Hydranautics PRO-LF1 Low Fouling High Pressure Reverse Osmosis Membranes
PRO-LF membranes are spiral-wound reverse osmosis elements engineered with a neutrally charged, hydrophilic surface to significantly reduce fouling during the treatment of high-salinity wastewater. Their advanced anti-fouling characteristics make them particularly effective in challenging industrial applications, including wastewater treatment from coal processing, chemical manufacturing, mining operations, tanneries, and textile production facilities.
Reference: PRO-LF1
Hydranautics PRO-LF1 Low Fouling High Pressure Reverse Osmosis Membranes
PRO-LF spiral wound RO membranes resist fouling, ideal for high-salinity wastewater from coal, chemical, mining, textile, and tannery industries.
Specified Performance
| Membrane Performance Specifications | |
|---|---|
| Permeate Flow (Nominal) | 7,700 gpd (29.1 m³/d) |
| Salt Rejection | 99.8% (99.7% minimum) |
| Test Conditions | |
| Solution | 32,000 ppm NaCl |
| Applied Pressure | 800 psig (5.52 MPa) Applied Pressure |
| Operating Temperature | 77°F (25°C) |
| Permeate Recovery | 10% |
| pH Range | 6.5 - 7.0 pH Range |
The Specified Performance is based on data taken after a minimum 10 minutes of operation. Actual testing of elements may be done at conditions which vary from these exact values; in which case, the performance is normalized back to these standard conditions. Permeate flow for individual elements may vary ±15 percent from the value specified.
General Product Description
| Membrane Configuration Details | |
|---|---|
| Configuration | Low Fouling Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Surface Charge | Neutrally Charged Surface |
| Membrane Active Area | 400 ft² (37.2 m²) |
| Feed Spacer | 34 mil (0.86 mm) |
Packaging: All membrane elements are supplied with a brine seal, interconnector, and O-rings. Elements are enclosed in a sealed polyethylene bag containing less than 1.0% sodium meta-bisulfite solution, and then packaged in a cardboard box.
Product Use and Restrictions
| Operating Limits | |
|---|---|
| Maximum Applied Pressure | 1200 psig (8.27 MPa) |
| Maximum Chlorine Concentration | < 0.1 ppm |
| Maximum Operating Temperature | 113°F (45°C) |
| pH Range, Continuous (Cleaning) | 2–11 (1–13) at T < 25°C 2–11 (1–12) at T = 25 to <35°C 3–10.5 (2–11) at T = 35 to 45°C |
| Maximum Feedwater Turbidity | 1.0 NTU |
| Maximum Feedwater SDI (15 mins) | 5.0 |
| Maximum Feed Flow | 85 gpm (19.3 m³/h) |
| Minimum Brine Flow | 12 gpm (2.7 m³/h) |
| Maximum Pressure Drop for Each Element | 15 psi (0.10 MPa) |
^ The limitations shown here are for general use. For specified projects, operation at more conservative values may ensure the best performance and longest life of the membrane. See Hydranautics Technical Bulletins for more details.
Disclaimer: The information and data are presented in good faith and in lieu of all warranties. All express or implied warranties, including the warranties of merchantability and fitness for a particular purpose, are hereby disclaimed and excluded. Conditions and methods of use of the products are beyond control. Hydranautics assumes no liability for results obtained or damages incurred through the application of the presented information and data. It is the user’s responsibility to determine the appropriateness of Hydranautics’ products for the user’s specific end uses.