Summary
Reverse osmosis (PO) is a kind of membrane separation technology. Its principle is: use enough pressure to separate the solvent (usually water) in the solution through the reverse osmosis membrane. Because its operation is contrary to the normal osmosis process in nature, it is called reverse osmosis (or reverse osmosis). With the development of membrane technology and continuous improvement of membrane performance, reverse osmosis technology will develop into a new chemical separation technology for separation, classification, purification and enrichment.
The main features of RO technology are as follows:
Low energy consumption, compact structure, simple operation, easy maintenance, high degree of automation, no environmental pollution.
Reverse osmosis technology is widely used in water supply treatment, purification of urban tap water, preparation of pure water, ultra pure water, injection water and edible pure water in power, electronics, medicine, medical treatment and food industries; desalination of seawater and brackish water; preparation of drinking water, etc.
Reverse osmosis system is composed of three parts: pretreatment, reverse osmosis device and post-treatment. The core of the reverse osmosis system is the reverse osmosis device. Pretreatment is the premise of the long-term stable operation of the reverse osmosis device. The post-treatment is used to meet the final water quality indicators of different treatment objects.
SRO series reverse osmosis device of our company adopts high-quality membrane components and key components at home and abroad, which has the characteristics of stable operation, low cost and good efficiency.
Selection Guide
technological process
technical parameter
| Inlet water quality index of roll type reverse osmosis device (polyacylamide composite membrane) | |
| Iron (total iron meter) (mg / L): ≤ 0.1 | |
| Detergent, oil, H2S, etc.: not detected | |
| SDI index：＜5 | Surfactant (mg / L): undetectable |
| Solubility product of calcium sulfate: concentrated water < 19 × 10-5 | |
| water temperature：（℃）5～45 | Precipitated ions (SiO2, BA), etc.: concentrated water does not precipitate |
| Chemical oxygen consumption (calculated by O2) (mg / L): < 1.5 | |
Technical parameters of common composite membrane elements
| Model | SRO-2540 | SRO-4040 | SRO-8040 | |
| Specifications | OD x Length (in) | 2.4×40 | 3.88×40 | 7.88×40 |
| Diaphragm material | Polyacylamide composite membrane | |||
| Dry weight kg | 2.27 | 5.45 | 20.41 | |
| main performance | Desalination rate% (average / minimum) | 99.4/99.0 | ||
| Infiltration water volume m3 / D | 2.68 | 8.88 | 34.78 | |
| PH value of inlet water | 4～11（optimum：6.5～7.5） | |||
| Membrane recovery | Recovery of single membrane：15% | |||
| Test conditions | Standard operating pressure | 13.8～15.5kg/m2 | ||
| Test fluid depth | 2000ppm(NaCl solution） | |||
| Operating pressure | 15.5kg/m3 | |||
| Operating temperature | 25℃ | |||
Note: the above are the technical parameters of common composite membrane. The technical parameters of other membrane required by users can be directly contacted with our company.
Primary roll type reverse osmosis device
| Model | Code name | |||||
Element desalination rate （%）△ | Water production (L / h) | Boundary dimension (mm) Length × width × height | Inlet Size (mm) | Diameter of water production pipe （mm） | Weight (T) | |
| SRO-1000Ⅰ | ＞98 | 1000 | 2500×700×1700 | 32 | 25 | 0.23 |
| SRO-2000Ⅰ | 2000 | 3100×700×1700 | 32 | 0.28 | ||
| SRO-3000Ⅰ | 3000 | 3600×1000×1700 | 40 | 0.39 | ||
| SRO-5000Ⅰ | 5000 | 50 | 40 | 0.43 | ||
| SRO-8000Ⅰ | 8000 | 3600×1400×1700 | 50 | 0.48 | ||
| SRO-10000Ⅰ | 10000 | 65 | 0.54 | |||
| SRO-15000Ⅰ | 15000 | 5400×1400×2000 | 65 | 1.15 | ||
| SRO-20000Ⅰ | 20000 | 5400×1600×2000 | 80 | 1.39 | ||
| SRO-25000Ⅰ | 25000 | 1.65 | ||||
| SRO-30000Ⅰ | 30000 | 5400×1650×2000 | 80 | 2.38 | ||
| SRO-40000Ⅰ | 40000 | 7100×1800×2100 | 100 | 100 | 2.95 | |
| SRO-50000Ⅰ | 50000 | 125 | ||||
| SRO-60000Ⅰ | 60000 | |||||
Two stage roll reverser
| Model | Code name | |||||
Element desalination rate （%） | Water production (L / h) | Boundary dimension (mm) Length × width × height | Inlet Size (mm) | Diameter of water production pipe (mm ） | Weight (T) | |
| SRO-A-1000Ⅱ | ＞99.5 | 1000 | 2500×1000×1700 | 32 | 25 | 0.29 |
| SRO-A-2000Ⅱ | 2000 | 3600×1200×1700 | 40 | 32 | 0.38 | |
| SRO-A-3000Ⅱ | 3000 | 0.49 | ||||
| SRO-A-5000Ⅱ | 5000 | 50 | 40 | 0.57 | ||
| SRO-A-8000Ⅱ | 8000 | 50 | 0.93 | |||
| SRO-A-10000Ⅱ | 10000 | 5400×1500×1800 | 65 | 1.42 | ||
| SRO-A-15000Ⅱ | 15000 | 5400×1500×2080 | 80 | 65 | 2.63 | |
| SRO-A-20000Ⅱ | 20000 | 7100×1800×2100 | 80 | 3.84 | ||
| SRO-A-25000Ⅱ | 25000 | 100 | 4.23 | |||
| SRO-A-30000Ⅱ | 30000 | 4.91 | ||||
| SRO-A-40000Ⅱ | 40000 | 7100×1800×2100 （Two stations） | 120 | 100 | 7.43 | |
| SRO-A-50000Ⅱ | 50000 | 125 | 8.38 | |||
| SRO-A-60000Ⅱ | 60000 | 150 | 125 | 9.35 | ||
(corresponding to different source water quality, the desalting rate of the device has an error of ± 5%)
Schematic diagram of primary RO device | Schematic diagram of secondary reverse osmosis device |
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Service Information
In addition to the reverse osmosis device described above, our company also designs and produces other reverse osmosis devices, such as ultra-low pressure reverse osmosis device and hollow fiber reverse osmosis device, which can be used in pure water, desalted water, seawater desalination and sewage treatment systems. Users can process water quality data according to their needs. Our company will design an economic and reasonable system according to the data provided by customers.