Different raw materials will produce different amounts of biogas and methane depending on their
content of carbohydrates, fats and proteins (Table 1; Buswell & Neave, 1930). In theory, all
biodegradable materials with reasonable lignin content (i.e. not wood) are suitable raw materials
for biogas processes. In agriculture, manure and most plant biomass can be directed to biogas
plants, while from municipalities, food waste and sewage sludge are the most important material
flows to biogas processes. Moreover, different industries produce biodegradable by-products
which can be used in biogas plants.
Different raw materials will produce different amounts of biogas and methane depending on theircontent of carbohydrates, fats and proteins (Table 1; Buswell & Neave, 1930). In theory, allbiodegradable materials with reasonable lignin content (i.e. not wood) are suitable raw materialsfor biogas processes. In agriculture, manure and most plant biomass can be directed to biogasplants, while from municipalities, food waste and sewage sludge are the most important materialflows to biogas processes. Moreover, different industries produce biodegradable by-productswhich can be used in biogas plants.
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