ZEKINDO SWRO Membrane Series

Brief Introduction

ZEKINDO SWRO MEMBRANE SERIES are high-rejection membrane elements developed for seawater desalination. They ensure long-term, stable performance with consistently high salt rejection while maintaining standard flux levels.

Highlights of the SWRO Series:

  • High boron removal and salt rejection rates
  • Increased sheet thickness and cross-linking degree for longer service life and improved chemical resistance
  • Shorter membrane sheet length design to maximize effective area utilization and reduce membrane fouling

SW (Standard Seawater Membranes)

SW membranes provide reliable high salt rejection at standard operating pressures. They are designed for general seawater desalination applications where energy consumption and fouling are moderate.

No
Description
Model
Active Membrane Area ft²
Active Membrane Area m²
Stable Rejection (%)
Minimum Rejection Rate (%)
Stabilized Boron Rate (%)
Flux Gpd
Flux m³/d
1
Sea Water Desalination (High Rejection SW and Low Energy SW Series)
ZEKINDO SW-4040
82
7,6
99,6
99,7
99,7
1180
4,5

SW HR (High Rejection)

SW HR membranes are optimized for applications requiring maximum salt and boron rejection. They help ensure very high permeate quality, making them suitable for industries with stringent water purity requirements.

No
Description
Model
Active Membrane Area ft²
Active Membrane Area m²
Stable Rejection (%)
Minimum Rejection Rate (%)
Stabilized Boron Rate (%)
Flux Gpd
Flux m³/d
2
Sea Water Desalination (High Rejection SW and Low Energy SW Series)
ZEKINDO SW-4040
82
7,6
99,6
99,7
99,7
1180
4,5
3
Sea Water Desalination (High Rejection SW and Low Energy SW Series)
ZEKINDO SW-4040 HR
400
37
99,7
99,8
99,8
6900
26
4
Sea Water Desalination (High Rejection SW and Low Energy SW Series)
ZEKINDO SW-4040 HR
440
41
99,7
99,8
99,8
7500
28

SW HRLE (High Rejection, Low Energy)

SW HRLE membranes combine high rejection performance with lower operating pressure, reducing energy costs. They are ideal where both water quality and operational efficiency are equally important.

No
Description
Model
Active Membrane Area ft²
Active Membrane Area m²
Stable Rejection (%)
Minimum Rejection Rate (%)
Stabilized Boron Rate (%)
Flux Gpd
Flux m³/d
5
Sea Water Desalination (High Rejection SW and Low Energy SW Series)
ZEKINDO SW-4040 HRLE
82
7,6
99,6
99,7
99,7
1450
5,5
6
Sea Water Desalination (High Rejection SW and Low Energy SW Series)
ZEKINDO SW-4040 HRLE
400
37
99,7
99,8
99,8
7500
28
7
Sea Water Desalination (High Rejection SW and Low Energy SW Series)
ZEKINDO SW-4040 HRLE
440
41
99,7
99,8
99,8
8200
31
  • Flux and rejection rates are based on the following standard test conditions: 5 MPa (800 psi) pressure, 77 °F (25 °C), 32,000 ppm NaCl solution, pH 8 feedwater, and 8% recovery
  • Permeate flow for individual elements may vary by ±15% from the specified value
  • Stabilized salt rejection is typically achieved within 24–48 hours of continuous operation, depending on feedwater characteristics and operating conditions
  • Active membrane area is guaranteed within ±4%