RO membrane introduction:

Reverse osmosis membrane is a semi-permeable filter membrane with a pore diameter of 0.1-2nm, which can remove most monovalent and divalent salt ions, and is a key component in water treatment desalination equipment. The membrane element is composed of a diaphragm, a support, a flow channel, a seal, a skin and an external interface. The membrane element is installed in the pressure vessel to form a reverse osmosis device.

At present, the most widely used composite membrane in the water treatment industry. There are 4 ", 6 ", 8 "and 8.5" membranes depending on their diameter size. According to the purpose of the membrane is divided into: seawater desalination membrane, brackish water desalination membrane, anti-pollution membrane, etc. According to the membrane material is divided into: cellulose acetate membrane, aromatic polyamide membrane.

RO membrane characteristics index:

1. Desalination rate;

2. Transmittance speed;

3. Recovery rate;

4. Oxidation resistance;

5. Pure water transmission coefficient, flow attenuation coefficient, material migration coefficient;

6. Mechanical strength;

7. Hydrolysis resistance, heat resistance and cold resistance.

Conditions of use:

1. Design pressure: 2.0MPa;

2. Design temperature: 0℃-50℃;

3. Inlet residual chlorine: ≤0.1mg/L;

4. SDI value: < 3.

Service life:

Under normal working conditions, the desalination rate is maintained at 97% for a 5 year service life.

Scope of application:

Reverse osmosis membrane is suitable for desalination of seawater, desalination of brackish water, preparation of ultra-pure water in electronics and pharmaceuticals, supply water for power plants, production of circulating water for refrigerators, treatment and recycling of all kinds of wastewater, pharmaceutical industry, beverage and food industry, etc.