Treadle pump

Treadle pump

A treadle pump is a human-powered pump designed to lift water from a depth of seven meters or less. A treadle is a lever device pressed by the foot to drive a machine, in this case a pump. The treadle pump can do most of the work of a motorized pump, but costs considerably less (75%) to purchase. Because it needs no fossil fuel (it is driven by the operator's body weight and leg muscles), it can also cost less (50%) to operate than a motorized pump. It can lift five to seven cubic meters of water per hour from wells and boreholes up to seven meters deep and can also be used to draw water from lakes and rivers. Most treadle pumps used are of local manufacture, as they are simple and inexpensive to build.

In some areas, the treadle pump can greatly increase the income that farmers generate from their land, both by extending the traditional growing season and by expanding the types of crops that can be cultivated.

Standard treadle pumps are suction pumps, and were first developed in the early 1980s in Bangladesh. Most treadle pumps manufactured in Africa are pressure treadle pumps, a modification to the original design that means water is forced out of the pump under pressure. Pressure treadle pumps are more versatile, as they allow farmers to pump water uphill, over long distances, or to elevated tanks.

Lately, special, low cost treadle pumps have been developed in Nepal, under the guidance of Practical Action, which have high efficiency and low-cost. [http://dev.practicalaction.org/?id=appeal_nepalpump Treadle pump] ]

External links

* [http://www.ashdenawards.org/winners/idei Ashden Award, 2006 winner] - award given to International Development Enterprises (IDEI), India, for their work in developing treadle pump technology.

References


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Treadle — A treadle [from OE tredan = to tread] is a part of a machine which is operated by the foot to produce reciprocating or rotary motion in a machine such as a weaving loom (reciprocating) or grinder (rotary). Treadles can also be used to power water …   Wikipedia

  • Pump — For information on Wikipedia project related discussions, see . A pump is a device used to move gases, liquids or slurries. A pump moves liquids or gases from lower pressure to higher pressure, and overcomes this difference in pressure by adding… …   Wikipedia

  • Hand pump — This article is about water and air pumps. For the beer dispensing device, see Beer engine. A rural handpump in Belgium. Hand pumps are manually operated pumps; they use human power and mechanical advantage to move fluids or air from one place to …   Wikipedia

  • foot pump — noun 1. : a portable hand pump held in place by the foot : stirrup pump 2. : a pump operated by a treadle * * * foot pump, a portable pump, operated by hand, that has a bracket or stirrup for holding it in place by the pressure of the foot …   Useful english dictionary

  • Climate Care — Type Private Industry Green Founded 1997 Founder(s) Mike Mason …   Wikipedia

  • Tropical agriculture — Worldwide more human beings gain their livelihood from agriculture than any other endeavor; the majority are self employed subsistence farmers living in the tropics. While growing food for local consumption is the core of tropical agriculture,… …   Wikipedia

  • International Development Enterprises — [http://www.ideorg.org IDE (International Development Enterprises)] , founded in 1981, by Paul Polak, is an international not for profit corporation devoted to the manufacture, marketing, and distribution of affordable, scalable micro irrigation… …   Wikipedia

  • Water well — Village pump redirects here. For information on Wikipedia project related discussions see Wikipedia:Village pump. Water well at the Wald monastery in Germany. A water well is an excavation or structure created in the ground by digging, driving,… …   Wikipedia

  • Appropriate technology — (AT) is technology that is designed with special consideration to the environmental, ethical, cultural, social and economical aspects of the community it is intended for. With these goals in mind, AT typically requires fewer resources, is easier… …   Wikipedia

  • Shadoof — A shadoof or shaduf (an Arabic word, شادوف, šādūf ; also anciently known by the Greek name κήλων or κηλώνειον, kēlōn or kēlōneion ) is an irrigation tool. A less common English translation is swape. [cite web url =… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”