The shittiest job
This is a photo journey about shit and gas. Yes, I’m it’s about my new biogas installation
Stage 1. Get a truck load of shit and two shit shovellers. Have the load delivered and shoveled out at your house
Cost of a truck load of very fresh cow dung Ksh 800. Cost of transport Ksh 1000, cost of shit shovellers Ksh 250 for half a day of really smelly work!
2. Get someone who knows what they are doing to set up your new flexible bag biogas digester
3. Get a bucket and a stick. Add shit and water 1:1 and then stir to the consistency of lumpy porrige
4. Pour the mix into the digester
5. Wait for gas to form
So what’s so great about this biogas digester? It’s small, mobile (you have to empty it before you move it), cheap (Costs Ksh 28000), no concrete involved, and its easy to install even if it’s a shitty job.
You simply can’t escape that. Every part of this system is locally and easily available.
How much gas will it produce?
You’ll have to watch this space to find out
What about other biogas systems?
The alternatives available in Kenya involve lots of concrete or huge rubber containers. Both are expensive and neither are mobile. Why do you need a mobile digester – well if you are renting a place, or if you are a nomadic person like a Masai family.
What if you don’t have cow dung? Then use goat dung, or chicken poop, or even elephant dung. Anything will work. You can even use kitchen wastes but you have to liquidize them first (which might use more energy than the gas produced).
Do you want to order a biogas system?
This system costs 28,000 for the unit, labour for installation, and depending on your location and dung price – you need a pick up load of fresh dung to get it started, and a bucket of dung every other day.
Leave a comment and I’ll get back to you.
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