Sign in to follow this  
Followers 0
Marina Schwarz

Waste to Fuel in Benin

Recommended Posts

The process is rather simple and works like a human body. You feed the digester with organic waste, animal excrement (such as chicken droppings). For one tonne of waste, you need 1000 liters of water (it's a 50/50 ratio). In order not to use clean water, we have developed a fish farming activity so we could use the enriched water coming from the ponds. It also provides fresh fish to local people. Biogas is then naturally produced and stocked in big bags before we can distribute it.” Scale it up, scale it up.

  • Like 1

Share this post


Link to post
Share on other sites

This might actually work in Africa; not so much for the industrialized world.  The reason is the labor costs of placing the waste material, and the costs of disposing of the waste material after the gas components are removed.  The cooking of the waste will take about 22 days, thus requiring vast amounts of land and digesters in order to handle the volumes in say a Western dairy farm  (cows produce some 130 lbs of manure per cos per day).  With Western volumes, it becomes impossible to construct enough of those digesters.  However, other Converters of manure are on the horizon, in the prototype stage, that will handle the waste. 

If what you are handling is chicken droppings, the volume will be small enough to manage.  The other advantage of removing chicken droppings rapidly from chicken coops is that rats and snakes are attracted to the droppings, and thus you remove hazards to the folks that are keeping the chickens (and live in close proximity to them).  Unless, of course, you don't mind a big snake curling up with you in bed at night!

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
You are posting as a guest. If you have an account, please sign in.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  
Followers 0