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Saltern
A saltern is an area or installation for making salt. Salterns include modern salt-making works (saltworks), as well as hypersaline waters that usually contain high concentrations of Halophile, halophilic microorganisms, primarily haloarchaea but also other halophiles including algae and bacteria. Salterns usually begin with seawater as the initial source of brine but may also use natural saltwater springs and streams. The water is evaporated, usually over a series of ponds, to the point where sodium chloride and other salts precipitate out of the saturated brine, allowing pure salts to be harvested. Where complete evaporation in this fashion was not routinely achievable due to weather, salt was produced from the concentrated brine by boiling the brine. Background Earliest examples of pans used in the solution mining of salt date back to prehistoric times and the pans were made of ceramics known as briquetage. Later examples were made from lead and then iron. The change from lead ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salt Evaporation Pond
A salt evaporation pond is a shallow artificial salt pan designed to extract salts from sea water or other brines. The salt pans are shallow and expansive, allowing sunlight to penetrate and reach the seawater. Natural salt pans are formed through geologic processes, where evaporating water leaves behind salt deposits. Some salt evaporation ponds are only slightly modified from their natural version, such as the ponds on Great Inagua in the Bahamas, or the ponds in Jasiira, a few kilometres south of Mogadishu, where seawater is trapped and left to evaporate in the sun. During the process of salt winning, seawater or brine is fed into artificially created ponds from which water is drawn out by evaporation, allowing the salt to be subsequently harvested. The ponds also provide a productive resting and feeding ground for many species of waterbirds, which may include endangered species. However, Ghanaian fisheries scientist RoseEmma Mamaa Entsua-Mensah also noted that salt win ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halophile
A halophile (from the Greek word for 'salt-loving') is an extremophile that thrives in high salt In common usage, salt is a mineral composed primarily of sodium chloride (NaCl). When used in food, especially in granulated form, it is more formally called table salt. In the form of a natural crystalline mineral, salt is also known as r ... concentrations. In chemical terms, halophile refers to a Lewis acids and bases, Lewis acidic species that has some ability to extract halides from other chemical species. While most halophiles are classified into the domain Archaea, there are also bacterial halophiles and some Eukaryote, eukaryotic species, such as the alga ''Dunaliella salina'' and fungus ''Wallemia ichthyophaga''. Some well-known species give off a red color from carotenoid compounds, notably bacteriorhodopsin. Halophiles can be found in water bodies with salt concentration more than five times greater than that of the ocean, such as the Great Salt Lake in Utah, Owe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haloarchaea
Haloarchaea (halophilic archaea, halophilic archaebacteria, halobacteria) are a class of prokaryotic archaea under the phylum Euryarchaeota, found in water saturated or nearly saturated with salt. 'Halobacteria' are now recognized as archaea rather than bacteria and are one of the largest groups of archaea. The name 'halobacteria' was assigned to this group of organisms before the existence of the domain Archaea was realized, and while valid according to taxonomic rules, should be updated. Halophilic archaea are generally referred to as haloarchaea to distinguish them from halophilic bacteria. These halophilic microorganisms require high salt concentrations to grow, with most species requiring more than 2M NaCl for growth and survival. They are a distinct evolutionary branch of the Archaea distinguished by the possession of ether-linked lipids and the absence of murein in their cell walls. Haloarchaea can grow aerobically or anaerobically. Parts of the membranes of haloarc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Salt
Salt, also referred to as table salt or by its chemical formula NaCl (sodium chloride), is an ionic compound made of sodium and chloride ions. All life depends on its chemical properties to survive. It has been used by humans for thousands of years, from food preservation to seasoning. Salt's ability to Salting (food), preserve food was a founding contributor to the development of civilization. It helped eliminate dependence on seasonal availability of food, and made it possible to transport food over large distances. However, salt was often difficult to obtain, so it was a highly valued trade item, and was considered a form of currency by many societies, including Rome. According to Pliny the Elder, Roman soldiers were paid in salt, from which the word salary is derived, although this is disputed by historians. Many salt roads, such as the Via Salaria in Italy, had been established by the Bronze Age. All through history, availability of salt has been pivotal to civilization. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seawater Greenhouse
A seawater greenhouse is a greenhouse structure that enables the growth of crops and the production of fresh water in arid regions. Arid regions constitute about one third of the Earth's land area. Seawater greenhouse technology aims to mitigate issues such as global water scarcity, peak water and soil becoming salted. The system uses seawater and solar energy, and has a similar structure to the pad-and-fan greenhouse, but with additional evaporators and condensers. The seawater is pumped into the greenhouse to create a cool and humid environment, the optimal conditions for the cultivation of temperate crops. The freshwater is produced in a condensed state created by the solar desalination principle, which removes salt and impurities. Finally, the remaining humidified air is expelled from the greenhouse and used to improve growing conditions for outdoor plants. Projects The Seawater Greenhouse Ltd The seawater greenhouse concept was first researched and developed in 1991 by C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Bay Salt Works
The South Bay Salt Works is a salt factory in southern San Diego, California, San Diego near Chula Vista, California, Chula Vista, in the South Bay, San Diego, South Bay region of San Diego County, California. Initially operating under the name La Punta Salt Works operations dating back to at least 1871, for a period of time it was the sole supplier of salt for Southern California. In 1902 it was purchased and renamed Western Salt Company, and later had narrow-gauge rail installed. During the rest of the 20th century, it was California's second-largest salt producer. The land was purchased by the San Diego International Airport, San Diego County Regional Airport Authority in 1999 and transferred to the United States Fish and Wildlife Service. In 2000, it assumed its current name and has continued salt harvesting operations. Water evaporated at the salt works comes from the Pacific Ocean. Since its inception, more than a million tons of salt has been harvested. The salt ponds ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2000 BC
The 20th century BC was a century that lasted from the year 2000 BC to 1901 BC. The period of the 2nd Millennium BC Events * c. 2000 BC: ** Farmers and herding, herders traveled south from Ethiopia and settled in Kenya. ** Dawn of the Capacha Culture in modern-day Colima, Mexico. ** Humans settle in Matanchén, modern day Nayarit, Mexico ** Arrival of the ancestors of the Latins (Italic tribe), Latins in Italy. ** Town of Mantua was founded. ** First of the Minoan civilization, Minoan palaces on Crete. Site of palace complex Knossos started to become occupied. ** Bronze Age began in north History of China#Bronze Age, Ancient China. ** Middle Jōmon period ended in Japan. ** Decline of Harappan civilization began. ** The Harappa Torso was sculpted by a member of the Indus Valley culture. ** Vessel, from Asahi Mound, Toyama Prefecture, was made. Jōmon period. It is now kept at Collection of Tokyo University. ** Dogū, from Kurokoma, Yamanashi Prefecture, was made. Jōmon per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
India
India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since 2023; and, since its independence in 1947, the world's most populous democracy. Bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west; China, Nepal, and Bhutan to the north; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is near Sri Lanka and the Maldives; its Andaman and Nicobar Islands share a maritime border with Thailand, Myanmar, and Indonesia. Modern humans arrived on the Indian subcontinent from Africa no later than 55,000 years ago., "Y-Chromosome and Mt-DNA data support the colonization of South Asia by modern humans originating in Africa. ... Coalescence dates for most non-European populations averag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salt March
The Salt march, also known as the Salt Satyagraha, Dandi March, and the Dandi Satyagraha, was an act of Non violence, non violent civil disobedience in British Raj, colonial India, led by Mahatma Gandhi. The 24-day march lasted from 12 March 1930 to 6 April 1930 as a direct action campaign of tax resistance and Nonviolent resistance, nonviolent protest against the History of the salt tax in British India, British salt monopoly. Another reason for this march was that the Civil Disobedience Movement needed a strong inauguration that would inspire more people to follow Gandhi's example. Gandhi started this march with 78 of his trusted volunteers. The march spanned , from Sabarmati Ashram to Dandi, Navsari, Dandi, which was called Navsari at that time (now in the state of Gujarat). Growing numbers of Indians joined them along the way. When Gandhi broke the British Raj history of the salt tax in British India, salt laws at 8:30 am on 6 April 1930, it sparked large-scale acts of civil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alberger Process
The Alberger process is an industrial method of producing salt from rock salt. Method The Alberger process begins by heating brine under high pressure with a series of heaters. Impurities are removed using a tank filled with granite cubes called a graveler. When the pressure is released, salt crystals form in a steam-heated evaporation pan. This results in a three-dimensional pyramid-shaped flake salt, which has low bulk density, high solubility, and good adhesion. According to a scientific article from 1946, the process results in salt of high purity but "is the least economical method for the production of a given quantity of salt." Production Cargill operates a plant in St. Clair, Michigan that is the only place in the United States that manufactures such salt using the Alberger process. Diamond Crystal Kosher Salt is a brand of salt produced using the Alberger process. Because of its shape, density and flavor characteristics, it is often a preferred choice by snack food manuf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sodium Chloride
Sodium chloride , commonly known as Salt#Edible salt, edible salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. It is transparent or translucent, brittle, hygroscopic, and occurs as the mineral halite. In its edible form, it is commonly used as a condiment and curing (food preservation), food preservative. Large quantities of sodium chloride are used in many industrial processes, and it is a major source of sodium and chlorine compounds used as feedstocks for further Chemical synthesis, chemical syntheses. Another major application of sodium chloride is deicing of roadways in sub-freezing weather. Uses In addition to the many familiar domestic uses of salt, more dominant applications of the approximately 250 million tonnes per year production (2008 data) include chemicals and de-icing.Westphal, Gisbert ''et al.'' (2002) "Sodium Chloride" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim . Chem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
