Aeration
The process of exposing compost material to air. Aeration is also crucial in the disposal of biodegradable waste. Air circulation and exposure to oxygen and other elements in the air is necessary to facilitate material breakdown.
Aeration zone: The zone immediately below the land surface where the pores contain both water and air, but are not totally saturated with water. Plant roots can capture the moisture passing through this zone, but it cannot provide water for wells.
Aeration Technique that is used with water treatment that demands oxygen supply, commonly known as aerobic biological water purification.
Aeration: The process of bubbling air through water or wastewater to remove impurities.
Aquifer: Areas underground where groundwater exists in sufficient quantities to supply wells or springs.
aeration soil
The process by which air in the soil is replaced by air from the atmosphere. In a well-aerated soil, the soil air is similar in composition to the atmosphere above the soil.
Aeration
the introduction of air into a liquid so that gaseous oxygen dissolves into the liquid
Aerator
a mechanical device that transfers oxygen from air into solution ...
Aeration tank
A chamber in which air is injected into wastewater to allow microscopic organisms to clean the water (see Activated Sludge).
Algae ...
aeration
the mixing or turbulent exposure of water to air and oxgen to dissipate volatile contaminants and other pollutants into the air.
aggressive water ...
aeration : A process which promotes biological degradation of organic matter in water. The process may be passive (as when waste is exposed to air), or active (as when a mixing or bubbling device introduces the air).
aeration (air-A-shun). The process of adding air to water. Air can be added to water by either passing air through water or passing water through air.
Aeration tank
A tank that is used to inject air into water.
Aerobic ...
Aeration
Passing air through a solid or liquid, especially a process that promotes breakdown or movement of contaminants in soil or water by exposing them to air.
Air stripping tower ...
Aeration
A process of supplying or introducing air/oxygen into a medium which promotes biological degradation of organic matter in water.
aeration period The theoretical time, usually expressed in hours, during which biomass, referred to as mixed liquor, is subjected to aeration in an aeration tank while undergoing activated sludge treatment.
Aeration Zone
The unsaturated zone just above the water table is the aeration zone.
Aeration ...
Re-aeration
Introduction of air into the lower layers of a reservoir. As the air bubbles form and rise through the water, the oxygen dissolves into the water and replenishes the dissolved oxygen.
preaeration A preparatory treatment of water or wastewater, prior to additional treatment, consisting of aeration to remove gases, add oxygen, promote flotation of grease, and aid coagulation.
Aeration: The process of bringing air into contact with a liquid (typically water), usually by bubbling air through the liquid, spraying the liquid into the air, allowing the liquid to cascade down a waterfall, or by mechanical agitation.
Aeration Intimate contact of the atmosphere and water to add air (oxygen) to the water. The term is also applied to gas stripping where an undesirable gas is removed from the water. See gas stripping.
...
A type of aeration that forces oxygen into sewage by pumping air through perforated pipes inside a holding tank.
Source: Terms of the Environment
...
Mechanical Aeration- Use of mechanical energy to inject air into water to cause a waste stream to absorb oxygen.
Mechanical Separation- Using mechanical means to separate waste into various components.
packed tower aeration. A method of treating water to remove volatile organic chemical (VOCs) contaminants. As water is mixed with air, VOCs move from water to air which then passes through carbon filters to trap the contaminants.
packed tower aeration A variation of the air stripping treatment process. Water flows down through packing material, while air flows upward to "strip" VOCs from the water. parts per million A measure of concentration of a dissolved substance.
PROPERTIES IMPORTANT FOR GROWTH - Aeration
Soil aeration provides area within the soil that is necessary for retention (capillary pores) and drainage (non-capillary) of water.
AERATION is often done by sending compressed air to an air diffuser at the bottom of the pond. The deep water rises to the surface and the water molecules grab oxygen from the atmosphere.
water table the uppermost level of the ground water, separating the zone of aeration (above) from the zone of saturation or ground water (below).
water vapor the gaseous state of water.
watershed the area drained by a river system.
Diffused Air- A type of aeration that forces oxygen into sewage by pumping air through perforated pipes inside a holding tank.
Dissolved Oxygen: Oxygen dissolved in water. The amount depends on temperature of the water, plant photosynthesis, plant and animal respiration, and physical aeration caused by tumbling. Measured in parts per million (mg/L).
Aerobic Treatment: Process by which microbes decompose complex organic compounds in the presence of oxygen and use the liberated energy for reproduction and growth. (Such processes include extended aeration, trickling filtration, ...
Unsaturated Zone: An area, usually between the land surface and the water table, where the openings or pores in the soil contain both air and water. Also called the zone of aeration. DIAGRAM ...
 See also: Water, Organic, Air, Treatment, Soil
|
