Composite Reverse Osmosis membrane flatsheet series ORM

Brackish water, salt content of up to 5 g/l

Membrane material	Composite polyamide
Membrane type	ORM31K

Test conditions: test solution 1,5 g/l NaCl in water, pressure 1,6 MPa, temperature 25°С

Operating conditions and technical data for designing

Operation temperature, С¹	4-45
рН at operation¹	2-11
рН at chemical cleaning (short time operation)	1-12
SDI (15 minutes test), max	5
Turbidity, NTU max	1
Free chlorine content, mg/l max	0,1

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

Permeate flow, l/m2hr, min	Rejection, %, min
45	99.2