Composite nanofiltration membrane flatsheet series NaRM

Application

Product description

Membrane type

NaRM

Specification

Test conditions:

1) 0,5 g/l NaCl solution in water, pressure 0,7 MPa, temperature 25°С.

2) 2,0 g/l MgSO4 solution in water, pressure 0,7 MPa, temperature 25°С.

Operating conditions and technical data for designing

Operation temperature, С¹	4-45
рН at operation¹	1-12
рН at chemical cleaning (short time operation)	1-13
Acceptable Hydrogen peroxide concentration during continuous operation, mg/l	40
Acceptable Hydrogen peroxide concentration during disinfection (not longer than 30 min, +25°C), mg/l	1000
Acceptable free Chlorine concentration during continuous operation, mg/l	1
Acceptable free Chlorine concentration during disinfection (not longer than 30 min, +25°C, pH 10,5), mg/l	5
SDI (15 minutes test), max	5
Turbidity, NTU max	1

1) During continuous operation with pH over 10 the temperature must not exceed 35°С

Property	Standartd, min
Permeate flow, l/m²hr, min 40	40
Rejection by monovalent ions (Cl-)¹, %, min	60,00
Rejection by bivalent ions (SO42-)², %, min 99,0	99,00