1. 20 កក្កដា 2010 We often come across interesting material related to articles in EDN that could not fit into the available space in the issue. We share the most relevant of those here.
  2. 20 កក្កដា 2010 One high quality and universally available source of all the major macronutrients (nitrogen, phosphorus and potassium) is human urine. Using human urine as fertilizer is not unprecedented, but for various reasons in most countries it is not commonly considered as an option, especially for growing...
  3. 03 តុលា 2017 There are many appropriate building technologies available. How environmentally friendly are they? Earthquake resistant? Typhoon resistant? How can we introduce new materials to a traditional construction culture? Why would we want to produce our own materials? How can we make production...
  4. 01 មករា 2005 This manual has been compiled with the objective of presenting the basics required to undertake wastewater recycling. It is hoped that all will use it, whether they are householders, architects, engineers or professionals interested in spreading the word on ecological sanitation. 48 pages,...
  5. 01 មករា 1988 Our primary aim is to identify the important construction, installation, and maintenance considerations relative to compost toilets. Our goal is to put the reader in a better position to manage the decisions and subsequent tasks of compost toilet use. 51 pages, illustrated
  6. Some Thoughts on Sanitation and the Environment ”The Western type of toilet system cannot solve the problem of getting rid of excreta in Third World countries. Nor, indeed, has it solved those problems in the developed world. The Western system is expensive. It uses large amounts of clean water...
  7. Composting toilet (CT) technology is not new to Vanuatu. Before independence, some of the rural schools on Ambae and North Efate, like Onesua, were using these toilets. The CT design in this manual was adapted from a toilet used in Tonga, Kiribati and Fiji. There are many advantages CTs have over...
  8. 19 មករា 1999 We do not recycle waste. It’s a common misuse of semantics to say that waste is, can be, or should be recycled. Resource materials are recycled, but waste is never recycled. That’s why it’s called “waste.” Waste is any material with no inherent value that is discarded and has no further use. We...
  9. 01 មករា 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...
  10. 01 មករា 2007 Most people in rural Africa do not have access to safe toilets, and their health and well-being suffers as a consequence. There is an urgent need for the construction of simple, low-cost, affordable toilets that are easy to build and maintain. Notebook with 100 pages, photos