Search results
Results from the WOW.Com Content Network
The trade-off is the speed. For a typical residential lawn (1/4 acre lot), it will take hours to finish. Some products also have issues with the tines becoming clogged with soil, which can slow down the operation even more. However, a well-made manual aerator offers advantages such as ease of use, selective aeration, and economy.
Aeration stage, where aerobic bacteria digest biological wastes. Settling stage allows undigested solids to settle. This forms a sludge that must be periodically removed from the system. Disinfecting stage, where chlorine or similar disinfectant is mixed with the water, to produce an antiseptic output. Another option is UV disinfection, where ...
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 ]
F210 Honda tiller 1949 Farmall C with C-254-A two-row cultivator A tractor-mounted tiller Tines close-up A cultivator pulled by a tractor in Canada in 1943. A cultivator (also known as a rotavator) is a piece of agricultural equipment used for secondary tillage.
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.
Activated sludge tank at Beckton sewage treatment plant, UK.The white bubbles are due to the diffused air aeration system. The activated sludge process is a type of biological wastewater treatment process for treating sewage or industrial wastewaters using aeration and a biological floc composed of bacteria and protozoa.
In most industrial wastewater and biosolids applications jet aerators exhibit superior oxygen transfer efficiency compared to other aeration technologies. The hydrodynamic conditions within the jet and fine bubble cloud produces continuous surface renewal at the gas/liquid interface resulting in higher alpha factors.
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 ...