Ultrafiltration system

I.The basic principle of ultrafiltration equipment

　　UltrafiltrationIt is a pressurized membrane separation technology. That is, under a certain pressure, small molecule solutes and solvents pass through a specially designed membrane with a certain pore size, while large molecule solutes cannot pass through and remain on one side of the membrane, thereby partially purifying large molecule substances. The principle of ultrafiltration is also a principle of membrane separation process. Ultrafiltration utilizes a pressure-active membrane driven by an external force(Pressure)The separation process in which colloids, particles and substances with relatively high molecular weights in water are retained under the action, while water and small solute particles pass through the membrane. The molecular weight that can be retained through micro-pore screening on the membrane surface is3x10000-1x10000The substance. When the treated water passes through the membrane surface at a certain flow rate under the action of external pressure, the water molecules and molecular weight are less than300-500The solute passes through the membrane, while particles and macromolecules larger than the membrane pores are retained due to sieving, thus purifying the water.

　　That is to say, when water passes throughUltrafiltration membraneAfterwards, most of the colloidal silicon contained in the water can be removed, and at the same time, a large amount of organic matter and other substances can be removed.

Ii.The basic characteristics of ultrafiltration equipment

　　Ultrafiltration technology is a high-tech widely used in the fields of water purification, solution separation and concentration, as well as the extraction of useful substances from wastewater and the reuse of wastewater. The features are simple operation process, no need for heating, energy saving, low-pressure operation and small floor space of the device.