What is reverse osmosis technology? What are the features?

1.Reverse osmosis technology is the most advanced and energy-efficient membrane separation technology available today. The principle is that under the action of higher than the osmotic pressure of the solution, other substances cannot pass through the semi-permeable membrane and leave these substances and water.

Because the membrane pore size of the reverse osmosis membrane is very small (only about 10 years), it can effectively remove dissolved salts, colloids, microorganisms, organic matter, etc. from water (the removal rate is as high as 97%-98%).

2.Reverse osmosis is the most widely used desalination technology in high-purity water equipment, and its separation objects are organic matter with a range of ions and molecular weights of several hundred in the solution; Reverse osmosis (RO), ultrafiltration (UF), microporous membrane filtration (MF), and electrodialysis (EDI) technologies are all examples of membrane separation technologies.

Reverse osmosis is the use of physical methods without phase change to desalinate and purify water at room temperature.

Water treatment relies solely on pressure as a driving force, and its energy consumption is low in many treatment methods.

It does not require a large number of chemicals and acid and alkali regeneration treatment.

No chemical waste liquid and waste acid and alkali discharge, no waste acid and alkali neutralization treatment process, no environmental pollution.

The system is simple, easy to operate, the product water quality is stable, and high pure water can be obtained.

It is suitable for a wide range of raw water quality, not only for the treatment of bitter water, seawater and sewage, but also for the treatment of fresh water with low salt content.

The equipment has a small footprint and requires less space.

The amount of operation and maintenance and equipment repair is extremely low.

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Reverse osmosis technology is a new technology that began to be applied in the late sixties of the last century. Reverse osmosis (RO), also known as reverse osmosis, is mainly composed of two parts: a high-pressure pump and a reverse osmosis membrane. At high enough pressure, in addition to water molecules, other minerals, organic and various ions in the water are almost all excluded from the membrane and washed out by the high-pressure water flow.

It has become an important technical equipment in the separation engineering of modern pure water, high-purity water preparation, seawater desalination, brackish water desalination and other industries. Since its establishment in the fifties, electrodialysis technology has risen rapidly in the application of engineering technology, and has played an increasingly important role in seawater desalination, brackish water desalination, seawater concentration salt production, wastewater treatment, food, medicine, electronics, electric power and other industries. With many excellent application examples, it confirms its technological advancement and several excellent characteristics that cannot be replaced by other separation methods.

Low energy consumption and significant economic benefits. It has been proven that desalination of brackish water from 2000-5000 mg l to 5000 mg l of drinking water is the most economical.

2. The system application is flexible, easy to operate and maintain, according to different conditions, different forms of system design can be flexibly adopted, parallel connection can increase water production, series connection can improve the desalination rate, circulation or partial circulation can shorten the process flow. In the process of operation, the main parameters of voltage, current, concentration, flow, pressure and temperature are controlled to ensure stable operation.

Do not pollute the environment.

Long service life. The membrane can generally be used for 3-5 years, the electrode can be used for 7-8 years, and the separator can be used for about 15 years.

High raw water rate. The rate of seawater and high concentration brackish water can reach more than 60%. Generally, the rate of brackish water can reach 65%-80%.

The principle of reverse osmosis is to apply a certain pressure to the water, so that the water isWater moleculesand ionsMineral elementsthrough a reverse osmosis membrane. And most of the water is dissolvedInorganic salts, organics, bacteria and viruses cannot pass through the reverse osmosis membrane, which strictly separates the permeable pure water from the impermeable concentrated water.

Reverse osmosis is the use of selective membranes that can only pass through water and not solutes, in order to be higher than osmotic pressure.

The process of separating water molecules from solutes in water is the driving force.

Application of reverse osmosis technology

Reverse osmosis technology is usually used for fresh water from seawater, brackish water; softening of water; Wastewater treatment, purification, concentration, separation of food, pharmaceutical industry, chemical industry, etc. In addition, reverse osmosis technology has also achieved good results in pre-desalination treatment, which can reduce the load of ion exchange resin by more than 90%, and the amount of regenerant in resin can also be reduced by 90%.

As a result, it not only saves costs, but also contributes to environmental protection. Reverse osmosis technology can also be used to remove particles, organic substances and colloids in water, which has a good effect on reducing the pollution of ion exchange resin and prolonging the service life.

The principle of reverse osmosis is a membrane separation operation that uses the pressure difference as the driving force to separate the solvent from the solution.

Reverse osmosis, also known as reverse osmosis, is a membrane separation operation that uses a pressure difference as a driving force to separate a solvent from a solution. Apply pressure to the liquid on one side of the membrane.

When the pressure exceeds its osmotic pressure, the solvent will reverse osmosis in the direction of natural osmosis. In this way, the permeable solvent, i.e., the permeate, is obtained on the low-pressure side of the membrane; The high-pressure side gets a concentrated solution, i.e., a concentrate.

Introduction to the principle of reverse osmosis:

The same volume of dilute solution such as fresh water and concentrated liquid are placed on both sides of a container, and the middle is blocked by a semi-permeable membrane, and the solvent in the dilute solution will naturally pass through the semi-permeable membrane and flow to the side of the concentrated solution, and the liquid level of the concentrated solution side will be higher than the liquid level of the dilute solution by a certain height, forming a pressure difference.

To reach the osmotic equilibrium state, this pressure difference is the osmotic pressure, and the osmotic pressure depends on the type, concentration and temperature of the concentrated liquid, and has nothing to do with the properties of the semi-permeable membrane.

If a pressure greater than osmotic pressure is applied on the side of the concentrated solution, the solvent in the concentrated solution will flow to the dilute solution, and the flow direction of the solvent is opposite to the direction of the original osmosis, this process is called reverse osmosis.

Summary. Hello dear! The difference between reverse osmosis and infiltration, reverse osmosis and osmosis are two contradictions, infiltration, is little by little to erode inward, and of course infiltration, there are good infiltration, there are also bad infiltration, general osmosis is a derogatory term, reverse osmosis is a group of anti-infiltration, especially for bad things to block out, not on it to penetrate them, one is a spear and one is a shield, so reverse osmosis and infiltration are a pair of spears and shields.

Hope it helps!

Hello dear! The difference between reverse osmosis and infiltration, reverse osmosis and osmosis are two contradictions, infiltration, is little by little to erode inward, and of course infiltration, there are good infiltration, there are also bad infiltration, general osmosis is a derogatory term, reverse osmosis is a group of anti-infiltration, especially for bad things to block out, not on it to penetrate them, one is a spear and one is a shield, so reverse osmosis and infiltration are a pair of spears and shields. Hope it helps!

My question is: What is osmosis ? What reverse osmosis technology?

Hello dear! 1. Osmosis is a physical phenomenon, when two kinds of water containing different concentrations of salts, such as separated by a semi-permeable film, it will be found that the side with less salt will seep through the membrane into the water with high salt content, and the salt contained in it does not permeate, so that the salt concentration on both sides gradually melts to the same trend, this process is called natural infiltration, referred to as osmosis. 2. Reverse osmosisReverse osmosis, also known as reverse osmosis, is a membrane separation operation that uses the pressure difference as the driving force to separate the solvent from the solution.

Because it is in the opposite direction of natural osmosis, it is called reverse osmosis. Hope it helps!

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What is Reverse Osmosis Equipment?

The characteristics of reverse osmosis technology are as follows:

Low energy consumption and significant economic benefits. The system application is flexible, easy to operate and maintain, according to different conditions, Tongchun can flexibly adopt different forms of system design, parallel connection can increase water production, series connection can improve the desalination rate, circulation or partial circulation can shorten the process. In the process of operation, the main parameters of voltage, current, concentration, flow, pressure, hail and temperature can be controlled to ensure stable operation.

Do not pollute the environment. Long service life. Membranes can generally be used for 3 to 5 years, electrodes can be used for 7 to 8 years, and separators can be used for about 15 years.

High raw water rate. The rate of seawater and high-concentration brackish water can reach more than 60%. Generally, the rate of brackish water** can reach 65% to 80%.