SunFire is proud to introduce our “Biobag”, it is a biogas(anaerobic) digester that converts garden, kitchen and even human waste into methane gas that can be used for cooking, lighting and heating. The “digestate” (remaining within the digester after gas production) is a brilliant compost and soil food as all the minerals from the waste stay within the digestate after the gas has been “extracted”.
Humans produce a breathtaking amount of organic waste in our day to day lives and it is beneficial to both the human race and the planet to use this for satisfying, at least, some of our energy consumption needs.

SunFire recently added the DIY Biobag Digester Kit to our product range. The Biobag is the simplest digester that can be installed, requires little skill, easy to operate and maintain and cost effective.  The application is typical for rural communities, schools with feeding schemes, old age homes as community based projects.

The Biobag Kit comes complete with the actual PVC digester, gas pipes and fittings, in-line gas pressure pump, desulfurizer, safety valve, moisture trap and complete installation and operation manual. The Biobags come in sizes from 10m3 to 50m3 – depending on the quantity of organic waste that is available.
We also stock a variety of biogas products such as biogas cookers, lights, hot water geysers and steaming pots. Please inquire about these if you have an interest.

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What is biogas?

“Biogas” is a naturally occuring mixture of 60 to 70% methane and 30 to 40% CO2 with some H2S (Hydrogen Sulfide), that burns similar to so-called “natural gas”, which is actually a fossil fuel. Once generated and stored, biogas is primarily used around the world for cooking and heating at the home scale, but it also has many other important applications both domestically and industrially. Its use as a fuel to power electric generators at all scales is well established and it also has a long history of use in gas lamps and absorption refrigeration systems. When purified and compressed we see it used as an effective fuel for cars, trucks and buses (Stockholm Sweden is a leader in this application). Thus biogas is a flexible substitute for non-renewable energy sources at many levels. Additionally, its production creates a high quality fertilizer and provides feedstock for the creation of petrochemical substitutes so biogas serves to replace fossil resources on many levels. A “biogas digester” is a simple system which produces biogas, via the natural anaerobic decomposition of organic material. The biogas digester, once its “starter culture” of methanogenic (CH4 producing) bacteria has been established (usually several weeks after initial loading with animal manures or lake mud) can be fed daily with kitchen and garden waste. The ecosystem of bacteria in the biogas digester extract energy from the organic material and generate methane gas. The digested organic material exits the system as a high-quality fertilizer in liquid form. This liquid anaerobic “compost” still contains all the minerals and other soil nutrients of the kitchen and garden waste, including the nitrogen that can be lost through aerobic composting.

Our solar range is available for delivery throughout  South Africa | Centurion | Midrand | Krugersdorp | Vanderbijlpark | Boksburg | Randburg | Roodepoort | Sandton | Germiston | Stellenbosch | Bloemfontein | Alberton | Kempton Park | Port Elizabeth | Benoni | East London | Pietermaritzburg | Soweto | Berea | Pretoria | Johannesburg | Durban | Cape Town | Mpumalanga |  | Namibia | Congo | Madagascar | Zimbabwe | Lesotho | Botswana | Malawi

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