The initial construction cost of the Sorek Desalination Plant was about $400 million, while the construction cost of the Carlsbad Desalination Plant was as high as $1 billion. As the world's largest desalination plant, the Ras Al Desalination Plant cost as much as $7.3 billion to build.

A reverse osmosis water plant is a facility that uses reverse osmosis technology to treat water. Its main goal is to remove dissolved salts, organic matter, microorganisms and other impurities in water through physical and chemical means to provide high-quality pure water.

Filtration systems that can filter sulfur from water: ● Activated carbon filter, ● Oxidation filtration system, ● Reverse osmosis (RO) system, ● Ion exchange system, ● Green sand filter.

According to the lowest and highest costs, the total cost of building a small water treatment plant is about 170,000-485,000 US dollars. If operation and maintenance costs are taken into account, the total expenditure in the first year will increase to between $270,000 and $630,000.

Reverse osmosis filters almost completely remove dissolved solids, organic matter and bacteria in water through semipermeable membranes. This filtration method can provide extremely high purity water quality and is widely used in the preparation of household drinking water and industrial water.

Application effects of UV filters: 1. Sterilization effect (sterilization efficiency can reach more than 99%), 2. Removal of organic pollutants, 3. Wide range of applications (household, municipal, industrial water, swimming pools, etc.).

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.

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.

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