The working principle of nanofiltration membrane purification equipment is to achieve purification and concentration of solutions through selective separation of membrane pore size. The pore size of nanofiltration membranes is usually between 1-100 nanometers, which can filter out solute molecules and larger molecules, while smaller solvent molecules can pass through the membrane pore size, thereby achieving solute separation and purification. During operation, nanofiltration membranes allow small molecules such as water and salt to pass through, while large molecules such as proteins and polymers are intercepted.
What are the characteristics of nanofiltration membrane purification equipment?
• Economically efficient: Nanofiltration membranes have lower energy consumption and smaller equipment footprint, enabling efficient separation and purification while reducing energy and equipment investment costs.
Wide applicability: Nanofiltration membranes are suitable for multiple fields such as water treatment, biotechnology, and food processing, especially for the treatment of thermosensitive substances, and will not have adverse effects on the active ingredients in the materials.
Environmental Protection: Nanofiltration membranes operate at room temperature without phase change and do not introduce other impurities, making them suitable for green water treatment technology.
Efficient Separation: Nanofiltration membranes can effectively remove small particles such as suspended solids, colloids, bacteria, viruses, etc. from solutions, and have excellent separation effects.
Selective separation: By selecting different nanofiltration membranes, it is possible to separate solutes of different molecular sizes. Meanwhile, nanofiltration membranes can selectively retain certain specific substances as needed to achieve selective separation of solutions.
Strong controllability: The separation efficiency of nanofiltration membranes can be controlled by adjusting operating parameters such as operating pressure, flow rate, pH value, etc., which makes them widely applicable in different application fields.