RO Membrane – Ideal for Industrial Reverse Water Treatment, Pure Water Machine & Universal Filter Cartridges

Industrial Reverse Osmosis Membranes: The Heart of Reverse Osmosis Technology

1. The Core Mechanism of Industrial Reverse Osmosis ro Membrane

Industrial reverse osmosis membrane stands as the very core of reverse osmosis technology. Specifically, it capitalizes on the selective permeability of the semi – permeable membrane along with pressure, in order to separate and purify solutions.

Under pressure, water molecules within a solution manage to pass through the semi – permeable (reverse osmosis) membrane. At the same time, we can trap various solutes such as inorganic salts, heavy metal ions, organic matter, colloids, bacteria, and viruses on one side of the membrane. Significantly, the reverse osmosis membrane features nanometer – sized pores (where 1 nanometer = 10⁻⁹ meters), thereby ensuring a high level of separation efficiency and accuracy.

2. Diverse Application Areas of Industrial Reverse Osmosis ro Membrane

2.1 Food and Beverage Industry: Ensuring Quality and Taste

Food and Beverage Industry: Firstly, in the food and beverage industry, we make use of industrial reverse osmosis membranes for water treatment during production. For instance, when it comes to beer, beverages, and mineral water production, these membranes play a crucial role in removing impurities, organic matter, microorganisms, and minerals from water. As a result, this ensures the quality and taste of food and beverages.

2.2 Power Industry: Boosting Power Generation Efficiency

Power Industry: Secondly, in thermal and nuclear power plants, we apply these membranes. By doing so, they are able to remove ions and impurities from water, which in turn reduces water hardness. Consequently, this meets the requirements of boiler water in power plants and boosts power generation efficiency.

2.3 Pharmaceutical Industry: Guaranteeing Drug Quality and Safety

Pharmaceutical Industry: Thirdly, in the pharmaceutical industry, we utilize industrial reverse osmosis membranes for the treatment of water used in drug – production and for injection. Through this process, they can effectively remove microorganisms, bacteria, and pyrogens from water. Therefore, this ensures drug quality and safety.

2.4 Environmental Protection Industry: Solving Global Water – related Challenges

Environmental Protection Industry: Finally, in the environmental protection industry, we use reverse osmosis membranes for sewage treatment and seawater desalination. In this regard, the technology can remove organic matter, heavy metals, and harmful substances from wastewater, thus purifying it. Additionally, it has the capacity to desalinate seawater into usable freshwater, thereby solving the problem of global water scarcity.

RO Membrane – Ideal for Industrial Reverse Water Treatment, Pure Water Machine & Universal Filter Cartridges

Schematic diagram of the structure and dimensions of reverse osmosis membrane components

The performance parameters of industrial reverse osmosis RO membranes mainly include the following aspects:

1. Desalination Rate

– It refers to the ability of the membrane element to remove solutes such as salts in water, usually expressed as a percentage.

– For general industrial reverse osmosis RO membrane, the desalination rate is between 95% and 99%. High-performance seawater desalination RO membranes can even reach over 99.8%.

2. Water Flux

– Also known as water permeability, it represents the amount of water passing through a unit area of the membrane per unit time, with units such as gpd (gallons per day) or m³/d (cubic meters per day).

– The water flux of domestic RO membranes is generally 50 – 100 gpd, while that of large industrial RO membrane elements can reach thousands of gpd or even higher.

3. Operating Pressure

– It is the driving force that enables water to pass through the RO membrane for separation.

– For brackish water desalination RO membranes, the operating pressure is generally 100 – 200 psi (pounds per square inch). Seawater desalination RO membranes require higher operating pressure, usually around 800 – 1200 psi.

4. Recovery Rate

– It is the ratio of the amount of product water to the amount of feed water, expressed as a percentage.

– Generally, it is around 75%. In well-designed systems, the recovery rate can be appropriately increased, but an excessively high recovery rate may lead to aggravated concentration polarization on the membrane surface, affecting the membrane’s performance and service life.

5. pH Tolerance Range

– It represents the range of pH values of the water that the RO membrane can withstand.

– For example, some membranes have good chemical stability in the pH range of 2 – 12.

6. Temperature Range

– It refers to the range of temperatures at which the RO membrane can operate effectively.

– Common RO membranes can generally be used in the temperature range of 4°C – 45°C.

7. Salt Passage Rate

– It indicates the percentage of dissolved salt that passes through the membrane.

– It is inversely related to the desalination rate, and a lower salt passage rate means a higher desalination rate.

8. Membrane Life

– It refers to the length of time that the RO membrane can maintain its performance under normal operating conditions.

– Usually, with proper operation and maintenance, industrial RO membranes can have a service life of 3 – 5 years or even longer.

9. Resistance to Fouling and Contamination

– It reflects the membrane’s ability to resist the adhesion and deposition of impurities such as organic matter, microorganisms, and colloids on its surface. Membranes with strong anti-fouling properties can reduce the frequency of cleaning and maintenance, and prolong the service life of the membrane.

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