Aeration (also called aerification or aeriation) is the process by which air is circulated through, mixed with or dissolved in a liquid or other substances that act as a fluid (such as soil). Aeration processes create additional surface area in the mixture, allowing greater chemical or suspension reactions.
Aeration of liquids (usually water) is achieved by:
passing air through the liquid by means of the Venturi tube, aeration turbines or compressed air which can be combined with diffuser(s) air stone(s), as well as fine bubble diffusers, coarse bubble diffusers or linear aeration tubing. Ceramics are suitable for this purpose, often involving dispersion of fine air or gas bubbles through the porous ceramic into a liquid. The smaller the bubbles, the more gas is exposed to the liquid increasing the gas transfer efficiency. Diffusers or spargers can also be designed into the system to cause turbulence or mixing if desired.
Porous ceramic diffusers are made by fusing aluminum oxide grains using porcelain bonds to form a strong, uniformly porous and homogeneous structure. The naturally hydrophilic material is easily wetted resulting in the production of fine, uniform bubbles.[1]
On a given volume of air or liquid, the surface area changes proportionally with drop or bubble size, the very surface area where exchange can occur. Utilizing extremely small bubbles or drops increases the rate of gas transfer (aeration) due to the higher contact surface area. The pores which these bubbles pass through are generally micrometre-size.
Uses of aeration of liquidsedit
Aerated tap water
To smooth (laminate) the flow of tap water at the faucet.
Refers to the process in which air is absorbed into the food item. It refers to the lightness of cakes and bread, as measured by the type of pores they contain, and the color and texture of some sauces which have incorporated air bubbles.
In wine tasting, a variety of methods are used to aerate wine and bring out the aromas including swirl wine in the glass, use of a decanter to increase exposure to air, or a specialized wine aerator.
Cider from Asturias is poured into the glass from a height of about 1 metre (el escanciado) to increase aeration.
See alsoedit
Look up aeration in Wiktionary, the free dictionary.
^Porous Ceramic Diffusers September 30, 2011, at the Wayback Machine
^. Archived from the original on 2014-02-25. Retrieved 18 June 2014.
^. Fortrans. Archived from the original on 17 June 2014. Retrieved 18 June 2014.
^Swistock, Bryan. . PSU. Archived from the original on 2 July 2014. Retrieved 18 June 2014.
December 20, 2023
aeration, also, called, aerification, aeriation, process, which, circulated, through, mixed, with, dissolved, liquid, other, substances, that, fluid, such, soil, processes, create, additional, surface, area, mixture, allowing, greater, chemical, suspension, re. Aeration also called aerification or aeriation is the process by which air is circulated through mixed with or dissolved in a liquid or other substances that act as a fluid such as soil Aeration processes create additional surface area in the mixture allowing greater chemical or suspension reactions Contents 1 Aeration of liquids 1 1 Methods 1 2 Uses of aeration of liquids 2 Aeration of liquid solids 2 1 Aeration of soil 3 Aeration in food 4 See also 5 ReferencesAeration of liquids editMain article Water aeration Methods edit Aeration of liquids usually water is achieved by passing air through the liquid by means of the Venturi tube aeration turbines or compressed air which can be combined with diffuser s air stone s as well as fine bubble diffusers coarse bubble diffusers or linear aeration tubing Ceramics are suitable for this purpose often involving dispersion of fine air or gas bubbles through the porous ceramic into a liquid The smaller the bubbles the more gas is exposed to the liquid increasing the gas transfer efficiency Diffusers or spargers can also be designed into the system to cause turbulence or mixing if desired Porous ceramic diffusers are made by fusing aluminum oxide grains using porcelain bonds to form a strong uniformly porous and homogeneous structure The naturally hydrophilic material is easily wetted resulting in the production of fine uniform bubbles 1 On a given volume of air or liquid the surface area changes proportionally with drop or bubble size the very surface area where exchange can occur Utilizing extremely small bubbles or drops increases the rate of gas transfer aeration due to the higher contact surface area The pores which these bubbles pass through are generally micrometre size Uses of aeration of liquids edit nbsp Aerated tap waterTo smooth laminate the flow of tap water at the faucet Production of aerated water or cola for drinking purposes Secondary treatment of sewage or industrial wastewater through use of aerating mixers diffusers 2 3 To increase the oxygen content of water used to house animals such as aquarium fish or fish farm To increase oxygen content of wort unfermented beer or must unfermented wine to allow yeast to propagate and begin fermentation To dispel other dissolved gases such as carbon dioxide or chlorine 4 In chemistry to oxidise a compound dissolved or suspended in water To induce mixing of a body of otherwise still water Pond aeration Aeration of liquid solids editAeration of soil edit Main article Soil aerationAeration in food editRefers to the process in which air is absorbed into the food item It refers to the lightness of cakes and bread as measured by the type of pores they contain and the color and texture of some sauces which have incorporated air bubbles In wine tasting a variety of methods are used to aerate wine and bring out the aromas including swirl wine in the glass use of a decanter to increase exposure to air or a specialized wine aerator Cider from Asturias is poured into the glass from a height of about 1 metre el escanciado to increase aeration See also edit nbsp Look up aeration in Wiktionary the free dictionary Winkler test for dissolved oxygenReferences edit Porous Ceramic Diffusers Archived September 30 2011 at the Wayback Machine Aeration Archived from the original on 2014 02 25 Retrieved 18 June 2014 Aeration Device Fortrans Archived from the original on 17 June 2014 Retrieved 18 June 2014 Swistock Bryan Methane Gas and Its Removal from Wells in Pennsylvania PSU Archived from the original on 2 July 2014 Retrieved 18 June 2014 Retrieved from https en wikipedia org w index php title Aeration amp oldid 1190775782, wikipedia, wiki, book, books, library,
