INTRODUCTION
Bokawater BW aromatic polyamide composite membrane elements are specially designed for groundwater and surface water treatment applications, featuring high salt rejection, stable performance, and high permeate flow for efficient water purification.
It mainly applied to desalination treatment of brackish water, surface water, groundwater, tap water, etc. within salinity<5000mg/L, and can also used for waste water reuse , concentration and other projects. The application fields include electronics, electricity, municipal drinking water, chemicals, pharmaceutical and so on. It has the characteristics of high rejection rate, high permeate flux and low operating pressure.
SPECIFICATIONS & PARAMETERS
| Model | Active Area ft 2 (m 2) |
Concentrate Channel Spacer mil |
Permeate Flow Rate GPD(m 3 /d) |
Stabilized Salt Rejection (%) |
Minimum Salt Rejection (%) |
| BW-4040 | 85(7.9) | 28 | 2500(9.5) | 99.60 | 99.50 |
TEST CONDITION
Standard Test Conditions:
| Solution | Temperature (°C) | pH | Operating Pressure psi(MPa) |
Recovery (%) |
| 2000mg/L NaCl | 25 | 7.5-8.0 | 225(1.55) | 15 |
Water Production Fluctuation Range: ±15%
Membrane Element Operating Limits:
| Maximum Operating Pressure | 600 psi(4.14MPa) |
| Maximum Feed Flow Rate | 17.0m3/h |
| Operating Temperature Range | 45 ℃ |
| Maximum Feed SDI 15 | 5.0 |
| Free Chlorine Tolerance | 0.1mg/L |
| pH Range, Continuous Operation | 3-10 |
| pH Range, Short-Term Cleaning | 1-13 |
| Maximum Element Pressure Drop | 15psi(0.1MPa) |
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