Membrane element

Sea water. High rejection elements. Membrane material: Composite polyamide Design: Spiral wound Dimensions: A, mm - 1016 B, mm - 100 C, mm - 19.1 D, mm - 26.7 Specification Flux, GPD: 1 700 Rejection, % (normal/minimal): 99.75 / 99.4 Area, m2 (ft2): 8 (86) Spacer, mil: 28 TEST CONDITIONS: test solution of NaCl 32 g/l, P=5,5 MPa, T=25 C , pH=7,5, Recovery -8% Flux of each element in a batch may vary +/- 20% Nominal rejection is reached after 48 hours of continuous operation on test solution. Minimal rejection of a new element after 20 minutes test on test solution. Operating conditions: Recommended operation pressure, MPa: 4,5-6,5 Maximum operation pressure, MPa: 7 Maximum pressure drop, MPa: 0,1 Operation temperature, С: 4-45 рН at operation: 2-11 рН at chemical cleaning (short time operation) : t<45C 2-11; t<35C 1-11,5; t<25C 1-13 Concentrate/permeate ratio on each element, min: 10:1 SDI (15 minutes test), max : 5 Turbidity, NTU max: 1