Reverse Osmosis Water Makers: Multi-Scenario Application to Solve Water Supply-Demand Dilemmas
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Update time : 2025-09-12 16:46:44
When island residents no longer worry about fresh water shortages, when ocean-going ships break free from the constraint of "replenishing water at ports", and when electronic factories produce high-purity water to ensure chip quality—behind all these changes lies the technical support of reverse osmosis water makers. As an efficient water purification equipment, reverse osmosis water makers, with their flexible adaptability and stable treatment capacity, have been applied in various scenarios such as island life, coastal industry, marine transportation, high-end manufacturing, and household water use. They have become "customized solutions" to meet the water resource needs of different groups.
In island areas far from the mainland, the shortage of fresh water resources is often a core bottleneck restricting residents' lives and industrial development. A remote island in China once relied on water transported from the mainland for a long time, which was not only costly but also often interrupted due to severe weather. To completely solve this problem, the local area introduced a two-stage reverse osmosis seawater desalination system. Aiming at the high salinity of seawater, a complete process of "pretreatment - two-stage reverse osmosis - qualified water supply" was designed: seawater first undergoes grid decontamination and sedimentation to remove large particles such as sediment, and then enters the first-stage reverse osmosis equipment. Under the action of high pressure of 5-6 MPa, the first-stage reverse osmosis can remove 90%-95% of the salt in seawater, reducing the salt content of the produced water to 1000-5000 ppm; subsequently, the first-stage produced water enters the second-stage reverse osmosis system, and further desalination is carried out under a pressure of 1-2 MPa. Finally, the salt content of the final produced water is reduced to below 500 ppm, which fully meets the drinking water standard. This system stably produces 500 cubic meters of fresh water per day, which not only meets the daily water needs of the island residents but also provides water resource support for the local tourism development, turning the once "water-scarce island" into a livable and tourist-friendly "happy island".
For coastal industrial agglomerations, the demand for industrial water is large and the water quality requirements are high. Reverse osmosis water makers have become the "main force" in reducing enterprises' water use costs and ensuring stable production. A large number of electronics and chemical enterprises are distributed around a coastal city. The shortage of fresh water resources once put some enterprises in a dilemma of "production restriction". For this reason, the local government took the lead in building a large-scale seawater desalination plant, equipped with multiple reverse osmosis water makers operating in parallel, with a designed daily fresh water output of 10,000 cubic meters. Targeting the demand for industrial water, this project optimized the pretreatment and reverse osmosis links: seawater first undergoes coagulation and filtration to remove colloids and organic matter, and then enters the two-stage reverse osmosis system—the first-stage reverse osmosis uses high-efficiency membrane modules to reduce the salt content of the produced water to about 3000 ppm, and the second-stage reverse osmosis conducts further in-depth treatment to reduce the salt content of the final produced water to below 200 ppm, which meets the water requirements of various industrial links such as industrial cooling and product cleaning. After being put into use, this desalination plant provides stable and high-quality fresh water supply for surrounding enterprises. Compared with the traditional method of transferring water from the inland, the cost per ton of water is reduced by more than 30%, which not only eases the local industrial water pressure but also improves the market competitiveness of enterprises.
In the field of ocean transportation, reverse osmosis water makers are even more the "fresh water lifeline" for ship navigation. A large ocean-going cargo ship often sails for several months at a time, and the demand for domestic water for crew members and cooling water for equipment is huge. If it relies on fresh water carried from the departure port, it will not only occupy the cargo hold space but also limit the navigation endurance. For this reason, the cargo ship is equipped with a marine reverse osmosis water making system. Aiming at the particularity of ocean navigation, a compact integrated structure and a stable pressure control system are designed: the seawater pumped from the sea first undergoes simple filtration and sterilization to remove plankton and microorganisms, and then enters the two-stage reverse osmosis equipment—the first-stage reverse osmosis uses the stable high pressure provided by the ship's power system to remove most of the salt in the seawater; after further purification by the second-stage reverse osmosis, the produced fresh water is directly transported to the domestic water system and the equipment cooling system. At the same time, the system is equipped with an automatic fault detection and alarm function to ensure reliable operation in the complex marine environment. The application of this equipment enables the cargo ship to achieve self-sufficiency in fresh water during navigation, greatly improving the endurance and operational efficiency.
In the electronics manufacturing field with extremely strict water quality requirements, reverse osmosis water makers are the "key link" to ensure product quality. In the production process of a chip manufacturing enterprise, extremely trace amounts of ions, microorganisms, or organic impurities may lead to the degradation of chip performance or even scrapping. Therefore, the purity requirement for production water is extremely high (the resistivity needs to be stably above 18 MΩ·cm). To meet this demand, the enterprise introduced a customized RO reverse osmosis pure water system and built a process combining multi-link pretreatment and in-depth reverse osmosis: the raw water first passes through a multi-media filter to remove large particles, then through activated carbon adsorption to remove residual chlorine and some organic matter, and then enters the RO reverse osmosis system—with the help of high-performance reverse osmosis membranes, almost all ions, microorganisms, and organic matter in the water are retained, and finally ultra-pure water is produced. This system operates stably, and the resistivity of the produced ultra-pure water is continuously maintained above 18 MΩ·cm, which fully meets the needs of the chip manufacturing process. It not only greatly improves the yield of chips but also reduces the production loss caused by water quality problems, providing a solid guarantee for the enterprise's high-end chip production.
The application of reverse osmosis water makers is not limited to industrial and public fields; they have also gradually entered households and become "daily assistants" to improve the quality of residents' water use. A family of five in Xifuheyuan has 3 bathrooms, and their daily water needs cover drinking, washing, cleaning, and other aspects. To ensure the safety and convenience of household water use, the family installed an Aimei reverse osmosis pure water system, whose core parameters are fully adapted to household needs: the water purification capacity of the primary filter reaches 200 tons, the pure water production capacity exceeds 300 liters per hour, it is equipped with a 500-liter water storage tank, the water supply pressure is stably at 3.5 kg, and the water supply capacity reaches 3 tons per hour. In actual use, the system only needs to work for 3 hours a day to meet the whole family's daily water demand; even during peak water use periods (such as two bathrooms being used for bathing at the same time, with a maximum water consumption of about 1.1 tons per hour), the constant pressure variable frequency water supply system equipped with the Aimei pure water system can easily handle it (with a maximum water supply capacity of 4 tons per hour and a maximum lift of 30 meters), ensuring both water use convenience and water quality safety.
From islands to cities, from industry to households, reverse osmosis water makers have solved diversified water resource problems in different fields with their flexible scenario adaptability and efficient water treatment capacity. With the continuous upgrading of technology, this equipment will play a role in more scenarios in the future, providing more targeted solutions for the sustainable use of global water resources and making clean water sources within reach.
