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DYID: Do-it-yourself-Digester

Dear all,

Africa Biogas Company likes to keep things simple. Part of that philosophy is to share information with you. ABC starts to share a lot of information that could be beneficial for you.

Therefore, Africa Biogas Company publishes a weekly manual for building your own do it yourself digester. Whether you are in a developing country or in a western country or an NGO, at Africa Biogas Company we are convinced that you can do it. Yourself.

There are several types of household digesters known and available. ABC has constructed the following already:

– Concrete dome digester

– Floating drum digester

– PVC bag digester

– Drum digester (similar to concrete dome, but than constructed from a water tank).

For each of these types ABC is writing a series of constructing manuals and documents. But the main thing remains: you should do it yourself.

Concrete dome digester day 1: Planning and design

The first step to for constructing a concrete dome digester is to do some basic

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Looking at problems as if they aren’t?

Dear readers,

I want to share with you the passion I have for biogas technology in African countries. A simple technology for improving lives in many countries and eliminating the problem of organic “waste”.

It has been silent for some time.This time has been beneficial as now I know what we want: sharing the knowledge and information I have about biogas systems to make things work. And not just work for 1 month, but work as long as necessary. So, this is a new point for ABC. And now we’re doing something we’re absolutely good in. Sharing, sharing, sharing. all the knowledge I have about biogas systems I am sharing for your benefit. You can do much more than you think. It is my dream that I can help you discover so. My focus area is organic “waste”. My dream? That you gain the control about your organic “waste”. I am certain you can. And you know what? Together it is possible.

“Waste” or “wasted”?

As you already see, I am having trouble with the word “waste”. During my course I had at the Wageningen University, I became aware that “..waste does not exist…”. (for the course details: I am absolutely inspired by the Cradle 2 Cradle concept. (more information on that one can be found here: )

I think it is wasted that we think

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there is waste. To me, waste is some kind of cover for a problem that we don’t want to accept. That the products that are used are so complicated that at the end of use we can’t dismantle them easier than burying or burning them. I am absolutely certain that is a wasted philosophy. This is why Cradle to Cradle is so inspiring to me. I do think of the world as a place where ‘”waste” is not there. Waste = energy. Lots of energy. The “waste” you know today contains the resources you need tomorrow. An this is exactly why ABC goes on with the biogas principle. Because it does just that. The “waste” of today is used for generation of the “resources” you need tomorrow. What is biomass today could be your source of energy tomorrow. And yes, this is also part of Biofuels. Not just grown or produced from crops, but already there.


Let me clear with you: there is absolutely a problem with waste. And also with the concepts that are invented for it. Because a concept is nice, but what is it worth when it is not put into practice?

ABC takes you with. We have solutions for organic waste that are simple, reliabe and easy to make. So easy that you can make them. And then we’re back at the start: by sharing knowledge you are benefiting from ABC.

Are you ready for the journey?

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Website Africa Biogas Company updated!

Africa Biogas Company has given its website a small update. We would highly appreciate if you can express your opinions whether positive or negative. We strive towards a

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Thank you in advance.

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How to build an XXL Digester (Part 65)

Hello all,

In the process of learning about Biogas, I am sure we’re at about step 65. Last week I have been very busy with assisting a Dutch installation team here in Suba, Kenya.

This team was here to install a 4000m3 anaerobic digester. Yes, 4000m3. It is a big boy. In my thesis research, this digester is the subject

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of my research.

For now, we’ve just been busy with the installation. That is why I do have some pictures. So, less talk today, but much more to see. The next weblog I’ll write something about building a digester as the ones in Mozambique, which are 700 times smaller than this huge balloon.


Inspection of the Pit and the Bag
People at work in the Biogas Pit
Shovel entering the Put
Wooden frame in the pit for measuring the walls
Building crane lifting the biogasburners
People unfolding the Digester
People turning the digester
People pulling the digester in shape
Mixer in the Digester

And now we need to fill it and start it. Maybe in three months we have some gas, but I think it can take up to 6 months…Let’s see what we can do…

Concluding: I am very happy and feel very much at home. In the evening I see hundreds of lights from the fisherman at Lake Victoria, and in daytime I have seen a chameleon, Sea-Eagle and tons of monkeys.

Sea Eagle flying aboveLake Victoria
Chameleon in Suba, Kenya

The food is brilliant here, they even serve pizza, and the accommodation absolutely fantastic. All the building equipment I am about to learn to handle. That saves me quite a lot of money, because in Holland I pay too much for that…

And yes, here a Toyota Landcruiser is what is taking me from A to B. I love it!


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Changing the change?

Dear Friends,

I had almost written a weblog about the questions you walk with, when you’re in Africa. But, then I decided not to always question the system that even Africa is put in. I just do what like, and leave the questions to those studying to research questions. (including me sometimes).

First: the Biogas project goes on really well. I am joyfully surprised how motivated the local people work on the digesters. For those who are not familiar with the project: My task is to supervise the construction of three floating drum digesters. These digesters can be compared to a stomach of a cow, with the difference that the methane gases are kept and stored. Furthermore, the digestion or processing of the feedstock (inputs) takes place in a better and more efficient process, which eventually leads to an better output (bio-slurry).

Continue reading Changing the change?

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Home Sweet Home

Home Sweet Home


It has been one and a half week ago that the plane landed in Mozambique. It was night, hot and humid. The people who were picking us up, knew we were there, because the plane was of big size.

The first thing I observed was: Portugese! Oops. I can’t talk Portugese! Happily there are people around who can do a little translation. We then drove to our 1 night hotel. The next morning I woke up and walked to the beach. This was what I saw:

Continue reading Home Sweet Home