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  1. Key Resource 2011-01-01 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...  
  2. 2011-04-01 This article is from ECHO Asia Note #9 Rick Burnette wrote an article for Issue 6 (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...  
  3. 2011-04-20 A sand dam provides a low-cost, low-tech and low maintenance water point with large payback in easily accessible water year round. Community ownership and involvement is integral in the introduction of a sand dam.  
  4. 2011-02-20  

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