Introduction of Organic Nanofiltration Membrane Technology

Nanofiltration is a membrane separation technology between ultrafiltration and reverse osmosis. The pore size of nanofiltration membrane is between 0.5-2nm, and its separation mechanism is mainly pore size sieving and Daunan effect, which can realize inorganic salt, Selective separation of substances such as amino acids and small organics. Compared with the insufficient molecular weight cut-off accuracy of ultrafiltration membrane and the high energy consumption of reverse osmosis, nanofiltration membrane effectively makes up for the shortcomings of both, but it is still in the research and development stage, and customized design and large-scale production are difficult. In actual production and life, there are many pollution problems. At the same time, various national standards are continuously improved. Nanofiltration is favored because of its excellent separation performance and high degree of adjustment. Flow chart

Flow chart

Process advantage

1. Nanofiltration replaces reverse osmosis ,  which can reduce operating pressure, reduce energy consumption and increase treatment capacity while ensuring that the water quality meets the standard. 2. High COD, ammonia nitrogen removal rate, high long-term stability. 3. Low cleaning frequency.

Project display

Leachate treatment project of a landfill in Huainan: