INTRODUCTION
BOKA Water’s ULP aromatic polyamide composite membrane elements are engineered specifically for groundwater and surface water treatment applications. Designed for ultra-low-pressure operation, these membranes typically require only about two-thirds of the operating pressure of conventional low-pressure brackish water membranes, helping reduce energy consumption and operating costs.
With a salt rejection rate of up to 99.5%, BOKA Water ULP membranes deliver stable, high-quality permeate while maintaining excellent flow performance under very low operating pressure conditions. Their advanced membrane technology ensures efficient desalination and reliable system operation for a wide range of water treatment applications.
It mainly applies to treatment for surface water, groundwater, municipal water, etc. within salinity<2000mg/L. The application fields include bottled drinking water, dual water supply in residential area or industrial park, food and beverage production, etc. It has the characteristics of higher permeate flow, low operating pressure as well as high rejection rate.
SPECIFICATIONS & PARAMETERS
| Model | Active Area ft 2 (m2) |
Concentrate Channel Spacer mil |
Permeate Flow Rate GPD(m 3 /d) |
Stabilized Salt Rejection (%) |
Minimum Salt Rejection (%) |
| ULP-4040HF | 100(9.3) | 28 | 2700(10.2) | 99.50 | 99.40 |
TEST CONDITION
Standard Test Conditions:
| Solution | Temperature (°C) | pH | Operating Pressure psi(MPa) |
Recovery (%) |
| 1500mg/L NaCl | 25 | 7.5-8.0 | 150(1.03) | 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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