Introduction of RO membrana de osmosis inversa and the advantages of membrana de osmosis inversa

RO reverse osmosis membrane is a semi-permeable membrane for preparing pure water in reverse osmosis process.

Generally made of polymer materials. Such as cellulose acetate film, aromatic polyhydrazide film, aromatic polyamide film. The diameter of the surface pores is generally between 0.5 and 10 nm, and the permeability is related to the chemical structure of the membrane itself. Some polymer materials have good repellency to salt, but the permeation speed of water is not good. The chemical structure of some polymer materials has more hydrophilic groups, so the permeation speed of water is relatively fast. Therefore, a satisfactory reverse osmosis membrane should have an appropriate amount of permeation or salt rejection.

The reverse osmosis membrane should have the following characteristics:

  1. it should have high-efficiency salt rejection at high flow rates;
  2. it should have high mechanical strength and service life;
  3. it can function at lower operating pressures;
  4. it can It is resistant to chemical or biochemical effects;
  5. it is less affected by factors such as pH value and temperature;
  6. the source of film-making raw materials is easy, the processing is simple, and the cost is low.

There are two types of reverse osmosis membranes: asymmetric membranes and composite membranes. The currently used membrane materials are mainly triacetate cellulose and aromatic polyamides. Its components are hollow fiber, coil, plate and frame and tubular. It can be used for chemical unit operations such as separation, concentration and purification, and is mainly used in pure water preparation and water treatment industries.

There are two types of reverse osmosis membranes: asymmetric membranes and composite membranes. The currently used membrane materials are mainly triacetate cellulose and aromatic polyamides. Its components are hollow fiber, coil, plate and frame and tubular. It can be used for chemical unit operations such as separation, concentration and purification, and is mainly used in pure water preparation and water treatment industries.

Xian CHIWATEC Water Treatment Technology es una empresa de alta tecnología especializada en varios dispositivos de procesamiento de agua. Aparte de estos productos individuales, que cubren una serie de tipos y series, también podemos ayudar con proyectos de ingeniería integrales relacionados. Gracias a nuestro arduo trabajo y dedicación desde nuestra fundación, ahora somos uno de los fabricantes de equipos de tratamiento de agua de más rápido desarrollo en el oeste de China.

Otras lecturas:

Membrana Filmtec RO bw30-365

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