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nature : recycling middle finger through chemical, biochemical processing methods as the re-use of products. Divided into : (a) Conversion (chemical conversion), including pyrolysis, hydrogenation, hydrolysis, oxidation. For example, organic waste can be derived through pyrolysis gas and containing carbon, tar, bitumen, oil, organic acids, alcohols, such as a product can be used as fuel directly, or after the separation chemicals used. Cellulose waste (paper, vegetables and other plants) can be derived through hydrolysis of glucose, can then fermented into ethanol, citric acid, etc.. Organic waste through hydrogenation and the oil obtained. The organic garbage waste after hydrogenation and the oil obtained. Waste organic waste can be derived through oxidation of carbon monoxide, carbon dioxide, organic acids, aldehydes. (2) biochemical conversion (biochemical conversion). Including anaerobic fermentation and aerobic fermentation. For example, organic waste can be derived through aerobic fermentation similar humus fertilizer (often described as composting compost). Organic waste can also read anaerobic fermentation (or methane fermentation methane fermentation) from methane, carbon dioxide, hydrogen sulfide and other gases and solid waste, methane (or gas) can be used as fuel, solid waste can be used as fertilizer.
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