SALT PRODUCTION

PROVIDES A NEW WAY
TO LOOK SOLAR
SALT PRODUCTION

Hyrec’s technology can be utilized to enhance productivity and optimize land use of solar evaporation. It can reduce land use by 70% and increase the productivity by up to 300%

Solar evaporation is one of the earliest methods used to produce salt. Seawater or brine evaporates up to its saturation level in open ponds with the help of sun and wind. Both evaporation and crystallization occur in open ponds. The final raw salt is further processed depending upon the grade requirement.

Solar evaporation is very economical but there are some requirements. It requires a favorable climatic condition like sunny and dry climates, low rainfall and high evaporation rate and long summer season. As a result, solar salt production is not feasible in some parts of the world where rainfall is high, climate is humid, solar radiation is low and land cost is high, for example, Japan, Taiwan, Korea, Indonesia making these countries among the largest importers of salt in the world.

Solar evaporation wastes substantial amounts of water during evaporation. Each ton of salt in the sea is dissolved in approximately 20-30 m3 of water. This water cannot be recovered in solar salt production. Recovering all or parts of this water enhances sustainability and economics of salt production. 

Hyrec provides an economical solution to production of salt and water from the sea. Hyrec’s patented Osmotically Assisted Reverse Osmosis technology can concentrate seawater near its saturation level (26% by weight) while recovering purified water. Hyrec can achieve this concentration with the power consumption of 6kWh per m3 of recovered water. 

Hyrec’s technology can be utilized to enhance productivity and optimize land use of solar evaporation. It can enhance productivity of solar evaporation fields by up to 300% or reduce land use by 70%. Purified water is produced as a by-product and can be utilized in potable and industrial applications. As a result, Hyrec OARO process enhances the economics of salt production and promotes regional sustainability.