RO reverse osmosis membrane special customization which is good

Hello, friends, Shenzhen does not produce reverse osmosis membranes, this is not just anyone can produce, even if you produce no one will buy, now the use of reverse osmosis membrane tablets have the United States Dow, Hyde Neng, and Toray.

RO reverse osmosis membranes have a pore size of microns (nanometers).

The pore size of the reverse osmosis membrane is microns, the diameter of the bacteria is microns, the diameter of the virus is microns, and the pore size of the reverse osmosis membrane is one thousandth of that of bacteria and viruses.

Therefore, only water molecules and trace elements and minerals smaller than water molecules can pass through, while large particles such as sediment and rust are completely removed; Macromolecular substances such as bacteria and viruses are also filtered out, and the removal rate of heavy metal ions such as arsenic, lead, mercury, chromium, harmful components such as halogenated hydrocarbons and pesticides, and radioactive particles is greater than 96.

RO reverse osmosis water purifier is equipped with 5-stage filtration as standard

Grade 1, 5umpp cotton (used for scale inhibition, rust impurities, etc.);

Stage 2, granular activated carbon (for adsorption of chemicals);

Grade 3, 1umpp cotton or compressed activated carbon;

Stage 4, RO membrane (critical filter);

Stage 5, rear coconut shell activated carbon filter (for taste improvement). <

Introduction: RO reverse osmosis membrane is a kind of reverse osmosis membrane, and now reverse osmosis membrane has been involved in medical and daily fields. In medicine, the principle of RO membrane reverse osmosis is used for detoxification; In daily life, intermolecular forces are used to separate toxic substances from water, so as to ensure the domestic water supply of residents.

Next, I will introduce you to the ** of RO reverse osmosis membrane.

Conclusion: The principle of using RO reverse osmosis membrane to get drinking water is no stranger to everyone, as long as we pay careful attention, the use of RO reverse osmosis membrane is everywhere in life.

You can get it for free

The difference between ultrafiltration membrane and RO reverse osmosis membrane is that the taste is different and the cost is different.

1. The taste is different.

In terms of taste alone, RO reverse osmosis membranes are absolutely the winner. Although the ultrafiltration membrane water purifier also claims to be able to produce pure water, it can feel obvious hardness and astringency after entering the mouth. If you make tea or coffee, the difference in water quality between the two will be more obvious.

The tea leaves brewed with RO reverse osmosis membrane will make the tea soup clearer; The color of the tea brewed by the ultrafiltration membrane will be dark. For example, the mu hu fruit RO reverse osmosis membrane tea is bright yellow, and the ultrafiltration membrane is probably caramel color.

2. The cost is different.

The biggest problem facing RO reverse osmosis membranes is the cost of use, not to mention anything else, take a little water fee as an example. At present, the RO reverse osmosis membrane water purifiers on the market all need to discharge wastewater, and the wastewater ratio is often 2:1.

To produce 1 L of pure water, 2 L of sewage needs to be thrown away, and a total of 3 L of water is consumed.

RO reverse osmosis membrane water purifier selection points

Owners must look at the qualification certificate of RO reverse osmosis water purifier when purchasing, and the product qualification certification must have wading product approvals, the United States has NSF identification, it must be accurate to whether there is a certain model, you can log on to the NSF official website, select the query type or log in the company name, so that you can determine the authenticity of a certain model of RO reverse osmosis water purifier.

In addition to looking at the qualification certificate of RO reverse osmosis water purifier, we should also pay attention to its water purification value, try to buy 1 level or leading value for water purification value, water-saving water purification rate must be greater than 55%, and the water purification rate is 35%, which is equivalent to buying a "waste water machine", which is not only a waste of money, but also a waste of resources. RO membrane is the heart of the reverse osmosis water purifier, the pore size should be selected as much as possible in microns, bacteria, viruses and heavy metals are all eliminated, and Songzhen can be detected with a TDS pen when purchasing, and the TDS value cannot be greater than 50.

Water purifiers can be divided into three types: ultrafiltration, nanofiltration and reverse osmosis, and their differences are mainly reflected in the filtration accuracy, scope of application and **.

1. The filtration accuracy is different. The filtration accuracy of ultrafiltration membranes is generally between microns and 1 micron, which can remove harmful substances such as sediment, rust, and large particles of impurities in water, but cannot remove bacteria, viruses and other microorganisms. The reverse osmosis membrane filtration precision is microns, the good and bad will all be filtered, and after filtration, it is completely pure water, which can be directly drunk.

2. The scope of application is different. Ultrafiltration membranes can work at high pressures and can remove dissolved salts, colloidal substances, organic matter and various impurities in water, but cannot remove microorganisms such as bacteria and peestrovirus. The reverse osmosis membrane can work at room temperature and has a wide range of applications, suitable for families, hospitals, enterprises and other places that require high water quality.

3. Do not dismantle and grind hands. According to the different filtration accuracy and scope of application, the ** of ultrafiltration water purifier is generally less than 300 yuan, while the ** of nanofiltration membrane and reverse osmosis water purifier is usually more than 1000 yuan.

For safe water, RO reverse osmosis water purifier is preferred.

The diameter of the micropores on the surface of RO reverse osmosis membrane is generally between, which is one millionth (micron) of a human hair, which is generally invisible to the naked eye, and bacteria and viruses are 5000 times that of it, so only water molecules and some mineral ions can pass through (the ions that pass through have no beneficial or loss orientation), and other impurities and heavy metals are discharged from the wastewater pipe.

The pore size of the RO reverse osmosis membrane is as small as nanometers, and under a certain pressure, water molecules can pass through the RO reverse osmosis membrane, while the inorganic salts, heavy metal ions, organic matter, colloids, bacteria, viruses and other impurities in the source water cannot pass through the RO reverse osmosis membrane, so that the permeable pure water and the impermeable concentrated water are strictly distinguished.

As one of the filtration devices for purification of pure water equipment, RO reverse osmosis membrane plays a central role in the filtration of tap water to clean water. RO reverse osmosis membrane can effectively remove calcium, magnesium, bacteria, organic matter, inorganic matter, metal ions and radioactive substances in water, and the crystal purified by the device is crystal clear, sweet and glycol. The device is suitable for drinking water purification in households, hotels, hospitals and other enterprises and institutions.

To buy a water purifier, you should choose the best brand, Angel water purifier is good, Angel's original long-term reverse osmosis membrane, compared with the originator of the RO membrane, Dow filter element:

Better results: up to 5 years of service life with no attenuation of filtration effect.

Better material: Liquid silicone coating material, baby food grade material.

Moreover, the long-lasting reverse osmosis filter element has broken the monopoly of foreign technology and has been certified by six authoritative authorities in the world. Angel invested 100 million yuan for 2 years, and more than 200 scientific research experts team developed, breaking the situation that the membrane element in the water purification industry has been monopolized overseas for a long time (Dow filter element), and it is also the first "Chinese core" in the real sense of the water purification industry, and has obtained the world's top ten innovation patents.

Reverse osmosis membrane is actually RO membrane, but the name is different, and some people call it RO reverse osmosis membrane.

Reverse osmosis membrane RO membrane is the core element to achieve reverse osmosis, which is an artificial semipermeable membrane made of simulated biological semipermeable membrane with certain characteristics. It is generally made of polymer materials. Such as cellulose acetate film, aromatic polyhydrazide film, aromatic polyamide film.

The diameter of the surface pores is generally between, and the magnitude of permeability is related to the chemical structure of the membrane itself. Some polymer materials have good repulsion to salt, but the permeability of water is not good. Some polymer materials have more hydrophilic groups in their chemical structures, so the permeability of water is relatively fast.

Therefore, a satisfactory reverse osmosis membrane should have an appropriate permeability or desalination rate.

RO membrane reverse osmosis membrane**.

It should have an efficient desalination rate at high flow rates;

It has high mechanical strength and service life;

Ability to function at lower operating pressures;

Resistant to the effects of chemical or biochemical effects;

It is less affected by pH value, temperature and other factors;

The film raw materials are easy, easy to process, and low cost.

There are two types of structures of reverse osmosis membranes: asymmetrical membranes and homogeneous membranes.

The membrane materials currently used are mainly cellulose acetate and aromatic polyamides. Its components are hollow fiber, roll, plate and frame and tube. It can be used for separation, concentration, purification and other chemical unit operations, mainly used in pure water preparation and water treatment industry.

There are three main differences:

1.The two types of membrane water supply are not used for the same purpose.

Reverse osmosis membrane is mainly used for household drinking water, with the continuous improvement of reverse osmosis technology, reverse osmosis water supply has been able to meet the amount of water used in the whole kitchen. The ultrafiltration membrane water supply can only be suitable for household use and washing purposes.

2.The standards for the two membranes are different.

Reverse osmosis membranes have higher standards. The qualification standard for ultrafiltration membranes is 100 colonies per milliliter of water, while RO reverse osmosis membranes are 20 colonies per milliliter of water. It can be said that the standard of RO reverse osmosis membrane is four times higher than that of ultrafiltration membrane.

3.The pore sizes of the two membranes differ greatly.

The pore size of RO reverse osmosis membrane is only 1 100 of the pore size of ultrafiltration membrane, so reverse osmosis membrane can remove very small organic molecular pollution in water, such as chemical organic matter, organic pesticide pollution, etc. Ultrafiltration membranes, on the other hand, cannot. Reverse osmosis membranes also have the effect of softening water quality, turning hard water into soft water.

Why does it seem that compared with RO reverse osmosis membranes, ultrafiltration membranes have no advantages at all? This is not entirely the case. The ultrafiltration membrane also has its advantages, the ultrafiltration membrane does not need to be connected to electricity, so there is no electrical safety problem, and the joint is small and simple, and the probability of failure and water leakage is low.

Low cost, **cheap. It is an economical filter membrane. Therefore, ultrafiltration water purifiers are also much cheaper than RO reverse osmosis water purifiers.

The above is the difference between ultrafiltration membrane and RO membrane, is there a new understanding! But no matter what the difference between the two types of machines is, after-sales maintenance is indispensable, we must maintain them in a timely manner in order to extend the service life of the machine, so as a water purifier business, you need to choose a professional water purifier after-sales service provider platform is particularly important, and Hanott is the leader in this industry, hand it over to him, you can rest assured!

Reverse osmosis membrane, also known as reverse osmosis membrane or RO membrane, reverse osmosis membrane is the core main component to achieve reverse osmosis, which is generally made of polymer materials. It is a kind of simulated biological semipermeable membrane with certain characteristics, and the artificial semipermeable membrane is an artificial semipermeable membrane.

Main Differences Between Ultrafiltration Membrane and Reverse Osmosis Membrane:

Ultrafiltration membrane is a pressure-active membrane that removes colloids, particles and substances with high relative mass in water. Like reverse osmosis, a pressurized solution passes through a membrane under pressure, which is designed to remove molecules of a certain size.

The pore structure of an ultrafiltration membrane differs from that of a reverse osmosis membrane in that it allows salts and other electrolytes to pass through, while colloids and substances with relatively large molecular masses cannot pass through. Reverse osmosis membranes prevent salt and other electrolytes from passing through.

Due to the low osmotic pressure of colloidal substances and substances with large relative molecular mass, the pressure required for ultrafiltration is lower than that of reverse osmosis, and the pressure used in general is. The maximum is not exceeded.

Although the pressure of ultrafiltration is low, all membranes are relatively thick. Take, for example, hollow fiber membranes. Membranes for reverse osmosis cannot be backwashed; Membranes for ultrafiltration can be cleaned ineffectively by backwashing to maintain a high flow rate.

The difference between the accuracy of ultrafiltration membrane and reverse osmosis membrane:

Ultrafiltration membranes:

UF can intercept particles and impurities between microns, UF membranes allow small molecules and dissolved solids (inorganic salts) to pass through, but will effectively block colloids, proteins, microorganisms and macromolecular organic matter, used to characterize UF membranes The cleavage molecular weight is generally between 1,000 and 100,000, and the operating pressure on both sides of the RO membrane is generally.

Reverse osmosis membrane:

RO is the most sophisticated membrane liquid separation technology, which can block all dissolved salts and organic matter with a molecular weight greater than 100, but allows water molecules to permeate, the desalination rate of cellulose acetate RO membrane can generally be greater than 95%, and the desalination rate of RO composite membrane is generally greater than 98%. They are widely used in seawater and bitter water desalination, boiler feedwater, industrial pure water and electronic grade ultrapure water preparation, drinking pure water production, wastewater treatment and special separation and other processes, the use of RO before ion exchange can greatly reduce operating costs and wastewater discharge. The operating pressure of the RO membrane is generally greater than 5 bar when the inlet water is brackish water, and less than 84 bar when the inlet water is seawater.

Reverse osmosis membrane (RO): It is the finest membrane separation product, which can effectively retain all dissolved salts and organic matter with a molecular weight greater than 100, while allowing water molecules to pass through. Reverse osmosis membranes are widely used in seawater and brackish water desalination, boiler make-up water, industrial pure water and electronic grade high-purity water preparation, drinking pure water production, wastewater treatment and special separation processes.

Ultrafiltration membrane: can be retained.

microns between macromolecular substances and proteins. Ultrafiltration membranes allow the passage of small molecule substances and dissolved solids (inorganic salts), while colloids, proteins, microorganisms and macromolecular organic matter will be intercepted, and the cleavage molecular weight range used to represent the pore size of ultrafiltration membranes is generally between 1000-500000.