In response to increasing water scarcity, over the last 30 years desalination has evolved into a viable alternative water supply. It allows us to tap non-traditional water resources with great potential to provide a sustainable, drought-proof water supply. Desalination provides only around 1 percent of the world’s drinking water, but this percentage is growing year-on-year. An expected US$10 billion investment in the next five years would add 5.7 million cubic meters per day of new production capacity. This capacity is expected to double by 2030. Desalinated water is produced by either using brackish water (water with salt content of less than 10,000 mg/L), or seawater which salinity in a range of 30,000 to 44,000 mg/L. While desalination of brackish water offers opportunities to produce lower cost water, it’s unlikely to be a main source of alternative water … Continue reading Desalination – Past, Present and Future