Through core technologies such as reverse osmosis and distillation, seawater desalination equipment converts high - salinity seawater into potable freshwater, effectively alleviating water shortages. With high - efficiency production and stable performance, it becomes a reliable water supply solution for islands, ships, and coastal areas.
Seawater desalination equipment refers to the devices specifically designed for desalinating seawater. There are mainly two methods for desalinating seawater, namely distillation and reverse osmosis.
Seawater Pretreatment: The pumped seawater first passes through a screen filter to remove large - sized impurities such as seaweed and shellfish, and then goes through sand filtration and activated carbon adsorption to reduce turbidity and remove residual chlorine, preventing damage to the membrane elements.
High - pressure Reverse Osmosis: The pretreated seawater is pressurized to 5 - 7MPa by a high - pressure pump and passes through the reverse osmosis membrane under pressure. Water molecules pass through the membrane to form fresh water, while salts and other impurities are retained, and the concentrated seawater is discharged from the brine end.
Freshwater Post - treatment: The fresh water that passes through the membrane undergoes degassing and mineralization to adjust the pH value and supplement minerals, making it meet the drinking water standard. Finally, it is sterilized by ultraviolet or ozone to ensure water safety.
Energy Recovery: An energy recovery device is used to convert the pressure of the concentrated water during discharge into mechanical energy to drive the high - pressure pump, reducing system energy consumption.
| Key Advantages | Description |
|---|
| High - efficiency Desalination | Adopts high - desalination reverse osmosis membranes, with a salt removal rate of 99.5% and a product water salinity <500mg/L, meeting WHO drinking water standards. |
| High Adaptability Design | Can adapt to different sea area salinities (15,000 - 45,000mg/L) and harsh water quality conditions, ensuring stable water production. |
| Energy - saving Technology | Integrated with an energy recovery system, reducing energy consumption by 30% compared to traditional equipment, with power consumption as low as 3 - 4kWh per ton of water. |
| Modular Integration | Adopts a container - type modular design, facilitating transportation and installation. The daily water production of a single device ranges from 5 - 10,000 tons, and multiple units can be connected in parallel for capacity expansion. |
| Intelligent Monitoring System | Equipped with a PLC automatic control system, which real - time monitors parameters such as water quality, pressure, and flow rate, provides fault warnings, and automatically adjusts the operating status. |
| Industry/Scenario | Application Scenarios | Core Value |
|---|
| Island Life | Daily water supply for island residents | Solves the problem of freshwater scarcity on islands, ensures residents' quality of life, and promotes island economic development. |
| Maritime Shipping | Freshwater replenishment for ocean - going ships | Meets the water needs of crew members and ship equipment, reduces dependence on shore - based replenishment, and enhances navigation autonomy. |
| Coastal Industries | Production water for petrochemical, power, and other enterprises | Provides a stable water source for water - intensive industries, reduces dependence on municipal water supply, and eases regional water stress. |
| Emergency Relief | Temporary water supply during floods, droughts, and other disasters | Quickly responds to sudden water shortages, provides safe drinking water to affected areas, and meets emergency rescue needs. |
Is the operation cost of seawater desalination equipment high?
With technological advancements and the popularization of energy recovery systems, the cost per ton of water has dropped to 5 - 8 yuan, and it can be further reduced with large - scale applications.
What is the equipment maintenance cycle?
Reverse osmosis membranes are recommended to be replaced every 2 - 3 years, and pretreatment filter elements should be replaced every 3 - 6 months depending on water quality. The overall equipment requires 1 - 2 comprehensive inspections per year.
Can the produced fresh water be drunk directly?
The fresh water after post - treatment meets the drinking water standard and can be drunk directly. If users have special requirements, additional deep - purification processes can be added.
Seawater desalination equipment stands out as a crucial solution to global water shortages, thanks to its excellent saline - water conversion ability, energy - efficient operation, and wide applicability. Whether it is to ensure the livelihoods of island residents, support ocean shipping, or serve water - intensive industries, stable water supply can be achieved through customized configurations. In the future, with innovations in membrane materials and the upgrading of intelligent technologies, seawater desalination equipment will further reduce costs and improve efficiency, providing sustainable freshwater resource guarantees for more regions.
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1.Reverse Osmosis Equipment
2.Demineralized water equipment
