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High rejection membrane element KM 8040-C(1,2,3)M1

 

Application

Sea and highly mineralized water up to 45 g/l

Model A, mm B, mm B' (ATD), mm C, mm D, mm Weight, kg
KM 8040-C1M1 1016.00 200.10 0.00 28.60 0.00 16.60
KM 8040-C2M1 1016.00 200.10 0.00 28.60 0.00 17.65
KM 8040-C3M1 1016.00 200.10 0.00 28.60 0.00 17.65

Product description

Membrane material Composite polyamide
Membrane type ОРМ45КM
Design Spiral wound
Application Sea water desalination

Specification

Model Flux, GPD Rejection, % Area Spacer
m2 ft2 mm mil
KM 8040-C1M1 8 000 99.80 / 99.60 39.00 420.00 0.72 28.00
KM 8040-C2M1 7 600 99.80 / 99.60 37.00 400.00 0.79 31.00
KM 8040-C3M1 7 100 99.80 / 99.60 35.00 375.00 0.86 34.00

TEST CONDITIONS: test solution of NaCl 32 g/l, P=5,5 MPa, T=25°C , pH=7,5. Recovery - 10%

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 and technical data for designing
Maximum pressure drop, MPa 0.1
Operation temperature, С 4-45
рН at operation 2-11
рН at chemical cleaning (short time operation) 2-11 (t≤45°C); 1-13 (t≤35°C)*
Concentrate/permeate ratio on each element, min 10:1
SDI (15 minutes test), max 5
Turbidity, NTU max 1
Free chlorine content, mg/l max 0.1
Maximum feed flow, m3/hr 17
Chemical washing, T t≤45°C (рН 2-11); t≤35°C (рН 1-13)*
1) During continuous work with pH over 10,5 the temperature must not exceed 35°С 2) Flow of each element in a batch may vary +/-15% *In case of chemical cleaning with a solution pH exceeding 11,5 or at the temperature level more than 45°С please contact original manufacturer for consultation.