(a) What is biogas? Name the major component of biogas.
(b) What are the raw materials used for making biogas?
(c) Describe the construction and working of a biogas plant with the help of a labelled diagram.
(d) Write any two uses of biogas.
(e) Write any two advantages of using biogas.
Answers
Explanation:
A) Biogas...... The chemistry is right
Like fossil natural gas, the essential component of biogas, which is responsible for the energy
B) it contains, is methane (CH4), a flammable gas. ... Other components of biogas are water (H2O), oxygen (O2) and traces of sulphur (S2) and hydrogen sulphide (H2S).
D) raw material is cow dung and household waste
E) it is used in farming to increase the fertility of land ...
F) it is cheap and affordable and easily found every where is the advantage...
Answer:
(a)Biogas is the mixture of gases produced by the breakdown of organic matter in the absence of oxygen, usually consisting of certain quantities of methane and other constituents.
Biogas comprises primarily methane (CH4) and carbon dioxide (CO2) and may have small amounts of hydrogen sulphide (H2S), moisture and siloxanes.
(b)Biogas is produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste or food waste.
(d)●The gases methane, hydrogen, and carbon monoxide (CO) can be combusted or oxidized with oxygen. This energy release allows biogas to be used as a fuel;
●it can be used for any heating purpose, such as cooking.
●It can also be used in a gas engine to convert the energy in the gas into electricity and heat.
(e)Advantages of Biogas
It's a Clean & Renewable Energy Source. ...
It Reduces Soil & Water Pollution. ...
Prevents Health Problems & Biodiversity Loss. ...
Generates Organic Fertilizer. ...
It's A Simple and Low-Cost Technology That Encourages A Circular Economy. ...
Healthy Cooking Alternative For Developing Areas.