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Appropriate Technology Tech Notes

Appropriate Technology Technical Notes describe simple, small-scale technologies aimed at improving people's access to food, water, and shelter. Each document introduces and explains the general concept behind the technological solution, some even include instructions of how to construct your own.

  1. Living Fence

    Sumber Daya Utama
    01 Januari 1991 There are several reasons for establishing fences on the small farm. Fences are used to: To mark boundary lines between farms or next to roads. To separate adjacent fields used for distinct purposes To protect and keep animals from straying To protect crops from animal damage A fence represents a...
    Agroforestry Living Fence Fences

  2. Quail: An Egg & Meat Production System

    01 September 1998 Many families in the tropics must assume a major role in production of their own foodstuffs. Incomes are so low that purchase of food competes with purchase of necessary items that cannot be hand-made. Most governments in the tropics do not have the resources to guarantee even minimum food to all...
    Quail Eggs-Production Meat Eggs Poultry

  3. Sawdust Cookstove

    01 Januari 2001 There are many variations of sawdust cookstoves that have been used for many years both in North America and around the world. This sawdust cookstove model provides a low-cost, low-input method for producing a high intensity flame that will burn for up to five hours. The flame burns fairly clean...
    Cookstove Sawdust Appropriate Techno...

  4. Solar Dehydrator

    Sumber Daya Utama 01 Januari 2001 Often the biggest challenge faced by a tropical farmer is not in the production of a crop but rather in the preservation of the crop. Farmers may want to preserve a crop for future consumption or for sale at a time when the market will offer a higher price. Using a solar dehydrator is a simple,...
    Appropriate Techno... Food Processing Solar Drying Storage

  5. Haybaler

    01 Januari 2001 This simple device provides a method of manually producing bales of hay. Small-scale farmers may be interested in this technology because hay is both easier to store and easier to transport when it has been baled. Also, baled hay retains a higher nutrient content than hay that has been cut and...
    Haybaler Forage Hay Bale TN ECHO Resources Appropriate Techno... Hay

  6. BioSand Water Filter

    Sumber Daya Utama
    01 Januari 2001 Access to clean drinking water remains one of the greatest challenges in the world. The BioSand Filter is one method that can be used for purifying water at the household level. With this filter, contaminated water is filtered through a natural biological layer and then layers of sand, pebbles...
    Appropriate Techno... Water Filters Sanitation Health and Nutrition Health Biosand Filter

  7. Composting Toilets

    Sumber Daya Utama 01 Januari 2002 A composting toilet is any system that converts human waste into compost through the natural breakdown of organic matter. The photo above shows a composting toilet from the late 1800’s. Composting toilets provide a sanitary method to recycle human waste while conserving water and protecting the...
    Appropriate Techno... Composting Composting Toilets

  8. Rope Maker

    01 Januari 2003 Rope can be made from cord or string or even discarded plastic bags using a simple spindle to twist the materials together.
    Rope

  9. A-Frame Level

    Sumber Daya Utama
    01 Januari 2006 The A-Frame Level is a simple, yet accurate tool used for constructing contours on a hillside or slope. It is useful in the basic construction of hillside farming systems, such as the SALT systems, as well as for establishing level contours and drainage ditches. Level contours on a slope reduce...
    Appropriate Techno... A-Frame Level Highland Farming Contour Farming SALT

  10. PVC Water Pumps

    Sumber Daya Utama 01 Januari 2010 The purpose of this document is to show several water pump designs constructed from PVC pipe, explain how to manufacture them, and discuss pump performance and how to improve on these designs. What’s Inside: Pump Design Manufacturing Process Pump Performance Appendix
    Water Lifting Appropriate Techno... Water Pumps

  11. Treadle Grindstone

    01 Januari 2010 This treadle grindstone can spin a 6” abrasive wheel (of the type used on electric tool grinders) at up to 3000 rpm by means of a single treadle operated by the person using the grinder. Although rotational speed is similar to electric grinders, power is lower therefore short or light grinding...
    Treadle Power Grinder

  12. Water Harvesting through Sand Dams

    Sumber Daya Utama
    01 Januari 2011 A sand dam is a reinforced concrete wall built across a seasonal river to hold underground water in sand (see above photo of Nzaaya Muisyo sand dam, Eastern province, Kenya). It is initially built one meter high and up to 90 meters across. During the heavy and erratic seasonal rains, the water...
    Water Harvesting Sand Dam Rainwater Harvesting Water Storage Systems

  13. Charcoal Production in 200-Liter Horizontal Drum Kilns

    Sumber Daya Utama
    05 Februari 2016 Until recently, firewood was taken for granted in northern Thailand. With vast forests full of many types of trees, upland households could afford to be choosy concerning the wood they used for cooking. However, in recent years, more and more communities are facing restricted access to forest...
    Charcoal Appropriate Techno... Biochar

  14. Briquette Presses for Alternate Fuel Use

    Sumber Daya Utama 01 Januari 2000 Briquettes made from materials that cost little or no money to obtain, such as old newspaper or unutilized plant waste, can be a cost-effective alternate fuel to charcoal or firewood. This could alleviate the harsh pressures put on many forests for providing enough fuel energy to meet people’s...
    Appropriate Techno... Fuel Briquette Presses

  15. Forage Cutter

    01 Januari 2002 This simple forage cutter provides a mechanism to chop tough grasses or other forages to make them more palatable and digestible for livestock. This results in more efficient food conversion for animals and reduced wastage. It can also be used to chop materials for compost, silage, vermiculture,...
    Forage Storage Silage Appropriate Techno...

  16. Seed Drying Cabinet

    Sumber Daya Utama
    01 Januari 2002 Seed storage is often a problem in the tropics. However, if seeds can be properly dried, they will remain viable for a longer period of time. The seed drying cabinet described here can help improve the viability of seeds in storage. What's Inside: Introduction Description Diagram Observations
    Appropriate Techno... Seed Seed Saving Seed Drying

  17. How to Build a Kerosene Fired 180 Egg Incubator with 12V Air Circulation

    01 Januari 2003 Although this document will tell you how to build a particular incubator that I have used for several years, the ideas presented here should assist in building an incubator of any capacity. The orientation here is toward solving the problems in building a kerosene fired incubator in general....
    Appropriate Techno... Chickens Chicken Incubator Egg Incubator

  18. Bamboo for Construction

    Sumber Daya Utama
    17 Mei 2018 Many plants deemed as invaluable for the smallholder farmer offer nutritious food for the family, fodder for animals, or timber for construction. Remarkably, bamboo offers all three of these assets from the same perennial plant! This Technical Note will focus on how to most effectively harvest,...
    Bamboo preservation Bamboo Bamboo Construction

  19. Bamboo Load-Centered Wheelbarrow

    20 Desember 2023 A standard wheelbarrow, with the wheel at the front, places about half the weight of the load on the operator. A load-centered wheelbarrow places the wheel in the center of the load, shifting 90% or more of the weight to the wheel instead of the operator. This allows the device to be used for...
    Wheels-Design & Co... Water Transport Food Produce-Trans... Food-Transportation