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
| Model | Effective membrane area ft2(m2) | Flux GPD (m3/d) | Stabilize Rejection (%) | Minimum Rejection (%) |
| SURO BW-8040 | 400(37.2) | 10500(39.7) | 99.5 | 99.3 |
| SURO BW-4040 | 85(7.9) | 2500(9.4) | 99.5 | 99.3 |
| SURO BW-8040FR | 400(37.2) | 9500(35.9) | 99.5 | 99.3 |
| SURO BW-4040FR | 85(7.9) | 2300(8.7) | 99.5 | 99.3 |
· Test conditions
| Test liquid | Water temperature(℃) | pH | Operating pressure psi(MPa) | Recovery rate (%) |
| NaCl solution (2000 ppm) | 25±2 | 7.5-8.0 | 225(1.55) | 15±1 |
Notes:The permeate flow of single membrane element may vary with in±15%.
· Limit operating parameter
| Maximum operating pressure | 600psi(4.14MPa) |
| Maximum inlet temperature | 45℃ |
| Maximum inflow rate | 17.0m3/h(8040)、3.6m3/h(4040) |
| Maximum inflowSDI15 | 5.0 |
| Maximum residual chlorine concentration | 0.1mg/L |
| pH range of inlet water in continuous operation | 2-11 |
| PH range of inlet water during chemical cleaning | 1-13 |
| Maximum transmembrane pressure difference for single membrane element | 15psi(0.1MPa) |