Huamo BW-4040 Brackish Water RO membrane, 78ft2 (7.2m2), Huamo (CAT#: STEM-GMAE-4860-LGZ)

BW-4040 membrane element is a helically wound composite polyamide membrane element for brackish water treatment. These membranes are characterized by high operating feed pressures, typically 225psi (1.55MPa), resulting in higher salt removal (especially suitable for removal of TOC, SiO2, etc.), above 99.5%. These membranes are specially designed for industrial water treatment applications (NaCl ≤ 10,000ppm, salt content ≤ 6000us/cm), such as electronics factories, power plants, petrochemical, coal chemical, etc. that deal with brackish water and high salinity.

Active Membrane: 78ft2 (7.2m2)
Average Permeate: 2,500gpd (9.5m3/d)
Stable Rejection: 99.5%
Min. Rejection: 99.3%
Spacer Net Thickness: 29mil (0.73mm)

Testing Conditions
Testing Pressure: 225psi (1.55MPa)
Temperature of Testing Solution: 25℃
Concentration of Testing Solution (NaCl): 2,000ppm
pH Value of Testing Solution: 7.5
Recovery Rate of Single Element: 15%

Operation Limits & conditions
Max. Feed Water Flow: 16gpm (3.6m3/h)
Max. Working Pressure: 600psi (4.14MPa)
Max. Feed Water Temperature: 45℃
Max. Feed Water SDI15: <5
pH Range of Feed Water During Continuous Operation: 2~11
pH Range of Feed Water During Chemical Cleaning: 1~13
Residual Chlorine Concentration of Feed Water: <0.1 ppm
Max. Pressure Drop of Single Element: 10psi (0.07MPa)
Max.Turbidity NTU: 1.0

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