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Download: $1.48 he 15 page e-book describes the basics around methane or by a gas production and moves on to more detailed descriptions batch digesters for large reduction schemes. The book starts by describing the basic properties of methane or biogas. This gas can be made using simple apparatus and a process know as anaerobic digestion. Anaerobic digestion is one of the most common biological procedures in nature, as the name implies, it means to carry or breakdown in the absence of air. Once you know the principles of this process it is possible to make biogas in small or large quantities from a variety of waste materials. The e-book describes making an anaerobic digester using an oil drum and a rubber inner tube as the gas storage vessel aswell as a larger continuous digester. The e-book also contains diagrams list of materials and websites are further reading.
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