Membrane element

Brackish water. High rejection elements. Membrane material: Composite polyamide Design: Spiral wound Dimensions: A, mm - 1016 B, mm - 200.1 C, mm - 28.6 Specification Flux, GPD: 10 300 Rejection, % (normal/minimal): 99.7 / 99.5 Area, m2 (ft2): 35 (375) Spacer, mil: 34 TEST CONDITIONS: NaCl test solution 1500 mg/l, P=1,55 MPa, T=25C, pH=7,5. Permeate recovery rate is 15%. Flux of each element in a batch may vary +25%/ -15% 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: 1,2-2,0 Maximum operation pressure, MPa: 4,1 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 1-12 Concentrate/permeate ratio on each element, min: 5:1 SDI (15 minutes test), max : 5 Turbidity, NTU max: 1