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Brackish Water RO Membranes

The BW series is a low pressure aromatic polyamide composite reverse osmosis membrane element developed by UMEK for a wide range of surface and groundwater desalination applications. The products offer high water yield with a desalination rate of 99.6%.
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Brief Introduction

It is mainly used for the desalination of brackish water, surface water, groundwater and tap water with a salt content of up to 5000mg/L. Its application areas include the preparation of pure water for electronics, electric power, municipal drinking water, chemical industry, pharmaceuticals, etc. It can also be used for wastewater reuse and concentration projects. It has the characteristics of good desalination performance, high water production and low operating pressure.


Specifications and Major Properties

Model

Average Permeated Flow GPD (m3/d) 

Stable Rejection Rate (%)

Minimum Rejection Rate (%)

BW30HR-8040

10500(39.7)

99.75

99.4
BW30HR-4040 2500(9.5) 99.7 99.4


Testing Conditions: 

Testing Pressure: 225 psi (1.55Mpa)

Temperature of Testing Solution: 25°C

Concentration of Testing Solution (NaCI): 2000ppm

pH Value of Testing Solution: 7.5

Recovery Rate of Single Membrane Element: 15%


Extreme Operation Conditions

Max. Working Pressure: 600psi(4.14Mpa)

Max. Feedwater Flow: 75gpm(17m3/h) (8040)

16gpm (3.6 m3/h) (4040)

Max. Feedwater Temperature: 45°C

Max. Feedwater SDI: 5

Residual chlorine Concentration of Feedwate: < 0.1ppm

pH Range of Feedwater during Continuous Operation: 3~10

pH Range of Feedwater during Chemical Cleaning: 2~12

Max. Pressure Drop of Single Membrane Element: 15psi(0. 1Mpa)


Dimensions of Membrane Element

All dlimensions are shown in: millimeter (inch)


Dimensions of Membrane Element (1)


Dimensions of Membrane Element (2)



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