HR – High Rejection BWRO Membranes

//HR – High Rejection BWRO Membranes

BW Series – Industrial Brackish Water RO Membranes

HR – High Rejection BWRO Membranes

BW RO membrane elements are mainly used for brackish water desalination. They provide excellent, stable and consistent membrane performance for industrial water treatment systems. The element operates under low pressure providing a more cost effective alternative for industrial-grade water treatment applications. It has high rejection rate for dissolved salts that are difficult to remove, such as TOC, SiO , etc., and therefore, applicable to near zero 2 discharge for oil and petrochemical industry waste water treatment and feed water for thermal power plant boilers.

  • Stable performance and high rejection rate for organics

  • Low operating pressures, high flux and cost saving

  • Meet the demand for near zero discharge

Product Dimensions
Model
A inch (mm)
B inch (mm)
C inch (mm)
D inch (mm)
BW-8040-400HR
40(1,016)
/
1.125 (29)
7.9 (201)
BW-8040-400HR
40(1,016)
/
1.125 (29)
7.9 (201)
BW-4040-82HR
37.9(963)
1.05(26.7)
0.75(19)
3.9(99)
Product Specifications
Model
Effective Membrane ft² (㎡)
Minimum Rejection Rate(%)
Stabilized Boron Rate(%)
Flux, gpd (m³/d)
BW-8040-400HR
400(37.2)
99.40
99.70
11400(43)
BW-8040-440HR
400(37.2)
99.40
99.70
12560(48)
BW-4040-82HR
82(7.6)
99.30
99.50
2250(8.6)

Flux and rejection rate is based on the following standard test conditions: 1.55 MPa (225 psi) pressure, 77°F (25°C), 2000 ppm NaCl solution and pH 8 for feedwater, and 15% recovery.

Operating and Cleaning Limits
  • Maximum Operating Pressure                41 bar (600 psi)
  • Maximum Operating Temperature        45°C (113°F )
  • Maximum Element Pressure Drop         1.0 bar (15psi)
  • pH Range Continuous Operation            2-11
  • pH Range Short-Term Cleaning               1-13
  • Maximum Feed SDI(SDI )                         5.0
  • Free Chlorine Tolerance                            < 0.1 ppm
Notes
  • Permeate flow for individual elements may vary ±15 percent from the value specified.
  • Active membrane area guaranteed ±4%.
  • Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending upon feedwater characteristics and operating conditions.
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