discovery is likely to be a major breakthrough in the way humans get access to drinking water, and immediately invested in the industrialization of the principle. The US government learned about this and invested $400 million (about 31.6 now). Funds of US$100 million were funded by Dr. S. Sidney Lode, a professor at the University of UCLA School of Medicine, in collaboration with Dr. Dr. S. Soirirajan to study reverse osmosis membranes. With the huge financial support and the efforts of many scientists, the original model of reverse osmosis membrane was born.

Reverse osmosis membrane working principle

In 1968, the technical preparations for the Apollo landing on the moon were carried out intensively. The most difficult headache was the most common water. The total water demand of personnel and equipment for the Apollo mission to the moon reached as much as 6 tons. Aerospace is a work that requires a lot of weight.
After all, astronauts have a pound more fat, and the cost of launching may be more than a million dollars, let alone tons of water…
How to recover and purify industrial wastewater, washing water and urine has become the biggest research topic. The reverse osmosis membrane technology was quickly cited in the aerospace industry.

Using reverse osmosis technology, the used sewage, including urine and other effluent, is purified and treated to become drinking standard reclaimed water, so that the spacecraft does not need to carry a large amount of drinking water to lift off, making a huge impact on the Apollo mission to the moon. contribution.

US top secret patent

The end of the multi-billion dollar investment is the reverse osmosis membrane water technology. At the time, the technology was listed as a top secret patent by NASA.
After the successful application of reverse osmosis technology in the aerospace field, it has moved to the military industry. Since 70 years, it has been equipped with American submarines, aircraft carriers and combat ships for the direct production of drinking water. In the United States, the image of reverse osmosis has been compared to “in vitro.” kidney”.

Good or bad is the actual effect, not a certain person has the final say!!

China began to introduce this technology in the early 1990s, equipped with warships and submarines. In 1992, Zhongnanhai established a reverse osmosis water plant to ensure the safety of drinking water and provide drinking water for foreign guests. From then on, reverse osmosis technology entered Xinhuamen. With the continuous development of the civil process, the water purifier has become the only choice for terminal water purification!

So you still doubt the effectiveness of the water purifier? Think that the water purifier is not reliable? This is a big mistake!
Water purification equipment is a very important part of medical, military, aviation and aerospace; without breakthroughs in water purification equipment, it is difficult to complete the span of China’s manned space flight, space station, aircraft carrier and submarine.

Many people say that these are so far away from our lives that there is no need to install a water purifier!!

The mobile phone was originally used for military purposes. Why is it now one person or even several?
In fact, the truth is in the following facts!

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Water purifier

Is the water you drink safe?

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Is the water you drink safe?

Water purifier

About 64% of the city’s groundwater is heavily polluted. Do you really need help?

At present, 90% of China’s groundwater is suffering from different degrees of pollution. According to the analysis of continuous monitoring data of 118 cities, about 64% of urban groundwater is seriously polluted, and 33% of groundwater is slightly polluted; The problem of drinking water safety is even more serious due to the lack of tap water and water pollution.

Based on this, domestic consumers’ drinking water safety awareness has been rapidly improved, and the water purification equipment market has experienced explosive growth. It is expected to maintain a growth rate of more than 40% in the next 6 years, and the market prospect is very huge.

The highest filtration precision and the best water purification effect

The RO reverse osmosis membrane has a pore diameter of 0.0001 μm, which is one-fifth of that of the hair strand. Bacteria 0.2-1μm, virus 0.02-0.4μm, heavy metal 0.005μm, want to pass their body type

The high-precision RO reverse osmosis membrane ensures the purity and deliciousness of the produced water. It has therefore become an important part of the water purifier.

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water purifier

Is it useful to install a water purifier at home? How to determine the home water purifier?

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Is it useful to install a water purifier at home? How to determine the home water purifier?

water purifier

With the continuous development of society, people’s pursuit of quality of life is gradually improving, and the quality of the water that is usually consumed is also more concerned. Unclean water does not drink, bad water does not drink, hesitant to install a water purification equipment at home. So is it useful to have a water purifier at home? If these conditions occur, consider installing a water purifier!

1. Look: Use a glass with a high transparency to fill a glass of water, and look at the light to see if there are any fine substances suspended in the water.
2, smell: use a glass from the faucet as far as possible to pick up a glass of water, and then smell it with the nose, whether there is the taste of bleach.
3, taste: hot drink boiled water, taste the taste of bleaching powder.
4. View: Use tap water to make tea. After the night, observe whether the tea is black. If the tea turns black, it means that the iron and manganese in the tap water are seriously exceeded.
5, check: check the home’s water heater, open the kettle, there is no layer of dirt on the inner wall. Water with too high hardness can easily cause scaling of the water heater pipe, which is caused by poor heat exchange; long-term consumption of water with too high hardness is easy to cause various stone diseases.

Is it useful to install a water purifier? Where is the use?

1. Solve the secondary pollution of tap water
After the tap water is disinfected by chlorine gas, it can kill viruses and bacteria, but it cannot remove heavy metals and volatile substances.
2, the best choice to replace bottled water
A barrel of water is about 8 to 16 yuan, the cost is high, and the shelf life of the bottled water is short. It is open after being connected with the water dispenser and is easily contaminated by pollutants in the air.
3, unlike the cost of bottled water is extremely high
Bottled water costs are high, and it is clean water, lacking trace elements and minerals. Long-term drinking is not suitable for human health, and its effect may not be like a water purifier.
4, to achieve the standard of raw drinks, the cost is lower
The water purifier can effectively separate and remove various pollutants such as bacteria, residual chlorine, heavy metals, volatile substances, rust, sediment and other impurities and harmful substances in the water. The water outlet has a good taste, and the water quality is weakly alkaline, small molecule and strong in activity.

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water purifier

RO reverse osmosis, ultrafiltration and nanofiltration

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RO reverse osmosis, ultrafiltration and nanofiltration

water purifier

Simply put, RO reverse osmosis technology has the finest filtration, but can not retain minerals and trace elements; nanofiltration and ultrafiltration are similar, can retain a part of trace elements, but can not filter heavy metal components. Ultrafiltration can only filter a part of heavy metals, easy to produce Scale. However, we only drink water to replenish water, not to supplement trace elements, so it is safer to choose the most refined RO reverse osmosis water purifier.

Therefore, compared with other water purifiers, the RO reverse osmosis water purifier filters more finely and ensures the sanitation of our drinking water. If you are entangled in which water purifier to choose, RO reverse osmosis water purifier is the best choice.

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water purifier

Advantages of RO reverse osmosis water purifier

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Advantages of RO reverse osmosis water purifier

water purifier

1. High filtration accuracy
The pore size of the RO reverse osmosis membrane is only 0.0001 micron, which is much smaller than that of bacteria, heavy metals and viruses, and can effectively filter out these bacterial contaminants. Only water molecules are retained to ensure that the water is pure and free of impurities.
2. Remove scale and long service life
Due to the high filtration precision of the RO reverse osmosis membrane, the calcium and magnesium ions in the water will be completely filtered out, so that no scale will be generated in the kettle when the water is boiled. Moreover, the reverse osmosis water purifier has a more durable filter element, lower maintenance cost and longer service life.

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water purifier

Why is the wastewater from the RO water purifier drainable?

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Why is the wastewater from the RO water purifier drainable?

water purifier

Many people are curious as to why the reverse osmosis water purifier will discharge waste water. How does it differ from a physically filtered water purifier? What is its filtering mechanism? Today, Xiaobian will come to answer you one by one.

Why do you want to call “reverse osmosis” filtering?

When the same volume of dilute solution (such as fresh water) and concentrated solution (such as salt water) are placed on both sides of the semipermeable membrane, the solvent in the dilute solution will naturally pass through the semipermeable membrane and spontaneously flow to the side of the concentrated solution. This phenomenon is called infiltration. When the permeation reaches equilibrium, the liquid level on the concentrated solution side will be higher than the liquid level of the dilute solution, that is, a pressure difference is formed, and the pressure difference is the osmotic pressure. If a pressure greater than the osmotic pressure is applied to the concentrated solution side, the flow direction of the solvent will be opposite to the original permeation direction, and the flow from the concentrated solution to the dilute solution side begins. This process is called reverse osmosis.

Simply put, by energizing, applying pressure to the concentrated solution, changing the original direction of penetration, and realizing the countercurrent of the concentrated solution, thereby purifying the concentrated solution and producing pure water.

Why does it produce wastewater?

The core part of the pure water machine is actually a liquid concentration process during the working process. The salt content in the water increases with the flow of water through the surface of the reverse osmosis membrane, and the osmotic pressure of the water increases continuously. When the osmotic pressure is increased to the pressure of the booster pump, water cannot flow into the clean water end through the reverse osmosis membrane. The water that fails to pass this part is the wastewater generated when water is produced.

Is “waste water” really useless?

First of all, in terms of the development of the current water purification technology, basically a cup of pure water will discharge a cup of wastewater in the same way. That is to say, if your family can drink 3L of water a day, then 3L of wastewater will be discharged on this day. I feel a lot when I hear it, but when I flush the toilet, mopping the floor, washing the laundry, and brushing the bowl, the water consumption is much smaller. Moreover, the waste water is not completely useless. It has also been filtered by the first three levels of the water purifier. These waste water can be used for a long time. It is a good use to mopping the floor, flushing the toilet and washing things.

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water purifier

Is there a need to install a water purifier? Choose your own!

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Is there a need to install a water purifier? Choose your own!

water purifier

Open the faucet and look forward to receiving a cup of clean tap water. I didn’t expect it to be yellow, red, or blue. I hate to get enough rainbow-colored polluted water. Of course, this is not the most terrible. The most fear is that tap water looks clean, but it is harmful. For the masses who do not know the truth, the final result is often that the water plant is lying in silence, but the culprit has been “on the road.” There is a saying that “the secondary pollution of tap water is risky, and it is necessary to be cautious when drinking directly.” Is it so difficult to reduce the risk and drink the water with peace of mind?
Now more and more friends know about the water purification system. Is there any need to install a water purifier, score the water quality, and score the person (the subjective method).

The following is discussed in three different situations:

1, boiled water still tastes bad;

2. The water may contain heavy metals;

3. The water quality is clear and the taste is normal.

Drinking water still tastes bad

There is still bleaching water after the tap water in the house is boiled. It feels a bit awkward when drinking, and the kettle is easy to scale.
The taste of bleach is because there is residual chlorine in the water. Chlorine is added to the tap water for sterilization. After the tap water is discharged from the water plant, the secondary pollution is reduced in the long pipeline transportation to keep it fresh. Therefore, tap water must contain residual chlorine, but it is a matter of content. Only when the content is high can people feel it. Chlorine is a very water-soluble gas that evaporates when boiling. Chlorine also combines with organic matter in water to form carcinogens of trihalomethanes. Fortunately, trihalomethanes are also volatile liquids that can be removed by boiling.
The scale is high and the water feels awkward because of the high water hardness. However, the high water hardness is easy to get the disease of stone disease. At present, there is no scientific basis. The hardness of water can be reflected from the TDS value. The TDS value is the total amount of soluble solids contained in 1L of water. It can be measured by TDS (the millet has a 39 yuan). The water quality in the southern region is generally soft, and the northern region is hard. The domestic TDS is already very high at 600mg/L, but it is still far below the national drinking water standard of 1000mg/L.

In summary, the correct method of residual chlorine and high hardness of tap water to boil and drink, will not cause harm to the human body, but will lead to poor taste, affecting people’s desire to drink water, this situation is still necessary to purify, let The taste of the water is better.

Water may contain heavy metals

If you are located in an area with serious industrial pollution and worry about heavy metals in the water, the best way is to install the RO reverse osmosis water purifier with the highest filtration accuracy.
The structure of the RO reverse osmosis water purifier is very similar to that of the ultrafiltration water purifier. The biggest difference is that the RO membrane is one of the RO membranes, which is smaller than the pore size of the ultrafiltration membrane and can filter out heavy metals in the water. Calcium, magnesium and other ions theoretically only allow water molecules to pass, and the filtered water is pure (net) water, which is the highest filtration precision in current water purifiers.

Clear water and normal taste

If the tap water in the home looks pure and transparent, and the water after boiling is normal, then it is lucky to encounter tap water with good water quality.
In the past two years, the water treatment capacity of the waterworks has been continuously improved, and only the national drinking water standards can be allowed to be transported.
Therefore, the state still has certain norms and requirements for the quality of tap water, and it is not so terrible. If the mentality is good, it will be OK to boil it directly. After all, boiling water can remove most of the residual chlorine, trihalomethane, and scale, and the high temperature can also be sterilized. But to achieve this effect, boiling water is also very particular.

1. After the water is boiled, open the lid and continue to boil for about 3 minutes to allow the residual chlorine and trihalomethane to evaporate more thoroughly;

2, the water that has just been boiled should not be immediately (not because of the hot mouth), the scale has not settled, and the residual chlorine and chloroform have not completely evaporated;

3. After a period of precipitation, the water near the scale of the bottom of the pot is drained and try not to drink.

If you always doubt the quality of tap water and always worry about any invisible harmful substances, the most reliable treatment is the same as the heavy metal above. It is safer to install RO reverse osmosis.
With the improvement of people’s living standards, many people have bought water purifiers. Reverse osmosis water purifier, ultrafiltration water purifier, kitchen water purifier, whole house water purifier… different names, different uses. In short, a water purifier can be used as long as it can be used.
In summary, the insider’s suggestion is to decide whether to install or not according to the living environment. If your city does not pollute the green mountains and green waters, you can do it without it; but if your city has industrial pollution, the factory exhausts the sewage. More, then install! But be sure to pay attention to the good brand that has a good reputation. The filter has to be changed frequently, don’t save money and be lazy!

What do you think, will you choose to install a water purifier?

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