SW(Sea Water) Membranes
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SW(Sea Water) Membranes

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Brief Introduction

SW Series is an aromatic polyamide composite membrane element for seawater desalination. By optimizing the structure of the membrane element, this series of membrane elements can increase water production. Under the same water production requirement, the number of membrane elements can be reduced. It has the characteristics of low operating pressure, low equipment investment, good desalination performance, and stability. In particular, its high desalination rate ensures that drinking water can be obtained from seawater through first-order reverse osmosis.
SW series membrane elements are suitable for the treatment of seawater and brackish water with high concentration. They can be used for the treatment of seawater desalination, desalination of brackish water with high concentration, boiler feed water in power plants, wastewater reuse, concentration and recovery of high-value-added substances such as food and medicine, etc.

Scope of Application

It is mainly used in various ffelds of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.

  • SW series of membrane elements performance

Model

Membrane  ft2 (m2)

Average Permeate GPD(m3/d)

Stable Rejection %

Min. Rejection% %

RM-SW1-4040

80 (7.4)

1900 (7.2)

99. 7

99

RM-SW2-8040

380 (35.2)

8200 (31)

99.7

99

 

  • SW series of membrane elements Testing Conditions

Testing Pressure

800 psi (5.5MPa)

Temperature of Testing Solution

25 ℃

Concentration of Testing Solution (NaCl)

30000ppm

pH Value of Testing Solution

7.5

Recovery Rate of Single Element

8%

 

  • SW series of membrane elements Operation Limits & Conditions
Max. Working Pressure 1000psi(6.9MPa) Max. Feed Water SDI15 5
Max. Feed Water Flow

75gpm (17 m3/h) For 8040

16gpm (3.6 m3/h) For 4040、 4021

Max. Feed Water COD 10ppm
Max. Feed Water BOD 5ppm
Max. Feed Water Temperature 45°C Max. Feed Water TOC 10ppm
Max. Feed Water TDS 5000ppm Residual Chlorine Concentration of Feed Water < 0. 1ppm
ax. Feed Water Hardness 60ppm pH Range of Feed Water During Continuous Operation 2〜12
Max.Turbidity NTU 1.0 Max. Pressure Drop of Single Element 15psi (0.1MPa)
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