Introduction
Relevance of domestic biogas for
development
PPRE Oldenburg University
biogas compact course
April 26 – 28, 2011
Presenters
Biogas Practice Area
Dr. Henri Spanjers
Based in Wageningen, The Netherlands. Project Director with Lettinga
Associates Foundation (LeAF) at Wageningen University.
email: Henri.Spanjers@wur.nl
Willem Boers
Based in Addis Abeba, Ethiopia. Advisor to the Ethiopia National
Domestic Biogas Programme and RE advisor for SNV.
email: wboers@snvworld.org
Steven von Eye
Based in Groningen, the Netherlands. Energy Analyst for the Energy
Delta Institute
email: voneije@energydelta.nl
Felix ter Heegde
Based in Nairobi, Kenya. Regional biogas / RE advisor for SNV
email: fterheegde@snvworld.org
Domestic biogas
• Large scale dissemination of
household bio-digesters;
• Minimum daily feeding 20kg of
animal dung (cattle, buffalos,
pigs, chicken) possibly with a
toilet attachment, maximum
feeding about 200kg;
• Replacing about 5kg of firewood,
1.5 kg of charcoal or 0.6litre of
kerosene per 25kg dung/day;
• Investment cost in Asia between
US$ 350 and 800. In Africa
considerably more expensive.
Biogas Practice Area
Biogas: energy …
• Over 2 billion people
worldwide lack access to
clean, safe and sustainable
domestic energy services.
• Lack of access to
adequate, affordable,
reliable, safe and
environmentally benign
energy is a severe
constraint on development.
• A lack of access to clean
and affordable energy can
be considered a core
dimension of poverty.
Biogas Practice Area
and so much more … :
Biogas Practice Area
MDG & domestic biogas I
Biogas Practice Area
MDG 1 Eradicate extreme poverty and hunger
Target 1
To halve extreme poverty
– Construction and installation of biogas creates employment for
landless rural people.
– Biogas saving on the use of traditional cooking fuels increases the
availability of these fuels for (very) poor members of the community.
MDG 3 Promote gender equality and empower women
Target 4
Eliminate gender disparity in education.
– Domestic biogas reduces the workload –collection of firewood,
tending the fire, cleaning soot of cooking utensils - with 2 to 3 hours
per household per day.
– Biogas illumination is highly appreciated for lighting, facilitating
reading / education / economic activities during the evening.
MDG & domestic biogas II
MDG 6 Combat HIV/AIDS, malaria and other diseases
Target 8
Halt/reverse incidence of malaria and other diseases.
• Biogas substitutes conventional
energy sources, virtually
eliminating indoor smoke
pollution and, hence, the related
health risks (e.g. respiratory
diseases, eye ailments, burning
accidents).
• Biogas greatly reduces the
workload involved in the
collection of traditional cooking
fuels like wood.
Biogas Practice Area
MDG & domestic biogas III
• Biogas significantly improves the
sanitary condition of farm yard
and its immediate surrounding,
lowering the exposure of
household members to harmful
infections generally related with
polluted water and poor
sanitation.
• Proper application of bio-slurry
will improve agricultural
production (e.g. vegetable
gardening), thus contributing to
food security for the community.
Biogas Practice Area
MDG & domestic biogas IV
MDG 7 Ensure environmental sustainability
Target 9
Integrate the principles of sustainable development into
country policies and programmes and reverse the loss of environmental
resources.
• Particularly larger biogas
dissemination programmes
have a considerable
governance component.
As such, they positively
influence national policies
on sustainable
development (e.g.
agriculture, forestation) as
well as promote
participatory governance
involving women and other
disadvantaged groups.
Biogas Practice Area
MDG & domestic biogas V
Biogas Practice Area
MDG 7 Ensure environmental sustainability
Target 10
Halve the proportion of people without sustainable access
to safe drinking water and basic sanitation.
• Biogas reduces fresh
water pollution as a result
of improved management
of dung. Connection of the
toilet to the biogas plant
significantly improves the
farmyard sanitary
condition.
Development at different levels
•
•
•
•
Biogas Practice Area
Farmers;
Craftsmen, engineers and maintenance workers;
Governments;
International Community.
Course Topics
Technical aspects
bio-chemical process, plant designs, plant sizing,
appliances
Economic aspects
financial returns, subsidies, emission calculations and
marketing of credits
Large scale dissemination
programme set-up / sector development
Biogas Practice Area
Biogas Practice Area
Download biogas simulation software from:
http://envirosim.com/bw31setup.exe
All materials will be available by the end of the
week on: http://sites.google.com/site/biogas4all/ .
We hope you’ll enjoy the course,
Henri,
Steven,
Felix.