Industry cases - Municipal water supply

—— A strategic water source for the future, a key solution to solve the global water shortage

With the increasing shortage of freshwater resources, especially in coastal industrial areas, islands, deserts and high-salt areas, desalination of seawater is becoming a key path to achieve sustainable development. Converting seawater into drinking water or industrial water is not only a technical challenge, but also a deep test of system stability, economy and resource efficiency.
Characteristics of desalination of seawater:
It is difficult to treat high-salinity water sources: The TDS (total dissolved solids) concentration in seawater is usually 35,000–45,000 mg/L, which is much higher than surface or groundwater. It must be treated with advanced technologies such as high-pressure membrane separation.
High energy consumption and strict system requirements: Traditional reverse osmosis systems need to withstand 55–80 bar high pressure, and core equipment and pipeline materials need to have strong corrosion resistance and long life.
The quality of the effluent must be precisely controlled: For different needs (such as drinking water, boiler water for power plants, industrial cooling water, etc.), the effluent quality must be TDS < 500mg/L, or even ≤ 50mg/L.
Concentrated water discharge must comply with environmental protection regulations: Concentrated brine contains a large amount of sodium chloride and trace metal ions. Treatment and discharge must comply with marine environmental protection regulations to ensure eco-friendliness.
The system must operate stably and efficiently: Especially in key scenarios such as islands, ports, and remote oil and gas facilities, the system is required to have high automation, high reliability, and all-weather unmanned operation capabilities.