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A lawn aerator is a garden tool designed to create holes in the soil in order to help lawn grasses grow. [1] In compacted lawns, aeration improves soil drainage and encourages worms , microfauna and microflora which require oxygen .
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When an aerator is added to the faucet (or fluid stream), there is a region of high pressure created behind the aerator. Because of the higher pressure behind the aerator and the low pressure in front of it (outside the faucet), due to Bernoulli's principle there is an increase in velocity of the fluid flow.
An aerator is a mechanical device used for aeration, or mixing air with another substance, such as water or soil. The word aerator may also refer to: Faucet aerator; Floating surface aerator, used in wastewater treatment; Lawn aerator; Surface or subsurface aerator, used in water aeration; Wine aerator
The effectiveness of a surface aerator is limited to a small area as they are unable to add circulation or oxygen to much more than a 3-metre radius. This circulation and oxygenating is then limited to the uppermost portion of the water column, often leaving the bottom portions unaffected. Low speed surface aerators can also be installed on floats.
A deaerator plant. A deaerator is a device that is used for the removal of dissolved gases like oxygen from a liquid.. Thermal deaerators are commonly used to remove dissolved gases in feedwater for steam-generating boilers.