COYON manufactures a full range of RO plant for sea water designed for heavy-duty or continuous service applications requiring seawater desalination, both onshore and offshore.
* Use reverse osmosis membrane separation technology to desalinate seawater.
* The reverse osmosis desalination process does not need to be heated to seawater, operating at normal temperature, without phase change, so the energy consumption is low and the water cost is low.
* This sea water RO system fully considers the special design of the ship's particularity. Small size, light weight, easy to install and easy to install, it can be installed in the narrow and crowded cabin, deck, crew cabin, corridor, and so on. The rack pipes are made of stainless steel and corrosion-resistant materials.The power supply is wide (220V (440) / 60HZ, 380V / 50HZ)
* Easy to operate and easy to maintain. As long as there is electricity, there is seawater, and the system can supply fresh water immediately. The reverse osmosis membrane desalination rate is high, with stable performance, safe, and reliable. The water quality is in line with the standard of drinking water quality (GB5749-8)
* No chemical can be added, but it can be directly consumed and is sweet.
* The RO plant for sea water is at the same technical and quality level as the small Marine desalination machines produced by countries such as the United States and Japan.
Compact and Durable
COYON's RO plant for sea water feature a uniquely innovative compact design that allows for easy installation in spaces of any size. Their high-quality, corrosion-resistant powder-coated frame is modular, allowing the system to be disassembled into multiple components for easy installation. Our sea water RO systems also feature premium components, including high-performance, corrosion-resistant twin-stainless steel centrifugal high-pressure pumps, a multi-functional programmable computer controller, a durable 1000 psi fiberglass membrane housing, and seawater membranes, ensuring excellent product water quality.
Customizable to Your Needs
Our RO plant for sea water range in capacity from 1.5 tons/day to 30 tons/day, with a maximum feed water total dissolved solids (TDS) concentration of 700 mg/L. We offer a standard RO plant for sea water and can also customize it to your water treatment needs. They are ideal for commercial vessels, island residences, oil platforms, hotels, or large yachts. These RO plants convert seawater into freshwater, serving any location requiring clean, pure freshwater. Our sea water RO systems feature advanced microprocessor control panels for state-of-the-art comprehensive control and easy system customization.
Sea Water RO System Process flow
The sea water RO system uses semi-permeable membrane technology, forcing seawater through the reverse osmosis membrane under high pressure to effectively remove salt and various impurities, converting seawater into freshwater. This technology is environmentally friendly, energy-efficient, and produces excellent water quality, making it one of the most widely recognized seawater desalination technologies globally.
1. Raw Water Intake: Seawater is introduced into the system through the intake facility and undergoes preliminary filtration to prevent large particles from entering the equipment, ensuring smooth subsequent treatment.
2. Pretreatment Stage: Pretreatment is a critical step in ensuring the lifespan of the reverse osmosis membrane and the stable operation of the system. Seawater undergoes coagulation, sedimentation, and multi-stage filtration to remove suspended solids, organic matter, and microorganisms, ensuring that the water entering the reverse osmosis membrane meets the required quality standards.
3. High-Pressure Pump Pressurization: Pretreated seawater is pressurized to the required pressure by a high-pressure pump, providing the power for the subsequent reverse osmosis process. This step ensures the effective separation of salts by the reverse osmosis membrane.
4. Reverse Osmosis Membrane Separation: Under high pressure, seawater passes through the reverse osmosis membrane. Salts, bacteria, and harmful substances are retained, while purified water permeates through the membrane to become product water, and the high-concentration brine is discharged from the system.
5. Product Water Treatment: The produced freshwater often undergoes further treatment, such as pH adjustment and mineralization, to improve water quality and meet drinking or industrial water standards.
6. Concentrated Water Treatment: Concentrated water is treated for safe discharge or reuse to ensure environmental protection and the rational use of resources.
Sea Water RO System Main Parts
- Raw water tank: Store water, buffering pressure, overcome instability of supplying water by pipe, ensure to supply water stably and continuously for whole system. (Customer provide, because big size will result in expensive freight.)
- Raw water pump / booster pump： Provide needed pressure for the pretreatment filters
- Quartz sand filter/Mechanical filter： FRP or stainless steel vessel as housing, fill quarts sand, it can filter big particles impurities, suspended substances, colloids etc.
- Activated carbon filter： FRP or stainless steel vessel as housing, fill activated carbon, remove color, odor, residual chlorine and organics substances.
- Water softener/ demineralizer/ Na+ exchanger： Adopt cation resin to Soften water, cation resin will absorb Ca2+, Mg2+(main elements for composing scale), reduce hardness of raw water, System can make resin intelligently regenerate, recycling.
- Security filter /PP filter：Prevent large particles, bacteria, viruses into RO membrane, accuracy is 5μm
- High pressure Pump： Provide needed working pressure for RO system, ensure production capacity of pure water. (CNP pump or customer-specified)
- Reverse osmosis(RO) system： Can remove particles, colloids, organic impurities, heavy metal ions, bacteria, virus, heat source etc. harmful substances and 99% dissolved salts. (RO membranes USA Filmtec, Toray, LG,Vontron or customer-specified)
- Electrical Control Cabinet：Automatic control, Relay /PLC/HIM as optional
Technical Data of RO Plant for Sea Water
|
Type |
Qutput Water |
Desalinating Rate |
TDS |
Operation Pressure |
Power Consumption |
Net Weight |
Size (L*W*H) (mm) |
|
LH-FSHB1.5 |
1.5 |
99.2 |
≤700 |
3.5-5.5 |
1.1 |
100 |
1100x500x460 |
|
LH-FSHB3 |
3 |
99.2 |
≤700 |
3.5-5.5 |
1.5 |
150 |
500x570x1350 |
|
LH-FSHB5 |
5 |
99.2 |
≤700 |
3.5-5.5 |
2.2 |
400 |
910x500x1540 |
|
LH-FSHB10 |
10 |
99.2 |
≤700 |
3.5-5.5 |
5.5 |
600 |
1520x780x1935 |
|
LH-FSHB20 |
20 |
99.2 |
≤700 |
3.5-5.5 |
10 |
900 |
1520x830x2025 |
|
LH-FSHB30 |
30 |
99.2 |
≤700 |
3.5-5.5 |
15 |
1200 |
2440x1000x2120 |
Applications of Sea Water RO System
The applications of seawater reverse osmosis systems are wide-ranging and important, making them a key technology in modern water resource development and management. With the increasing scarcity of global freshwater resources, RO technology, with its high efficiency, energy saving, and environmental friendliness, has become a powerful tool for solving water shortage problems. The following are the main application areas of sea water RO systems:
* Seawater Desalination: The most typical application of RO systems is seawater desalination. It efficiently removes salt and impurities from seawater, converting it into freshwater that meets domestic and industrial water standards. This technology provides valuable freshwater resources for coastal areas, islands, and arid regions, effectively alleviating the contradiction of water scarcity.
* Industrial Water Treatment: High-end manufacturing industries such as electronics, pharmaceuticals, and chemicals have strict requirements for water quality. Seawater reverse osmosis systems can provide high-purity water sources for industrial production, ensuring product quality and equipment operation safety, while reducing environmental impact and achieving green production.
* Agricultural Irrigation: Freshwater obtained through seawater desalination can be used for agricultural irrigation, especially in arid and water-scarce areas, helping to improve crop yield and quality. Utilizing reverse osmosis technology to improve water quality promotes sustainable agricultural development and ensures food security.
* Domestic Water Supply: In areas lacking natural freshwater resources, seawater reverse osmosis systems provide reliable drinking water for residents. This technology ensures water quality safety and makes a positive contribution to improving people's livelihoods and quality of life.
* Ship and Offshore Platform Water Supply: Ships and offshore platforms are at sea year-round, and freshwater shortages are a major constraint. Seawater reverse osmosis systems can produce fresh water on-site to meet living and operational needs, improving the autonomy and safety of marine operations.
* Emergency Water Supply Guarantee: In the face of natural disasters or emergencies that cause freshwater supply interruptions, seawater reverse osmosis systems can be quickly deployed to provide emergency water supply, demonstrating their flexibility and reliability.
In conclusion, RO plant for sea water, as a representative of advanced water treatment technology, promotes the efficient use of water resources and environmental protection. They not only help solve global water resource problems but also drive sustainable socio-economic development. In the future, with continuous technological innovation and expanded application areas, sea water RO systems will play an even more important role in improving the global water environment.
