GK
ECOLOGY BIODIVERSITY CONSERVATION ENVIRONMENTAL ISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Pelletisation
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Biomethanation
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Pyrolysis
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Composting
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Detailed explanation-1: -Cycling or recycling is the reuse of waste materials. Based on the nature of garbage, it is disposed of in different ways such as composting, dumping in landfills etc. Hence cycling is not a method of disposal of garbage.
Detailed explanation-2: -Explanation: Bangalore method is a method of composting whereas the area, depression and trench methods are the landfilling method.
Detailed explanation-3: -Composting can be carried out in two ways i.e., aerobically and anaerobically. During aerobic composting aerobic micro-organisms oxidise organic compounds to Carbon di oxide, Nitrite and Nitrate. Carbon from organic compounds is used as a source of energy while nitrogen is recycled.
Detailed explanation-4: -Basic Techniques of Energy Recovery from Waste. Anaerobic Digestion/Biomethanation. Combustion/Incineration. Pyrolysis/Gasification. Landfill Gas recovery. Analysis of Key Aspects of Waste to Energy Technologies. India Waste to Energy.