Alkaline-Resistant Nanofiltration: NF Series: Alkalistab NF-8040
Alkalistab series nanofiltration membrane elements are suitable for the treatment of pH 5-14 and the extreme feed solution which is not suitable for been described by pH Value. The membrane elements can keep stable separation performance in 20% (ω/%) NaOH, KOH and other strong alkaline solutions, with the unique patent membrane Combined process and highpermeate flow design, it will bring both economic and environmental benefits for the user.
Purification and recovery of Alkali solutions, for example: recovery of Alkali solutions in viscose and paper industries.
Membrane Specification
Vontron Alkalistab NF-8040 Membrane Element
Model Dimension: 40" (1016mm) x 8" (201mm)
Active Membrane Area ft² (m² ): 350 (32.6)
Permeate Flow GPD(m³/d): 3600 (13.6)
Stable Rejection Rate%: 97.0
Feed Spacer Thickness mil: Customizable
Test Condition
Operating pressure at 110 psi (0.76Pa)
Temperature at 25°C
Tested in 2000 mg/L NaCL solution
pH 7.0 ± 0.5
Recovery rate at 15%