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  1. 2010-01-01 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
  2. This article is from ECHO Asia Note #4 Working together with Thai Care, the children's ministry of the Rain Tree Foundation, Meribah Ram Pump is engaged in various community development projects in northern Thailand. A major focus is to make simple, sustainable technology, such as ram pumps and...
  3. 2009-03-01 Amazon.com Description This do-it-yourself guide is an invaluable resource for designing, building, and maintaining water tanks, cisterns, and ponds, and sustainably managing groundwater storage. It will assist you with handling your independent water system, fire protection setup, and disaster...
  4. Rating: 3.0 - 1 Vote
    2009-10-20 Bill Mebane corresponded with ECHO’s Farm Manager Danny Blank regarding some questions about tilapia production. We excerpt some of the correspondence here, for your information. Danny had asked for advice and feedback about ideas for a flow through, green water system using periphyton...
  5. 2009-01-20 All plants need certain mineral elements for proper growth, development, and maintenance. The basic structure of all organisms is built of carbon (C), oxygen (O) and hydrogen (H). Plants obtain these elements from water (H2O) in the soil and carbon dioxide (CO2) in the air, so no input is...
  6. Rating: 3.0 - 1 Vote
    2009-01-20 Porridges are made by boiling traditional starchy foods such as cornmeal, rice, oatmeal, potato, or ground sorghum in water. However, it can be difficult for infants to swallow. Enzymes in malted barley flour (germinated barley seeds that have been carefully dried and ground into a powder) can...
  7. Rating: 5.0 - 1 Vote
    2009-08-21 Most water and sanitation facilities used by households or operated by small-scale enterprises were built without external support. This shows there are alternatives to the large centralized conventional systems. More importantly, small-scale solutions have proven to be cost effective....
  8. 2009-12-15 Worldwide there are 1.1 billion people who do not have a way to get clean drinking water. Every year, 1.8 million people die from diarrheal disease, and it is estimated that 88% can be attributed to the lack of clean drinking water[1]. This project will partner with the non-profit organization...
  9. 2010-01-01 Farming communities in the semi-arid tropical regions of Africa are becoming particularly vulnerable and face enormous challenges for their survival. Climate change, diminishing and unreliable rainfall, traditional mono culture cropping farming practices, high population growth, frequent famines...
  10. 2009-07-01 Throughout the world, and even in the United States, engineers are tackling the challenges of sustainable development and public health - challenges that engineers are uniquely qualified to address. Yet engineers working abroad on development projects often lack the knowledge and information to...