What are the advantages of reverse osmosis water treatment equipment?

Reverse osmosis water treatment equipment can filter out bacteria, viruses, heavy metals, pesticides, organic matter, minerals and discoloration and odor in the water, and is a kind of pure water, which can be drunk without heating. The cost of the water it filters out is low. The pure water produced is of high quality and has excellent hygiene indicators.

The reverse osmosis pure water unit has the advantages of long-term uninterrupted work, high degree of automation, convenient operation, long-term stable effluent quality, no pollutant discharge, and low cost of pure water production. pan light release. The pretreatment system of reverse osmosis water treatment equipment usually consists of a polypropylene fiber (PP) filter and an activated carbon (AC) filter.

For raw water with high hardness, it is also necessary to install a softening resin filter. The PP filter element can efficiently remove pollutants such as mechanical particle impurities, rust and large colloids in the raw water of more than 5 m, protect the filter, and is characterized by large dirt holding capacity and low cost. The AC activated carbon filter element can efficiently adsorb residual chlorine and some organic matter and colloids in the raw water, and protect the polyamide reverse osmosis composite membrane from residual chlorine oxidation.

The softening resin can remove most of the calcium and magnesium ions in the raw water, prevent the subsequent RO film surface from scaling and clogging, and improve the water rate.

The following is the introduction of reverse osmosis, if there is anything unclear, you can search for Lightride water treatment, we ** have a lot of technology about this for those in need for reference! The principle and characteristics of reverse osmosis are such a phenomenon, 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 semi-permeable membrane, the solvent in the dilute solution will naturally flow through the semi-permeable membrane to the side of the concentrated solution, this phenomenon is called osmosis. When osmosis reaches equilibrium, the liquid level on the side of the concentrated solution will be a certain height higher than the liquid level of the dilute solution, that is, a pressure difference will be formed, which is the osmotic pressure.

The magnitude of osmotic pressure depends on the intrinsic properties of the solution, i.e., it is related to the type, concentration and temperature of the concentrated solution and not to the properties of the semi-permeable membrane.

If a pressure greater than osmotic pressure is applied on one side of the concentrated solution, the solvent will flow in the opposite direction to the original permeation direction, and begin to flow from the concentrated solution to the dilute solution side, a process called reverse osmosis. This technology is currently internationally recognized as a high-tech technology, through the action of external pressure to make the solvent in the solution through the semi-permeable membrane and retain some solutes. Reverse osmosis is a kind of reverse migration movement of osmosis, which is a separation method that separates the solute from the solvent in the solution with the help of selective interception of a semi-permeable membrane under pressure driving, and its pore size is about 5 10a.

It has been widely used in the purification and concentration of various liquids, the most common application example is in the water treatment equipment process, the reverse osmosis technology can be used to remove inorganic ions, bacteria, viruses, organic matter and colloids and other impurities in the raw water to obtain high-quality pure water. At present, the most widely used is the spiral polyamide composite membrane, whose water flux and removal rate will be affected by pressure, temperature, ** rate, inlet water salt content and pH value. Technical DescriptionReverse osmosis technology is one of the most advanced and energy-efficient separation technologies available today.

The separation characteristics of reverse osmosis can effectively remove dissolved salts, colloids, organic matter, bacteria and other impurities in water, with low energy consumption, no pollution and advanced technology.

Reverse osmosis water treatment equipment, the selection of accessories from famous foreign manufacturers, the use of multi-stage pre-filtration, reverse osmosis, nuclear grade mixed bed resin purification, dual-wavelength ultraviolet digestion and other foreign advanced treatment technology and the company's unique process design, to ensure the excellent performance and stability of the product. The original reverse osmosis water treatment equipment used is usually composed of three parts: raw water pretreatment system, reverse osmosis purification system and ultra-purification post-treatment system. The purpose of pretreatment is mainly to make the raw water meet the inlet requirements of the reverse osmosis membrane separation module and ensure the stable operation of the reverse osmosis purification system.

Reverse osmosis membrane systems are the most cost-effective purification method for removing more than 98% of ions, organics, and (theoretically) 100% of microorganisms from raw water in one go. The ultra-purification post-treatment system further removes the remaining trace ions, organic matter and other impurities in the reverse osmosis pure water through a variety of integrated technologies to meet the final water quality index requirements of different uses.

Reverse osmosis process is one of the most used technologies in water treatment, which is used in many industries, and different process preparation equipment can be designed according to different water quality and different water requirements. Reverse osmosis is mainly used in the preparation of pure water and high-purity water, and is widely used in drinking, chemical, electronics, electroplating, wine, beverage, food and other industries, and is also a precision process in water treatment equipment.

Compared with other processes, the advantages of reverse osmosis are mainly reflected in the following aspects:

Continuous operation, the product water quality is stable. There is no need to regenerate with acid and alkali. Saves water for backflushing and cleaning.

The desalination rate of the system is relatively high, which can reach 98%. The production wastewater is free of any pollution and can be discharged with confidence. The design of the equipment is relatively compact, which effectively reduces the floor area of the workshop.

It is safe and reliable to use, and avoids workers from being exposed to acid and alkali. There is no need for manual long-term operation, which saves manpower. The cost of operation and maintenance is relatively low.

The installation and commissioning are relatively simple, and they are relatively easy to operate.

The reverse osmosis process used in water treatment equipment is relatively mature and widely accepted by consumers, and the effluent quality is better than all other processes.

Abstract:Reverse osmosis water treatment cavity equipment is usually composed of three parts: raw water pretreatment system, reverse osmosis purification system and ultra-purification post-treatment system. Reverse osmosis water treatment equipment is widely used in electric power industry, electronics industry, food industry, pharmaceutical industry, beverage industry, chemical industry and other fields.

So what are the advantages of this device? In addition to simple operation, easy to achieve automation, and labor saving, it also has the advantages of compact structure and small footprint, thereby reducing costs. Let's take a look at the relevant knowledge below.

Application areas of reverse osmosis water treatment equipment.

1. Electric power industry: boiler make-up water, cooling dam.

2. Electronics industry: ultra-pure water in the semiconductor industry, integrated circuit cleaning water, formula water.

3. Food industry: formula water, production water.

4. Pharmaceutical industry: process water, preparation water, washing water, water for injection, sterile water preparation.

5. Beverage industry: formula water, production water, washing water.

6. Chemical industry: production water and wastewater treatment.

7. Drinking water engineering: ultrapure water preparation, drinking water purification.

8. Petrochemical industry: advanced treatment of oilfield injection water and petrochemical wastewater.

9. Seawater desalination: production and domestic water in island areas, coastal water-scarce areas, ships, seawater oil fields, etc.

10. Environmental protection field: the highest quality of precious metals and water in electroplating rinsing water, to achieve zero emission or micro-discharge.

Advantages of reverse osmosis water treatment equipment system.

1. Fresh water can be extracted from seawater or brackish water.

2. It is easy to remove organic matter, bacteria, colloids and other impurities dissolved in water to obtain high-purity water.

3. Because the reverse osmosis process is a physical process of ulnar limb, there is no phase change, so it is energy-saving.

4. Simple operation, easy to realize automation, and save labor.

5. Compact structure and small footprint, thereby reducing costs.

6. As a concentration method, it can dissolve valuable ingredients in solution.

How to clean and maintain reverse osmosis water treatment equipment.

**Cleaning refers to the cleaning of the reverse osmosis device as a whole, and the membrane element does not need to take out the pressure vessel, which is usually designed and used in larger systems. This cleaning method is simple and convenient to operate, and the time is short, but it is easy to cause incomplete cleaning and unsatisfactory effect. This method can be used when the reverse osmosis unit is less polluting.

2. Offline cleaning.

Off-line cleaning refers to the removal of membrane elements from the reverse osmosis pressure vessel and loading them into special cleaning equipment for cleaning, usually the number of cleaning at a time does not exceed 6. This cleaning method is simple and convenient to operate, and the cleaning is thorough and effective. However, when there are many membrane elements, the cleaning time is longer.

3. EDI cleaning.

As the working time accumulates, the EDI modules need to be cleaned and disinfected because:

1. Hardness or metal scaling, mainly produced in the concentrated water chamber.

2. Inorganic dirt is formed in ion exchange resin or membrane.

3. Formation of organic dirt in ion exchange resin or membrane.

4. Biofouling of EDI modules and system pipes and other components.

Reverse osmosis water treatment equipment includes Haier water purifier, 3M water purifier, Midea water purifier, etc.

1. Haier water purifier

Haier Water Purifier **** has an independent large-scale professional water purifier factory, and its production capacity is ahead of other domestic water purifier manufacturers. Relying on Jinbi's large-scale production capacity and the good reputation of the water purifier market accumulated over the years, Haier water purifier has quickly won the favor of the public.

m Water purifier

With a strong liquid filtration technology platform and more than 90 years of liquid filtration experience, 3M is a liquid filtration company that spans the industrial, medical, food and beverage, and drinking water industries.

3. Midea water purifier

Midea is a well-known brand of white goods in China, and Midea is one of the top ten brands of home appliances. This business involves the entire field of household appliances. Midea's products include refrigerators, washing machines, microwave ovens, induction cookers, air and so on.

Later, Midea fully entered the water purification equipment industry. With sales, Midea ranks among the top ten brands of Peisheng Yu water purifiers.

Attention should be paid to the use of reverse osmosis water purifier:

1. The pH value of water.

When the equipment is running, it is necessary to pay attention to the pH value change of water quality, the reason for this is that the hydrolysis of the cellulose acetate membrane will affect the performance of the device, and the pH value of the feed water should be controlled in the range of 3 to 11.

2. The ambient temperature of the equipment.

Pay attention to the influence of ambient temperature. In the winter in the north, the temperature decreases, the raw water temperature decreases, there may be low water production, the water production is not up to standard, if the equipment continues to run, you should remember to heat the equipment to prevent the pipeline from freezing and cracking; If it doesn't work in winter, remove the reverse osmosis membrane and put it indoors to prevent freezing.

3. Pressure. Pay attention to the continuous operation of the high-pressure pump. The reverse osmosis inlet pressure should be maintained with a proper margin, otherwise the desalination rate will be reduced due to the lack of compaction. When the reverse osmosis device is stopped, the water in the reverse osmosis device should be replaced with low-pressure feed water.

The above content reference: Encyclopedia Group of Beauty.

The above content reference: Encyclopedia Haier.

Advantages of reverse osmosis equipment:

The structure is reasonable, the equipment runs stably, and the structure of the small membranes used by traditional merchants is changed in series or parallel.

The appearance is generous, beautiful, elegant and upright. It is suitable for all occasions, especially when it matters most.

Single-stage reverse osmosis and high-pressure pumps are used to achieve long-term stable operation.

Fully automated control, without special personnel guarding, saves manpower and material resources.

The amount of water produced is large, and the quality of the effluent is relatively stable.

It is easy to install, easy to operate, and easy to maintain.

Low noise, high energy, low consumption.

1. Reverse osmosis is a physical desalination method, which has other different advantages in many aspects.

2. Operate at room temperature and use the physical method without phase change to desalinate and purify the saline feed water. At present, a single reverse osmosis membrane element is as high as more than 98%, and can remove colloids, organic matter, bacteria, viruses, etc. in water at the same time.

3. With water pressure as the driving force, the energy consumption is the lowest among many treatment methods.

4. No need for a large number of chemical treatment, no chemical waste liquid discharge, no environmental pollution.

5. The ** rate is high, up to more than 70%.

6. High degree of automation, automatic shutdown in case of failure, with automatic protection function.

7. It can run continuously to produce water, the system is simple, the operation is convenient, and the water quality is stable.

8. The equipment occupies a small area, compact structure, reliable operation, high water quality and many advantages.

(1) The desalination rate of the reverse osmosis equipment is high, the desalination rate of a single membrane can reach 99%, the desalination rate of the first-stage reverse osmosis system can generally be stabilized at more than 90%, and the desalination rate of the second-stage reverse osmosis system can be stabilized at more than 98%.

2) Because the reverse osmosis equipment can effectively remove microorganisms, organic matter and inorganic substances such as iron and silicon, the effluent quality is much better than other methods.

3) Compared with ion exchange pure water, it reduces the cost of chemicals consumed by resin regeneration, labor costs, wastewater treatment costs due to regeneration, and reduces environmental pollution.

4) It slows down the change of produced water quality caused by the fluctuation of raw water quality, which is conducive to the stability of water quality in production, which has a positive effect on the stability of desalinated water product quality.

5) After setting up the reverse osmosis equipment, the burden of the terminal microporous membrane filter is greatly reduced, thereby prolonging the life of the terminal microporous membrane filter.

Categories: Science & Engineering >> Engineering & Technology.

Analysis: Osmosis and reverse osmosis is a physical phenomenon, water containing salt has a natural osmotic pressure, when the saline water (raw water) and pure water are separated by a semi-permeable membrane with a micropore diameter of 1/10,000 microns, the pure water will enter the raw water side through the semi-permeable membrane due to the effect of osmotic pressure. On the contrary, if a pressure higher than the osmotic pressure is applied on the raw water side, the molecules in the raw water will enter the pure water side through the semi-permeable membrane, but the salt, fine impurities, organic matter and other components in the raw water cannot enter the pure water side, which is reverse osmosis.

Based on this principle, people invented reverse osmosis membrane and reverse osmosis technology, and used their spring slag for water treatment.

Application of reverse osmosis technology Reverse osmosis technology can be used for brackish water desalination, drinking water production, high-quality drinking water production, industrial low salt content and low hardness production water preparation, industrial pure water and high purity water preparation, industrial wastewater recycling, etc.

The main features of reverse osmosis water treatment Physical desalination, stable effluent water quality, continuous production, simple operation, low operating cost, less wastewater discharge, small footprint, wide range of applicable water quality.