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1 осаждение (хим.)
осаждение (хим.)
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
precipitation (chemical)
The process of producing a separable solid phase within a liquid medium; represents the formation of a new condensed phase, such as a vapour or gas condensing to liquid droplets; a new solid phase gradually precipitates within a solid alloy as a result of slow, inner chemical reaction; in analytical chemistry, precipitation is used to separate a solid phase in an aqueous solution. (Source: MGH)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-французский словарь нормативно-технической терминологии > осаждение (хим.)
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2 атмосферный процесс
атмосферный процесс
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
atmospheric process
Atmospheric processes are distinguished in physical and chemical processes and both types may be operating simultaneously in complicated and interdependent ways. The physical processes of transport by atmospheric winds and the formation of clouds and precipitation strongly influence the patterns and rates of acidic deposition, while chemical reactions govern the forms of the compounds deposited. (Source: PARCOR)
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Русско-французский словарь нормативно-технической терминологии > атмосферный процесс
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3 ухудшение качества пресных вод
ухудшение качества пресных вод
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
freshwater degradation
Pollution immediately or eventually involves the hydrological cycle of the earth, because even pollutants emitted into the air and those present in the soil are washed out by precipitation. Water is considered polluted when it is altered in composition or condition so that it becomes less suitable for any or all of the functions and purposes for which it would be suitable in its natural state. This definition includes changes in the physical, chemical and biological properties of water, or such discharges of liquid, gaseous or solid substances into water as will or are likely to create nuisances or render such water harmful to public health, safety or welfare, or to domestic, commercial, industrial, agricultural, fish or other aquatic life. It also includes changes in temperatures, due to the discharge of hot water. (Source: WPR)
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Русско-французский словарь нормативно-технической терминологии > ухудшение качества пресных вод
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4 физико-химическая очистка
физико-химическая очистка
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
physicochemical purification
Used to concentrate waste brines and to remove solid organics and ammonia from aqueous solutions. Physical treatment consists of reverse osmosis, dialysis, electrodialysis, evaporation, carbon, adsorption, ammonia stripping, filtration, sedimentation, and flocculation. Chemical treatment consists of ion exchange, neutralization, oxidation, reduction, precipitation, and calcination.
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Русско-французский словарь нормативно-технической терминологии > физико-химическая очистка
См. также в других словарях:
Precipitation — may refer to: * Precipitation (meteorology), rain, sleet, hail, snow and other forms of water falling from the sky * Precipitation (chemistry), the condensation of a solid from a solution during a chemical reaction * Precipitation (horse), a… … Wikipedia
Chemical precipitation powder — Chemical precipitation powder. См. Химически осаждаемый порошок. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) … Словарь металлургических терминов
Precipitation (chemistry) — This article is about the chemical phenomemon. For other uses, see Precipitation. Precipitate redirects here. For the album by Interpol, see Precipitate EP. Chemical Precipitation Precipitation is the formation of a solid in a solution or inside… … Wikipedia
Chemical reaction — Chemical reactions redirects here. For the 2007 television episode, see Chemical Reactions (Men in Trees). A thermite reaction using iron(III) oxide. The sparks … Wikipedia
chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… … Universalium
precipitation — /pri sip i tay sheuhn/, n. 1. the act of precipitating; state of being precipitated. 2. a casting down or falling headlong. 3. a hastening or hurrying in movement, procedure, or action. 4. sudden haste. 5. unwise or rash rapidity. 6. Meteorol. a … Universalium
Chemical equilibrium — In a chemical reaction, chemical equilibrium is the state in which the concentrations of the reactants and products have not yet changed with time. It occurs only in reversible reactions, and not in irreversible reactions. Usually, this state… … Wikipedia
chemical reaction — Any chemical process in which substances are changed into different ones, with different properties, as distinct from changing position or form (phase). Chemical reactions involve the rupture or rearrangement of the bonds holding atoms together… … Universalium
Precipitation (meteorology) — Long term mean precipitation by month In meteorology, precipitation (also known as one of the classes of hydrometeors, which are atmospheric water phenomena is any product of the condensation of atmospheric water vapor that falls under… … Wikipedia
chemical precipitation — formation of a separable solid substance from a solution, either by converting the substance into an insoluble form or by changing the composition of the solvent to diminish the solubility of the substance in it. The distinction between… … Universalium
chemical hydrology — or hydrochemistry Subdivision of hydrology that deals with the chemical characteristics of the water on and beneath the surface of the Earth. Water in all forms is affected chemically by the materials with which it comes into contact, and it can… … Universalium