The campus also boasts of having India's first solar plant to desalinate seawater. It can desalinate extremely salty brine up to seven times as salty as the ocean. Fractional freezing can be used to desalinate sea water. Areas that have either no or limited surface water or groundwater may choose to desalinate. The New Orleans waterworks project also was designed to desalinate water, using steam-powered pumps. Some of the energy will also be used directly to desalinate water. It is one of the most efficient processes used to desalinate water. However, the atmosphere of the Spring Festival began to desalinate with the banning of fireworks. Several years of drainage are required to desalinate the soil.