High concentration reverse osmosis membrane OV-HC HP
● Concentrated brine concentration reduction
● Resource utilization of concentrated seawater
● Product performance and characteristics
High-recovery reverse osmosis membrane elements are suitable for concentrating and reducing the volume of high-salinity water in near-zero liquid discharge systems, enabling the recycling and reuse of resources.
HC70, HC80, and HC120 can concentrate high-salinity water TDS to 70 g/L, 80 g/L, and 120 g/L respectively, with a maximum operating pressure of 90 bar;
HP120 is an ultra-high-pressure concentration reverse osmosis membrane designed for concentrating and reducing TDS 50-80 g/L high-salinity water, with a maximum operating pressure of 120 bar.
● Specification parameters
Model of membrane element | Stable desalination rate(％) | Minimum desalination rate(％) | Average water productionGPD(m³/d) | Effective membrane areaft²(㎡) |
HC70 | 99.75 | 99.6 | 8800(33.3) | 400(37.2) |
HC80 | 99.75 | 99.25 | 9100(34.4) | 440(40.9) |
HC120 | 90 | 85 | 11500(43.5) | 370(34.4) |
HC160 | 85 | 80 | 13500(51.1) | 370(34.4) |
HP120 | 99.75 | 99.6 | 7400(28.0) | 330(30.7) |
● Testing conditions
Test pressure | 800 psi(5.50MPa)(HC70,HP120)` |
600psi(4.140MPa)(HC80,HC120,HC150) | |
| Test solution temperature | 25℃ |
Test solution concentration(NaCl) | 32000ppm |
Test solution pH value | 7.5 |
Recovery rate of single membrane element | 8%,15%(HC120,HC150) |
● Operating and cleanimg limits
| Maximum operating pressure | 1305 psi(9.0MPa)(HC70,HC80,HC120,HC150) |
1740 psi(12.0 MPa)(Hp120) | |
Maximum inlet flow rate | 75 gpm (17m³/h) |
Maximum inlet temperature | 45℃ |
Maximum inletSDI15 | 5 |
Inlet free chlorine concentration | ＜0.1 ppm |
| Inlet pH range for continuous operation | 2-11 |
Inlet pH range for chemical cleaning | 1-13 |
Maximum pressure drop of single membrane element | 15psi(0.1 MPa) |