What is Google Desalination Water from the Sea? Innovations in Water Purification? – A new type of water purification that uses sunlight to process water. Scientists at Monash University have devised a light-responsive desalination process that uses solar energy more efficiently. This new technology is estimated to produce 139.5 litres of clean water per kilogram of material.
As of 2015, the Carlsbad Water Authority began providing residents with desalinated seawater. The water authority is a public-private partnership in a coastal city. The process involves separating seawater molecules through high-pressure membranes, allowing smaller ones to pass through. The process also removes salt and other contaminants from water. In many places, desalination is a viable solution for water supply problems.
Another promising technology is called nanofilters. Nanofilters are more effective than conventional water filtration methods because their pores are smaller and can process water at a similar flow rate. Nanotechnology is also being tested to solve the problem of desalination in a small scale. Researchers at Massachusetts Institute of Technology are examining the potential of graphene, a carbon material that is one atom thick, to desalinate seawater. These graphene sheets can block salt particles and clean seawater.
Despite the challenges of seawater desalination, the ocean remains a great source of water. It is practically limitless and drought proof, and its availability is almost endless. Currently, over 50 percent of the world’s population lives in coastal cities. Countries such as the Middle East, Australia, and Southern California have high populations along the coast. With such a population, desalination is the logical solution to the growing water demand.