High Salt Tolerance Seawater RO Membrane Element
Seawater RO Membrane Performance Parameters
| Item | ROC-8040/34FA | |
| Stabilized Salt Rejection (%) | 99.90% | |
| Diaphragm Material | Polyamide Composite Membrane | |
| Membrane Area (Ft2/M2) | 400(37)±3% | |
| Permeate Flow (GPD/M2d) | 8000(30)±15% | |
| Maximum Operating Temperature (°C) | ≤45 | |
| Maximum Operating Pressure (Bar) | ≤83 | |
| PH Range For Short-Term Cleaning | 1-13 | |
| Maximum Feed Silt Density Index | 5 | |
Product size parameter
|
Membrane element size |
A (±2.0mm) |
B (±0.5mm) |
C (±0.1mm) |
|
8040 |
1016 |
28.8 |
200 |
Application Scenarios
- Coastal Factory Water Production: Treat seawater and brackish raw water for coastal industrial facilities, generating qualified boiler feed water and process purified water to cut enterprise water consumption.
- Coastal City Freshwater Supply: Convert seawater into usable water resources for coastal towns, supplementing municipal drinking water sources and easing local freshwater scarcity.
- Offshore & Island Water Making: Supply reliable domestic and process water for remote islands and marine offshore platforms by removing salts from seawater.
- Shipboard Water Generation: Implement seawater desalination systems for ocean-going vessels to produce clean freshwater for onboard daily use.
- Coastal Tourist Site Water Supply: Purify seawater to meet daily water demands of coastal resorts and scenic parks.
Related Knowledge
Judgment of Membrane Fouling
How to identify membrane fouling. Key parameters are listed below:
(1) The most critical indicator is the difference in membrane flux (units such as LMH or LPM) under identical operating conditions (same pressure, temperature and recirculation flow rate). Generally, membrane fouling is confirmed when the flux of used membranes drops below 85% of that of new membranes.
(2) Membrane fouling usually leads to changes in membrane rejection performance, which may either increase or decrease.
(3) Under identical operating conditions, the pressure difference across the membrane module rises after fouling, which means the transmembrane resistance increases.
Warranty Period
The company warrants the performance of membrane elements for three 3 years. The three-year warranty period shall commence on the earliest of the following dates:
- The date when the reverse osmosis system is put into operation;
- Six 6 months from the date the membrane elements are shipped from the manufacturing site;
- Three 3 months after the membrane elements are shipped from Guangzhou / Shanghai, China to Taiwan of China, Japan, South Korea, Thailand, India, Malaysia, the United States and other designated locations in China.
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