The Ras Al-Khair Desalination Plant is the world's largest hybrid desalination plant, combining multi-stage flash and reverse osmosis (RO) technologies, with a total capacity of 1.025 million cubic meters per day. Among them, the reverse osmosis part has a capacity of 725,000 cubic meters per day.

The quality of raw water has an important impact on the amount of wastewater from a reverse osmosis system. The higher the dissolved solids, contaminants and hardness in the raw water, the more frequently the system needs to discharge wastewater to prevent membrane clogging.

If you plan to stay in Vietnam for a long time, or go to remote and rural areas, it is a wise choice to carry a portable water filter. Water filters can effectively remove impurities, bacteria and viruses in water, ensuring safe drinking water.

The prices of aluminium sulfate (alum) and polyaluminium chloride are relatively low and suitable for large-scale applications. Although polyacrylamide (PAM) has a good flocculation effect, it is more expensive and is suitable for scenarios with high requirements for flocculation effect volume.

● High-end system: about $60,000 to $100,000. Includes complex pretreatment equipment, top-level reverse osmosis membrane, most advanced high-pressure pump and fully automated control system, suitable for applications with poor water quality or extremely high water quality requirements.

Saudi Arabia: The leader in desalination technology Among the above-mentioned leading countries, Saudi Arabia is considered to be the most advanced country in desalination technology in the world because of its comprehensive leading position in desalination technology.

Reverse osmosis filter is one of the most efficient water purification technologies currently, capable of removing most pollutants. Water is separated under high pressure through a semipermeable membrane, most soluble substances and organic pollutants are intercepted.

Countertop water purifier is a small water purification device installed on the kitchen countertop, usually directly filtered by connecting to the faucet or water source. Its core working principle includes: pre-filtration, activated carbon filtration, ultrafiltration membrane filtration etc..

Types of reverse osmosis membranes used in seawater desalination: 1. Spiral-wound reverse osmosis membrane, 2. Flat-plate reverse osmosis membrane, 3. Hollow fiber reverse osmosis membrane.

Common filter media in drinking water treatment are: 1. Activated carbon, 2. Quartz sand, 3. Ceramic filter element, 4. Anthracite, 5. Ion exchange resin.