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78 items found (Showing 1 - 10)
  1. Key Resource 2013-06-01 Rick Burnette wrote an article for Issue 7(July 2010) of ECHO Asia Notes, titled “Charcoal Production in 200-Liter Horizontal Drum Kilns.” My article takes the charring process a step further by exploring the rapidly re-emerging world of biochar. Biochar is a form of charcoal, produced through...  
  2. Key Resource 2016-02-05 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...  
  3. Key Resource 2002-01-01 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 ...  
  4. Key Resource 2001-01-01 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...  
  5. Key Resource 2001-01-01 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,...  
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  7. Inspired by our Regional Impact Center in East Africa, ECHO first hosted an Appropriate Technology Fair at our annual International Agriculture Conference in 2019, featuring over 20 different technologies. Our delegates explored and interacted with these tools, expanding possibilities. In keeping...  
  8. The resources in this collection feature recent activities by ECHO Asia to research, construct, test, and distribute gasifier stoves. These stoves are currently constructed and available in two sizes (small and large) at the ECHO Asia office. Contact us at echoasia@echonet.org if you have...  
  9. 2018-05-15 This article is from ECHO Asia Note # 35. One of the best things that you can do to complete your sustainable farm or garden is to balance it with a small livestock unit. Livestock integration is fundamental #10 in my book Sustainable Agriculture in the Tropics. If you read ECHO Asia Notes,...  
  10. 1981-12-19 This is a question we have been asking for some time. The idea is to prepare pellets using an appropriate technology pelletizer, using waste biomass or charcoal made from it. We do not have much to report at this time except that an engineer has designed and is making a simple pelletizer for us....