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A windpump is a wind-driven device which is used for pumping water. The windmills at Kinderdijk in the village of Kinderdijk, Netherlands is a UNESCO World Heritage Site De Olifant at Burdaard, Friesland. Windpumps were used to pump water since at least the 9th century in what is now Afghanistan, Iran and Pakistan. [1]
An Aermotor water-pumping windmill in Texas near Denton The defunct Aermotor Windmill at Gekeler Farms in Idaho. Besides the production of windmills from 6 to 16 feet (1.8 to 4.9 m) tall, [3] Aermotor also produces the towers on which a windmill sits. Four post towers come in steel (ranging from 21 to 60 feet or 6.4 to 18.3 meters tall) and ...
Water aeration is the process of increasing or maintaining the oxygen saturation of water in both natural and artificial environments. Aeration techniques are commonly used in pond, lake, and reservoir management to address low oxygen levels or algal blooms.
Dempsters was a privately held American company that over time produced submersible pumps, windmills and wind energy systems, water systems, recycling trailers, fertilizer equipment, and accessories. Originally named the Dempster Company and then the Dempster Wind Mill Company, it was incorporated under the laws of Nebraska in 1886 as Dempster ...
In this nation more than others, "windmill" is often used to refer to what are properly termed windpumps bringing up water for agriculture. This is at least partly due to usage by windpump builders Eclipse Windmill Company (1873) and Aermotor Windmill Company (1888, the sole surviving US "windmill" manufacturer [ 1 ] ).
With low speed surface aerators SOTE (Standard Oxygen Transfer Efficiency) is higher thanks to better mixing capacity. This mixing capacity of an impeller depends highly on the impeller diameter. Low speed surface aerator present such high diameter. Therefore SOTE for low speed surface aerators is about 2 to 2.5 kg O 2 /kWh.
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