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Alkali Lake Chemical Waste Dump is a hazardous waste disposal site near the southwest edge of Alkali Lake, a seasonally dry playa in Lake County, Oregon. It is in the Summer Lake watershed. [ 1 ] The site has been the focus of Oregon Department of Environmental Quality (DEQ) efforts to remediate a complex mix of toxic chemicals.
Ion exchange using natural or synthetic resins removes calcium, magnesium and carbonate ions from water, typically replacing them with sodium, chloride, hydroxyl and/or other ions. Regeneration of ion-exchange columns with strong acids and alkalis produces a wastewater rich in hardness ions which are readily precipitated out, especially when in ...
Sodium chloride / ˌ s oʊ d i ə m ˈ k l ɔːr aɪ d /, [8] commonly known as edible salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chlorine ions. It is transparent or translucent, brittle, hygroscopic , and occurs as the mineral halite .
Ammonium chloride precipitates and is removed by filtration, and the solution is recycled to produce more sodium carbonate. Hou's process eliminates the production of calcium chloride. The byproduct ammonium chloride can be refined, used as a fertilizer and may have greater commercial value than CaCl 2, thus reducing the extent of waste beds.
Once in contact with decomposing solid waste, the percolating water becomes contaminated, and if it then flows out of the waste material it is termed leachate. [3] Additional leachate volume is produced during this decomposition of carbonaceous material producing a wide range of other materials including methane , carbon dioxide and a complex ...
A study found the mean concentration of sodium in softened water to be 278 mg/L. [24] In 2 liters of water—the amount of drinking water typically suggested for an average adult, this constitutes about 22% of the recommended sodium intake by the US CDC and may make a difference to those who need to significantly limit their sodium consumption.
Some of President-elect Donald Trump’s most vulnerable Cabinet picks are racing to smooth out or overwrite past statements before contentious Senate confirmation fights.
Nigari is produced from seawater after first removing sodium chloride. It contains mostly magnesium chloride, smaller amounts of magnesium sulfate (Epsom salt), potassium chloride, calcium chloride, and trace amounts of other naturally occurring salts. Nigari was the first coagulant used to make tofu in Japan. [5]
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