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This collection contains resources and photos from ECHO Asia Biosand Water Filtration Workshops occuring on:

  • 15 October and 22 October 2021
  • 18 March 2022

Biosand Water Filtration Workshop flyer



  1. This quick video demonstrates loading and lighting a Biochar TLUD (Top Lit UpDraft) system. This video was captured at the ECHO Asia Small Farm Resource Center on 22 October 2021
  2. 18-03-2022
  3. These are a few images from the Biosand Water FiltrationWorkshop on 18 March 2022.CLICK HERE to return toworkshop resources.
  4. These are a few images from the Biosand Water FiltrationWorkshop on 15 October 2021 CLICK HERE to return toworkshop resources.
  5. These are a few images from the Biosand Water FiltrationWorkshop on 22October 2021 CLICK HERE to return to workshop resources.
  6. 01-01-2021 Constructing A Multi-Barrier Water Treatment System Using Local Materials
  7. 15-08-2012
  8. 01-01-2021 Contamination of drinking water sources by disease causing microbial agents and chemical toxicants such as pesticides, pharmaceuticals, industrial wastes and fuel components is a growing worldwide problem. Microbiological water contaminants cause diarrhea, flu and other diseases. Many synthetic...
  9. The purpose of this handbook is to show the construction and operation of a JRO (“Jolly Roger Oven”) char manufacture system. The JRO costs $50-90 to build, and uses the waste heat given off by a high temperature gasifier char oven (lower unit) to make a smaller batch of low temperature retort...