Question

In the gobar gas, the maximum amount is of
A. Methane
B. Propane
C. Carbon dioxide
D. Butane

Answer 1

Hint: Breakdown of the organic matter in the absence of oxygen also known as biogas and composition depend upon the technology used to produce the composition of methane, carbon dioxide and trace of nitrogen and water vapor.

Complete answer:
Organic waste digestion carried out by these microorganisms and produced the methane biogas naturally. Jan Baptista Van Helmont discovered the biogas from the decaying organic matter. And the first use in the biogas as in the water heater. The 10 kg dung per day cattle yield used to obtain average 40lit/ kg gas production. Bio gas is environmentally friendly.
Biogas generated due to the process digestion of sewage sludge contains different combinations of the gases like methane 60-70%, carbon dioxide 30-40% and other gases like hydrogen, nitrogen, hydrogen sulfide and water vapour present in it. The main source of the methane gas is at the energy level of municipal wastewater treatment plants. Treatment plants used gas engines, produced electricity and thermal power with the help of recovered methane. The total operational cost 80% of the electricity for a treatment plant.
The modified method as a commercial point of view in the biogas is digestion using a plug flow reactor in the Columns advanced Bio solids Flow through Thermophilic Treatment (CBFT3).

Therefore the correct option is (A).

Note: Modified method generate substantial level that’s help to increase in sludge mineralization biogas generation can be achieved by employing thermal, chemical and physical pretreatment step such as ozonation, enzymatic treatment, microwave heating and high performance pulse technique in the year 2011.