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Nano-Filtration

Nano-Filtration
Introduction

Nano-Filtration is a thin film with a pore size between reverse osmosis membrane and ultrafiltration membrane.The water flux is higher than that of commercial NF membrane by 30%~70%, and the energy consumption is reduced by 30~50%. With surface charge structure, it can be used to selective separation. We serves customers with adjusting the membrane according to different uses. 

 

Nano-filtration membrane element


More Information

Applications
Water treatment, softening, decolorization, concentration, selective separation, and etc.


Features

  • Removal of 99% or more of metal ions or small organic molecules such as sodium, calcium, magnesium, etc.
  • It can save more than 35-55% of high-concentration water treatment costs such as industrial wastewater and domestic sewage.

Patents

  • US 8281938
  • US 8567611
  • TW I398353

Pilot-scale nano-filtration system  


Specifications of membrane element



  1. Test conditions : 2,000 ppm MgSO4 solution, operating pressure 110 psi, temperature 25 ℃ , pH 7.5, recovery rate 15 %, test after 24 hours stabilizing .
  2. Flux of single membrane element may change within the range of -15 %  to +25 %.

Contact Wwindow

Dr. Chang, Kuei-Chien
Tel : 886-3-5732705
Fax : 886-3-5732349
E-mail : kcchang@itri.org.tw 

Technology