Introduction to the working principle and technical characteristics of ultrafiltration membrane

FROM：本站   DATE：2025-07-14

1、 Working principle of ultrafiltration membrane:

Ultrafiltration membrane technology is a membrane permeation separation technology with a filtration capacity between nanofiltration and microfiltration. Its working principle is that when a solution passes through a semi permeable membrane, under pressure, small molecules in the solvent and solute can pass through the membrane to reach the other side of the membrane, while large molecules and colloids in the solute are intercepted due to their inability to pass through the pores of the membrane. As the solution continues to flow through, more and more substances are intercepted on the membrane.

Therefore, in order to achieve ultrafiltration, greater pressure must be applied to the solvent, and at the same time, the substances formed on the surface of the membrane also exhibit certain chemical properties, which can intercept and decompose some pollutants, thus achieving water purification.

2、 Characteristics of ultrafiltration membrane technology:

1. Ultrafiltration membranes have high chemical stability, can withstand high temperatures, acids, and alkalis, so they do not have high requirements for inlet water quality and have strong versatility.

2. The principle of ultrafiltration membrane technology is simple, easy to achieve automated operation, saves labor, and is easy to operate, maintain, and operate safely and stably.

3. Ultrafiltration membrane technology is a physical method that does not require the addition of any chemical agents during water treatment, thus effectively preventing secondary pollution of water bodies.

4. Ultrafiltration membrane technology has high efficiency and can handle large amounts of water, especially for the treatment of less polluted urban drinking water, demonstrating high work efficiency.

The performance of ultrafiltration membrane technology is constantly improving, and its application advantages in various fields are highlighted. When using ultrafiltration membranes, it is important to pay attention to the daily maintenance of membrane components, effectively extending their service life and creating higher profits for users.