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The Congo Project
The Congo Project
Details
Commenced:
01/10/2010
Submitted:
02/11/2011
Last updated:
07/10/2015
Location:
Buyungule Pygmy Community, Kivu Province, CD
Website:
www.congoproject2011.blogspot.com
Climate zone:
Wet/Dry Tropical





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The Congo Project

The Congo Project

Kivu Province, CD

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Back to The Congo Project

Introducing... solar ovens, water filter and SODIS!

Project: The Congo Project

Posted by Xavier Fux over 10 years ago

We built a solar oven made out of cardboard, and showed them hot to purify water through the SODI System. We also showed them how to make a filter with a bucket full of sand, gravel and active carbon

 Who said last days weren't productive?? Before leaving, we wanted to provide the Pygmies with some very useful tools that can greatly simplify things for them:

 

  1. Simple, easy-to-build solar ovens (to reduce the need for firewood and all the negative implications that come with it)
  2. Sand-gravel-charcoal water filter (to clean the water from the 20,000L pond in order to use it for washing and other uses)
  3. Solar disinfection system for water (to purify water from the 1000L tank)

 

We started off with the solar ovens, showing them how to build 2 different, simple models using only cardboard, aluminum, black spray paint, a piece of plastic or glass and adhesive tape. They helped us assemble both models and we provided enough materials for them to make about 10 more solar ovens. We explained that all they need is 30 minutes of strong sunlight (which we didn't get today, unfortunately...).  

They were thrilled at how simple it was and at the idea of cooking without  firewood!! Firewood requires walking long distances to collect and carry home, and is extremely uncomfortable to cook with because of the constant smoke, which is harmful to the eyes and lungs. They asked a lot of questions and even considered building some more long-lasting solar ovens out of wood.

We then demonstrated how to assemble and use a sand-gravel-charcoal filter, so they can eliminate silt from the water they collect in the new pond and use it for washing or anything else they need. The filter consists of 2 buckets placed one on top of the other. The top one has holes punched in the bottom, and inside are layers of sand, gravel and charcoal, covered with a layer of cloth. Water is slowly poured into the filter (goes through the cloth and the layers) and is collected in the lower bucket, almost fully transparent and free of silt.

Finally, we showed a simple method of purifying water using a plastic bottle and black paint (the Solar Disinfection System or SODIS). This is an effective water treatment method that consists simply in filling clean plastic bottles with water, exposing them to the sun for at least 6 hours, during which the water reaches a temperature of about 65°C (enough to kill most pathogenic contamination), resulting in water that is safe to drink.

SODIS is recommended by the World Health Organization and has been implemented successfully in many underdeveloped countries. The process is shown below:

 After the three final demonstrations, it was time to say goodbye... we  once again explained the importance of maintaining everything that was put in place  and continuing the work in cycles in order to have a constant food production for the village. We stressed the importance of watering the raised beds, keeping the pond clean, keeping the  1000L tank closed and gutters free of leaves, taking care of the nursery and replanting seeds 2 weeks before harvesting the grown vegetables, etc... 

We thanked them all for allowing us to work with them and for working so well with us... we encouraged them to continue, with Jeph's help, keeping the 2 fields packed with food into the future, and applying what they learned to plant on all the other open spaces they have on site. We told them we were impressed by how fast they learned the new techniques and reminded them how LUCKY they are to live on such a FERTILE land...  there are so many places in the world where people struggle to produce food in the most difficult climates and conditions... living in Congo, all they need is to learn to love their work, and they can achieve long-lasting abundance!!

Chizungu thanked us and welcomed us to return one day, so they can greet us with vegetables from their own produce!!!



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Comments (2)

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Verity Bachmann
Verity Bachmann : Inspiring work!
Posted about 10 years ago

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Alexandra Berendt
Alexandra Berendt : Have you heard anything since the end of your time there? Would love to hear how things are going now!
Posted about 10 years ago

Report Alexandra Berendt on Introducing... solar ovens, water filter and SODIS!

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