Anaerobic Digestion (AD): the potential for horticulture

The principal obstacle to using waste heat for greenhouses is that the heat is required in winter and the green manures cut in summer, but this is easily overcome by ensiling.  The greatest challenge may be the efficiency of the heating systems, not the digester.  The gas could also be captured for flame weeding.  AD's great virtue is that it enables energy to be extracted from organic matter without destroying that organic matter.  A renewable energy source captured in a renewable way, no doubt has an important place in future production.

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