Reverse Osmosis Membrane

- May 01, 2019-

Reverse osmosis membrane is the core element to realize reverse osmosis, and it is an artificial semi-permeable membrane made of simulated biological semi-permeable membrane with certain characteristics. -Made of polymer material. Such as cellulose acetate membrane, aromatic polyimide membrane, aromatic polyamide film. The diameter of the surface micropores is generally between 0.5~ 10nm, and the transmittance is related to the chemical structure of the membrane itself. Some polymer materials have good rejection of salt, and the speed of water transmittance is not good. Some polymer materials have a chemical structure with a SHOT gene, so the water transmittance speed is relatively fast.

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

Reverse Osmosis Membrane

Reverse osmosis membranes are divided into the following categories

Low voltage reverse Osmosis membrane elements Product Advantages: Stable performance, wide application areas, and high desalination rate, large water production.

Membrane components use long cycle, small equipment investment, low operating costs, improve economic efficiency.

Application of the city: suitable for surface water, groundwater, tap water and municipal water and other water sources desalination treatment, mainly used in various sizes of industrial pure water, power plant boiler recharge and other industrial water, can also be used to treat high concentrations of salt-containing wastewater, beverage water manufacturing.

Ultra low voltage Reverse osmosis membrane element Product Advantages: can achieve the same high water flux and high desalination rate as conventional low pressure film under ultra-low pressure conditions.

In order to reduce the water treatment equipment related to pumps, pipelines, containers and other materials equipment investment costs and reverse osmosis system operating costs.

Application area: Suitable for desalination of water sources such as surface water, groundwater, tap water and municipal water with salt star about 2000ppm, it is mainly used in various fields such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing industry of all sizes.

Extremely low pressure reverse osmosis membrane elements Product Advantages: Can be achieved under very low pressure conditions and conventional low-pressure film can be sample of high water flux and high desalination rate.

In order to reduce the related pumps, pipelines, containers and other equipment investment costs and reverse osmosis system operating costs.

Application area: Suitable for the treatment of low salinity water sources which do not require high desalination rate, such as surface water, groundwater, running water and municipal water with a salt content of less than 100m, especially suitable for the second stage desalination of level two reverse osmosis.

Reverse Osmosis Membrane

General household reverse osmosis membrane components Product Advantages: Extremely low operating pressure conditions to achieve the same high water flux and high desalination rate as conventional low-pressure membranes.

The operating pressure is less than 23 of the normal operating pressure of the extremely low pressure composite film, and the desalination rate can reach 97%.

Application areas: Mainly used in household pure water Machine, hospital, laboratory pure water device, used to deal with TDS low F500ppm source.

Seawater desalination Reverse Osmosis membrane element Product Advantages: More than 99.7% of the high desalination rate, strong durability, affected by external factors of small adaptability is its advantage.

Application areas: Seawater desalination, brackish water desalination.

High desalination nanofiltration membrane elements

Product Advantages: Higher salt removal rate (80,-90%, sodium oxide), high removal rate of two valence ions (>97%, magnesium sulfate), very low pressure can effectively remove organic matter, microorganisms, viruses and most salt ions in the water, pesticides, herbicides, TOC and transition metals have a good removal rate.

Applications: Widely used in the preparation of drinking water and food, medicine, bioengineering, "pollution control and other industries in a variety of separation and concentration purification process."

Reverse Osmosis Membrane

Low desalination nanofiltration membrane elements

Product Advantages: Moderate Salt removal rate (40-60%, sodium chloride), high removal rate of two valence ions (>97%, magnesium sulfate), high TOC removal rate. Application area: Partial softening of organic matter in surface water and groundwater, effectively reducing the hardness of water quality, maintaining taste and protecting pipe network.