Ash

Residue Ash
Ash produced during combustion in mass burn facilities or municipal solid waste incinerators. The handling of residue ash has attracted some controversy.

Ash- The mineral content of a product remaining after complete combustion.

ash - incombustible residue left over after incineration or other thermal processes.
asthma - a condition marked by labored breathing, constriction of the chest, coughing and gasping usually brought on by allergies.

Fly Ash - The fine ash waste collected from flue gases from coal burning power plants, smelters, and waste incinerators. Fly ash can be used as a cement substitute in concrete, thereby reducing embodied energy of the concrete.

FLY ASH A fine residue, left after trash is burned in an incinerator, which can be carried in the air. It can contain harmful or toxic substances such as dioxins, lead and mercury.
FR Freon.

Fly Ash: Non-combustible residual particles expelled by flue gas.
Fogging: Applying a pesticide by rapidly heating the liquid chemical so that it forms very fine droplets that resemble smoke or fog.

Fly Ash - The ash residue from high temperature combustion processes.

Fly ash
Non-combustible residue that results from burning fuels in an incinerator, boiler or furnace. It can include metal oxides, silicates and sulfur compounds, as well as many other chemical pollutants.

fly ash Non-combustible residual particles expelled by flue gas.
flyway The route taken by migratory birds, usually waterfowl, during migration.

Fly Ash: Air-borne solid particles that result from the burning of coal and other solid fuel.
Fossil Fuels: Fuels such as coal, oil, and natural gas; so-called because they are the remains of ancient plant and animal life.

soda ash
a common water treating chemical, sodium carbonate.
softening ...

F fly ash
Definition (english only)
Air-borne solid particles that result from the burning of coal and other solid fuel.

Ash
The non-combustible, mineral content of biomass. During combustion bottom ash is the ash that is left behind in, or under the grate or combustion region, or at the bottom of a gasifier.

Fly Ash
The noncombustible residue from the burning of pulverized coal. Fly ash is pozzolanic and is frequently used to replace a portion of the cement and reduce its density.
Fogging ...

Volcanic ash usually more or less stratified and in various states of consolidation.
tundra
A level or undulating treeless plain characteristic of arctic regions.

lime-soda ash softening process. This process converts
carbonate ions to bicarbonate ions and stabilizes the
solution against the precipitation of carbonate compounds.

This green ash seedling has simple juvenile leaves. It will later develop compound leaves.

Ash:very small, fine fragments of lava or rock that are blasted into the air during volcanic explosions. Asteroid:a rocky chunk of matter in orbit around the sun.

Dry deposition results when particles such as fly ash, sulphates, nitrates, and gases (such as SO2 and NOx), are either deposited or absorbed onto land surfaces. These gases can then be converted into acids when they contact water.

In extreme cases, they eject vast quantities of gases such as sulphur and nitrogen oxides and particulate matter, usually soot and mineral ash, high into the troposphere.

They also add carbon dioxide to the atmosphere, along with dust, ash, and other particles called aerosols.

If the water is not buffred to resist acids, lime or soda ash is added to raise the pH. Lime is the more common of the two additives because it is cheaper, but it also adds to the resulting water hardness.

Hazardous organic compounds are converted to ash, carbon dioxide, and water. Burning destroys organics, reduces the volume of waste, and vaporizes water and other liquids the wastes may contain.

Carbon disulfide is produced naturally by microbial activity in marshes and in volcanic ash. Since carbon disulfide does not adhere well to sediments, if it comes into contact with soil, it could percolate into groundwater, where it is very soluble.

In incinerator design, a chamber designed to promote the settling of fly ash and coarse particulate matter by changing the direction and/or reducing the velocity of the gases produced by the combustion of the refuse or sludge.

Most commercial glass is made from a molten mixture of soda ash, sand, and lime. A commonly-recycled material in glass bottles are easily recycled, other forms of glass that are treated (e.g. Pyrex) will not be accepted by many programs.

Incineration: A group of treatment technologies involving destruction of waste by controlled burning at high temperatures, e.g., burning sludge to reduce the remaining residues to an ash that can be disposed of safely on land, in some water, ...

Waste incineration
incineration of waste at high temperatures in two stages to promote efficient combustion to an ash and carbon dioxide ...

Recarbonation is the final stage in the lime-soda ash softening process. This process converts carbonate ions to bicarbonate ions and stabilizes the solution against the precipitation of carbonate compounds.

See also: Water, Air, Environment, Waste, Condition