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A Portuguese language news video showing the retreading process on tires. Retreading allows tires to remain out of landfills, and reuse a large percentage of the material. Material cost for a retreaded tire is about 20% that of making a new tire. [3] About 90% of the original tires by weight is retained in retreaded tires.
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.
The chief reason for tire replacement is friction from moving contact with road surfaces, causing the tread on the outer perimeter of tires to eventually wear away. When the tread depth becomes too shallow, like for example below 3.2 mm (4/32 in), the tire is worn out and should be replaced.
Aside from recycling old tires, the old tire can be put to a new use. Old tires are sometimes converted into a swing for play. The innovative use allows for an easy way to find a purpose for an existing old tire not suitable for road use. [23] Used tires are also employed as exercise equipment for athletic programs such as American football. [24]
Soil aeration is the mechanism of improving the exchange of gases between the atmosphere and soil. Through soil microbial activity and plant root respiration , certain gases such as oxygen will be depleted in the soil, while others, such as carbon dioxide, will build up in the soil. [ 1 ]
Grass type determines the best time of year for aeration. Cool-season grasses (bluegrass, fescue and ryegrass) should be aerated in early spring or fall (March, April or September). Warm-season grasses (Bermudagrass, buffalograss, zoysiagrass) should be aerated in May through July. [4] It is recommend to space aerator holes 3 inches or less apart.
Coarse bubble aeration is a type of subsurface aeration wherein air is pumped from an on-shore air compressor. [ 6 ] through a hose to a unit placed at the bottom of the water body. The unit expels coarse bubbles (more than 2mm in diameter), [ 7 ] which release oxygen when they come into contact with the water, which also contributes to a ...
Burning tires is lower on the hierarchy of reducing waste than recycling, but it is better than placing the tire waste in a landfill or dump, where there is a possibility for uncontrolled tire fires or the harboring of disease vectors such as mosquitoes. [3] Tire Derived Fuel is an interim solution to the scrap tire waste problem.