The Introduction of Filtration Technology of Membrane Filter
Ultrafiltration Membrane Filtration Technology (UF)
Ultrafiltration membrane (UF) is a kind of membrane process between microfiltration and nanofiltration. It uses the principle of screening to separate, and the molecular weight of organic matter can be selected from 3000 to 300000 Dalton. UF is suitable for the separation, concentration, and purification of macromolecular substances and small molecular substances.
Reverse Osmosis Technology (RO)
Permeation is a process in which water flows spontaneously from one side of dilute solution through a semi-permeable membrane to the other side of concentrated solution.
Concentrated solutions are diluted with the continuous flow of water. When the pressure generated by the flow of water to the concentrated solution is sufficient to prevent the water from flowing into the net, the infiltration is in equilibrium, that is, to achieve dynamic equilibrium.
When the external pressure is applied on the concentrated solution and the pressure is greater than the osmotic pressure, the water in the concentrated solution will overcome the osmotic pressure and flow to the dilute solution through the semi-permeable membrane, making the concentration of the concentrated solution larger. This process is the reverse process of osmosis, called reverse osmosis.