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<p><b>Biogas</b> is a renewable gaseous fuel generated from organic materials including agricultural residues, manure, municipal waste, plant matter, sewage, wastewater, green waste, and food waste. Biogas is produced industrially via <a href="page.php?w=anaerobic_digestion">anaerobic digestion</a> with <a href="page.php?w=Anaerobic_organism">anaerobic organisms</a> or <a href="page.php?w=Methanogen">methanogens</a> inside an anaerobic digester or other type of <a href="page.php?w=bioreactor">bioreactor</a>. The gas composition is primarily methane</p><p>
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