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Products >> Industrial RO Membrane >> Seawater RO Membrane

General Information

Seawater reverse osmosis membrane elements are developed for seawater treatment, offering high productivity while maintaining excellent salt rejection performance, to help reduce capital and operation cost of seawater desalination systems.
TaFlux SW series reverse osmosis membrane element offers sustainable consistency, high rejection rate, low energy performance and lower lifecycle cost.

Seawater RO Membrane

Features & Advantages

  • Stable salt rejection rate at high feed TDS
  • Higher permeate flow rate at lower operating fluxes
  • Lower operating cost through reduced energy consumption
  • Economical equivalent element for direct replacement

Applications

  • Seawater desalination
  • Minimal or zero liquid discharge
  • Landfill leachate sewage treatment
  • High-salinity wastewater concentration
  • Other applications with feed TDS above 10,000 ppm

Specifications

  • Configuration: Spiral wound element
  • Membrane Polymer: Polyamide thin-film composite

Performance

Element Model

Membrane Active Area

ft2 (m2)

Feed Spacer

mil (mm)

Permeate Flow Rate*

GPD (m3/d)

Stabilized Salt Rejection**

Minimum Salt Rejection

Boron Rejection

TFSW-4040HR

85 (7.9)

28 (0.712)

1,500 (5.7)

99.75%

99.55%

92%

TFSW-4040MR

1,800 (6.8)

99.7%

99.5%

92%

TFSW-8040HR

400 (37.2)

6,500 (24.6)

99.8%

99.6%

92%

TFSW-8040

400 (37.2)

7,500 (28.3)

99.8%

99.65%

91%

TFSW-8040-440

440 (41)

9,000 (34.1)

99.8%

99.6%

92%

TFSW-8040-440HF

440 (41)

9,900 (37.5)

99.8%

99.6%

90%

TFSW-8040-34

400 (37.2)

34 (0.864)

7,500 (28.3)

99.8%

99.65%

91%

Standard test conditions:
The above performance is initial (data record after 30 minutes of operation), based on the following conditions:
32,000 ppm NaCl, 5 ppm H3BO3 solutionn
800 psi (55 bar) operating pressure
25°C (77°F) operating temperature
8% permeate recovery
7.5-8 pH range
*Permeate flow for individual elements may vary but will be no more than ±15%.
**Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending on feed water characteristics and operating conditions.
Element Dimensions
4040 Seawater RO Membrane Element Dimensions8040 Seawater RO Membrane Element Dimensions

Size

Length L

inch (mm)

Diameter D

inch (mm)

Permeate tube

inner diameter d

inch (mm)

Permeate tube

Extension L1

inch (mm)

4040

40 (1,016)

3.9 (99)

0.75 (19)

1.04 (26.5)

8040*

40 (1,016)

7.9 (201)

1.125 (28.6)

/

* Each 8040 membrane element supplied with one interconnector (coupler) with four O-rings.
All 8040 elements fit nominal 8.0 inch (203.2 mm) I.D. pressure vessels.

Operating and Cleaning Limits

Maximum Operating Pressure

1,200 psi (83 bar)

Maximum Operating Temperature

45°C (113°F)

Maximum Chlorine Concentration

0.1 ppm

pH Range, Continuous

2-11

pH Range, Cleaning

1-13

Maximum Feed SDI (15 mins)

5

Maximum Element Pressure Drop

15 psi (1 bar)

Maximum Feed Flow

3.6 m3/h (4040), 17 m3/h (8040)

Minimum Ratio of Concentrate to Permeate Flow for Each Element

5:1

The limits shown above are for general applications. For specific projects, operating at more conservative values may ensure the best performance and longest life of the membrane element.
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Contact Us

    Name: International Sales Dept.

    Tel: +86-27-8673 0002

    Fax: +86-27-8732 0476

    E-mail: [email protected]

    Add: 4th Floor, Baofeng Ages, 1045 Jiefang Blvd, Qiaokou District, Wuhan, Hubei Province, 430030, China

    inquiry@tanaltech.com
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