Biogas is the mixture of gases produced by the breakdown of organic matter in the absence of oxygen anaerobically , primarily consisting of methane and carbon dioxide. Biogas can be produced from raw materials such as agricultural waste , manure , municipal waste , plant material , sewage , green waste or food waste. Biogas is a renewable energy source. Biogas is produced by anaerobic digestion with methanogen or anaerobic organisms , which digest material inside a closed system, or fermentation of biodegradable materials. Biogas is primarily methane CH 4 and carbon dioxide CO 2 and may have small amounts of hydrogen sulfide H 2 S , moisture and siloxanes. The gases methane , hydrogen , and carbon monoxide CO can be combusted or oxidized with oxygen.
Speech On Food Waste
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Last Updated: February 2, References. This article was co-authored by Jacob Pischer. With over four years of experience, Jacob specializes in a variety of handyman services including pressure washing, cleaning gutters, repairing drywall, fixing leaky plumbing fixtures, and repairing broken doors. Jacob studied at Madison Area Technical College and has a background in real estate investment.
The process can occur aerobically with the aid of oxygen or an aerobically without oxygen. Substances break down much faster under aerobic conditions, as oxygen helps break the molecules apart, a process called oxidation. Most landfills are fundamentally anaerobic because they are compacted so tightly, and thus do not let much air in. As such, any biodegradation that does take place does so very slowly.
Introduction A. Attention Getter: Over half of the waste that ends up in the landfill does not belong there because it could have been recycled or reused. Credibility Statement: Not only do I religiously practice reducing, reusing, and recycling, but I have done a great deal of research for this speech, also research. To put effort into recycling, many feel they need to know what happens to their trash, otherwise recycling is meaningless.