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Reverse osmosis membrane is an artificial semipermeable membrane used for water treatment. It can use pressure difference to separate dissolved salts, organic matter, microorganisms and other substances in water to obtain pure water. The working principle of the reverse osmosis membrane is that under the action of the osmotic pressure higher than the solution, water molecules can pass through the membrane while other substances cannot pass through, thus realizing the separation of water and solute. The main materials of reverse osmosis membranes are cellulose acetate, polyamide and composite membranes, each of which has different characteristics, advantages and disadvantages. Reverse osmosis membrane is widely used in seawater desalination, pure water preparation, wastewater treatment, food concentration and other fields. It is an energy-saving, environmentally friendly and efficient water treatment technology.
Ordinary reverse osmosis membranes can withstand free chlorine attack about 1000ppm·h, and the residual chlorine in the influent water of membrane elements is required to be <0.1ppm It must not contain oxidizing substances, otherwise the membrane elements will be oxidized; and the anti-oxidation reverse osmosis membrane is resistant to free chlorine attack About 26000ppm·h (the desalination rate is still >98%), if the residual chlorine in the influent = 0.5ppm, the membrane element can still be used for 3 years Maintain a salt rejection rate of over 98%. Since the oxidation resistance of the anti-oxidation film is much higher than that of the ordinary film, the pre-treatment In the treatment, the treatment unit for removing residual chlorine (or other oxidizing substances) can be omitted when using anti-oxidation membrane elements. Reduce investment.
Membrane model
| Model | Salt removing rate | Average water production | Operating pressure and Scope |
|---|---|---|---|
| gpd（m3/d) | |||
| ULP1812-50G | 97.5 | 50（0.19） | Extremely low pressure operation, suitable for home, hospital, laboratory pure water equipment, for processing the water with TDS |
| ULP1812-75G | 97.5 | 75（0.28） | below 500 parts per million. |
| ULP1812-100G | 95 | 100（0.38） | |
| ULP2812-200G | 97 | 200（0.76） | Extremely low operating pressure for water vending machine or drink straight home |
| ULP3012-300G | 97 | 240（0.91） | |
| ULP2521-300G | 99 | 300 (1.13) | |
| ULP3032-400G | 97 | 420（1.60) | |
| ULP31-4021 | 98 | 1000(3.78) | Low pressure operation, apply to commercial pure water machine, hospital, laboratory pure water equipment |
| ULP31-4040 | 99.4 | 1900(7.2) | Low pressure operation, suitable for low salinity water |
| ULP21-4040 | 99 | 2400(9.1) | |
| ULP32-8040 | 99.5 | 10500（39.7） | |
| LP22-8040 | 99.5 | 10500（39.7） | Low pressure operation, suitable for salt water or brackish water of high concentrations |
| LP21-4040 | 99.5 | 2400(9.1) | |
| SW21-4040 | 99.5 | 1400（5.3） | High pressure operation, suitable for sea water or low level sea water |
| SW11-8040 | 99.7 | 5000（18.9） | |
| FR11-4040 | 99.5 | 2200（8.3） | Low pressure operation, suitable for containing a small amount of pollutants’ (organic matter, colloid) water. |
| FR11-8040 | 99.5 | 9600（36.3） |
Reverse osmosis membrane is an artificial semipermeable membrane used for water treatment. It can use pressure difference to separate dissolved salts, organic matter, microorganisms and other substances in water to obtain pure water. The working principle of the reverse osmosis membrane is that under the action of the osmotic pressure higher than the solution, water molecules can pass through the membrane while other substances cannot pass through, thus realizing the separation of water and solute. The main materials of reverse osmosis membranes are cellulose acetate, polyamide and composite membranes, each of which has different characteristics, advantages and disadvantages. Reverse osmosis membrane is widely used in seawater desalination, pure water preparation, wastewater treatment, food concentration and other fields. It is an energy-saving, environmentally friendly and efficient water treatment technology.
Ordinary reverse osmosis membranes can withstand free chlorine attack about 1000ppm·h, and the residual chlorine in the influent water of membrane elements is required to be <0.1ppm It must not contain oxidizing substances, otherwise the membrane elements will be oxidized; and the anti-oxidation reverse osmosis membrane is resistant to free chlorine attack About 26000ppm·h (the desalination rate is still >98%), if the residual chlorine in the influent = 0.5ppm, the membrane element can still be used for 3 years Maintain a salt rejection rate of over 98%. Since the oxidation resistance of the anti-oxidation film is much higher than that of the ordinary film, the pre-treatment In the treatment, the treatment unit for removing residual chlorine (or other oxidizing substances) can be omitted when using anti-oxidation membrane elements. Reduce investment.
Membrane model
| Model | Salt removing rate | Average water production | Operating pressure and Scope |
|---|---|---|---|
| gpd（m3/d) | |||
| ULP1812-50G | 97.5 | 50（0.19） | Extremely low pressure operation, suitable for home, hospital, laboratory pure water equipment, for processing the water with TDS |
| ULP1812-75G | 97.5 | 75（0.28） | below 500 parts per million. |
| ULP1812-100G | 95 | 100（0.38） | |
| ULP2812-200G | 97 | 200（0.76） | Extremely low operating pressure for water vending machine or drink straight home |
| ULP3012-300G | 97 | 240（0.91） | |
| ULP2521-300G | 99 | 300 (1.13) | |
| ULP3032-400G | 97 | 420（1.60) | |
| ULP31-4021 | 98 | 1000(3.78) | Low pressure operation, apply to commercial pure water machine, hospital, laboratory pure water equipment |
| ULP31-4040 | 99.4 | 1900(7.2) | Low pressure operation, suitable for low salinity water |
| ULP21-4040 | 99 | 2400(9.1) | |
| ULP32-8040 | 99.5 | 10500（39.7） | |
| LP22-8040 | 99.5 | 10500（39.7） | Low pressure operation, suitable for salt water or brackish water of high concentrations |
| LP21-4040 | 99.5 | 2400(9.1) | |
| SW21-4040 | 99.5 | 1400（5.3） | High pressure operation, suitable for sea water or low level sea water |
| SW11-8040 | 99.7 | 5000（18.9） | |
| FR11-4040 | 99.5 | 2200（8.3） | Low pressure operation, suitable for containing a small amount of pollutants’ (organic matter, colloid) water. |
| FR11-8040 | 99.5 | 9600（36.3） |
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We are a professional water treatment company dedicated to providing high-quality water treatment solutions to customers worldwide. We have years of industry experience and professional knowledge, as well as a wide supply chain network, to provide comprehensive services to customers.