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Article summary:

Jhala DS:
"Solar Salt production process",
In CEISSA2006: (Oct 2006)

Keywords	: Solar Salt, Civilization, Constituent, Sulphates, Immemorial, Deg. Be, Concentration, Microorganisms, Algae, Crystallizers, Crystal
Abstract	The history of Solar Salt production can be traced back to the don of human civilization. In ancient time when seawater evaporated in pits, white layer was formed and it was found tasty. The white layer was nothing but “Solar Salt”. Like this it was the beginning of civilization as well it was the beginning of solar salt production. This has a long and intriguing history. It has shaped civilizations from the very beginning, and story is a glittering, often surprising part of the history of mankind. A substance so valuable it served as currency, influences the establishment of trade routes and cities, provoked and financed wars, secured empires and inspired revolutions. The extraction of salt from sea water consists of progressive evaporation of brine in large ponds using solar heat and natural wind. As the brine evaporates its concentration rises and constituent of salts crytallize in a set order. During the process, the sodium chloride fraction is separated from the brine over affixed concentration range in a series of flat rectangular ponds and deposits as uniform crust. The salt crust is harvested by variety of process ranging from simple hand labour to mechanical harvester. The principal salts that crystallize from concentrated brine along with sodium chloride are the chlorides and the sulphates of magnesium, calcium and potassium. The harvested salt in the form of wet crystals, washed with brine to remove insoluble matter as well as soluble impurities”. In this paper the Author has further discussed in detail the effect of deep charging as well as important data related to solar salt process based on series of experiments conducted by the author.
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