Brackish water membrane element   
"SURO BW-8040/4040" and "SURO BW-8040FR/4040FR"

· Introduction

The membrane element is suitable for desalting surface water, groundwater and other water sources with salt concentration below 10000mg/L. It can also be used for desalting and color removal in water with higher organic or microbial content. Through the modification treatment of the membrane, the membrane element with very low charge has the characteristics of high pollution resistance, good cleaning recovery and so on, which can be widely used in the reuse of water and sewage treatment projects.

· Product specification
ModelEffective membrane area ft²(m²)Flux GPD
Stabilize Rejection
Minimum Rejection
SURO BW-8040400(37.2)10500(39.7)99.599.3
SURO BW-404085(7.9)2500(9.4)99.599.3
SURO BW-8040FR400(37.2)9500(35.9)99.599.3
SURO BW-4040FR85(7.9)2300(8.7)99.599.3

· Test conditions
Test liquidWater temperature(℃)pHOperating pressure psi(MPa)Recovery rate (%)
NaCl solution (2000 ppm)25±27.5-8.0225(1.55)15±1

Notes:The permeate flow of single membrane element may vary with in±15%.

· Limit operating parameter

Maximum operating pressure600psi(4.14MPa)
Maximum inlet temperature45℃
Maximum inflow rate17.0m³/h(8040)、3.6m³/h(4040)
Maximum inflowSDI155.0
Maximum residual chlorine concentration0.1mg/L
pH range of inlet water in continuous operation2-11
PH range of inlet water during chemical cleaning1-13
Maximum transmembrane pressure difference for single membrane element15psi(0.1MPa)