Definition of nanofiltration film 8040
 

· 8040 nanofiltration film: refers to a roll nanofiltration film with a membrane component size of 8 inches (about 20.32 cm) in diameter and 40 inches (approximately 101.6 cm) in long length, which is widely used in industrial water treatment and high-precision separation.

· Core characteristics: The pore size ranges from 1 to 10 nanometers, selectively holds divalent and above ions and organic matter (molecular weight of 200 to 400), while allowing partial divalent ions (such as Na +, K +) to pass through.

 

How it works and technical advantages
 

Separation mechanism
 

· Screening effect: physical blocking of particles, colloids and macromolecular organisms that are larger than pores.
· Electrostatic repulsion: The surface of the membrane is charged and has a high retention rate for divalent and above ions (such as Ca2 +, Mg +, SO42 −), while the retention rate is lower (20-80%) for one-valent ions (like Na +).
· Miscurrent filtration: Using an internal pressure or an external pressure structure, the surface pollution of the membrane is reduced through high flow speed.
 

Technical advantages
· Selective desalination: The retention of beneficial minerals (such as calcium and magnesium) is suitable for municipal water softening.
· Energy saving and environmental protection: The operating pressure is low, and the energy consumption is reduced by 30-50% compared to reverse osmosis.
· Pollution resistance: The three-layer composite structure and built-in flow control technology reduce the risk of pollution.
· Chemical resistance: ceramic films are resistant to strong acids, strong alkalis and organic solvents, and are suitable for demanding environments.
 
Buying Advice
1. Determine the need: Choose the model based on the water quality (e.g. hardness, salinity), the amount of treatment, and the effluent requirements.
2. Vendor evaluation: Priority is given to companies with proven case cases and excellent after-sales service (e.g. Wharton Technology).
3. Cost-effectiveness: Considering the initial investment and long-term operating costs, the cost-effectiveness of domestic films is significant.
4. Policy compliance: Ensure that products comply with local environmental standards (e.g. China's Standard for Living and Drinking Water Sanitation).
 

Through the above analysis, the 8040 nanofiltration film has become a core solution in the field of industrial water treatment and high-precision separation thanks to its selective separation, energy saving and environmental protection, and extensive adaptability.

(The above is taken from the Internet for informational purposes only. Please consult the engineer for specifics.)）