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Biogas is a gaseous renewable energy source [1] produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste, wastewater, and food waste. Biogas is produced by anaerobic digestion with anaerobic organisms or methanogens inside an anaerobic digester, biodigester or a bioreactor.
Small-scale biogas plants are being utilized in many countries, including Ghana, [55] Vietnam [56] and many others. [57] Larger centralized systems are being planned that mix animal and human feces to produce biogas. [52] Biogas is also produced during sewage sludge treatment processes with anaerobic digestion.
This could decrease the amount of land used to farm food for human consumption and may decrease overall feedstock. [ 18 ] While there may be problems facing the economic viability of biogasoline, the partnership between Royal Dutch Shell and Virent Energy Systems, Inc., a bioscience firm based in Madison, WI, to further research biogasoline is ...
According to a 2010 meta-analysis, the evidence suggests that the practice leads to small reductions in lung function in children, and that children with allergies may be more susceptible. [27] Biogas digesters convert waste, such as human waste and animal dung, into a methane-rich gas that burns cleanly. Biogas systems are a promising ...
A bio-digester is a mechanized toilet that uses decomposition and sedimentation to turn human waste into a renewable fuel called biogas. Biogas can be made from substances like agricultural waste and sewage. [92] [93] The bio-digester uses a process called anaerobic digestion
Children up to five years of age spend 90% of their time at home. [44] Globally, 50% of pneumonia deaths among children under five years of age are due to particulate matter inhaled from indoor air pollution. [45] Many homes around the world used solid fuels for cooking.
One of its indicators is: "Proportion of population with primary reliance on clean fuels and technology" (Indicator 7.1.2). The indicator is calculated as the number of people using clean fuels and technologies for cooking, heating and lighting divided by total population reporting that any cooking, heating or lighting, expressed as percentage.
Bioenergy is a type of renewable energy that is derived from plants and animal waste. [1] The biomass that is used as input materials consists of recently living (but now dead) organisms, mainly plants. [2]