What is desalination and water treatment?
Desalination is a technique where the excess salts are removed from sea water or brackish water converting it into safe potable or usable water. Desalination methods are categorized into thermal processes and membrane processes.
What happens to water in desalination process?
Seawater desalination is the removal of salt and impurities from seawater to produce fresh water. Our desalination plants use a reverse osmosis process. The filtered seawater is then forced under pressure through special membranes whereby the osmosis process that normally occurs in nature is reversed.
Which two methods are used for desalination?
Two distillation technologies are used primarily around the world for desalination: thermal distillation and membrane distillation.
Why is desalination so expensive?
Why is Desalination So Expensive? The high-pressure system used to desalinate saltwater requires a high amount of energy to do. Billions of gallons of water are forced through the pressure treatments, consuming an average of 10-13 kilowatt-hours (kwh) per every thousand gallons.
What are some methods for desalination?
Experimental techniques Waste heat. Thermally-driven desalination technologies are frequently suggested for use with low-temperature waste heat sources, as the low temperatures are not useful for many industrial processes, but ideal for the Low-temperature thermal. Thermoionic process. Evaporation and condensation for crops.
What is the process for water desalination?
The traditional process of desalination is distillation, i.e. boiling and re-condensation of seawater to leave salt and impurities behind.
What are the by products to desalination?
Saltwater (especially sea water) is desalinated to produce water suitable for human consumption or irrigation. The by-product of the desalination process is brine . Desalination is used on many seagoing ships and submarines.
