Question

How much quantity of biogas is produced by 1 ton of biomass?

Answer 1

Answer:

Explanation:

One tonne of TS can produce 200 ccm of biogas, so 1 kg of TS will produce 0.2 m3 of Biogas.

One Kg of dung contains about 20% TS.

Now, 1 kg of dung which contains 20% TS will produce, 0.2*0.2 = o.04 m3 of biogas.

1 kg dung will produce 0.04 m3 of biogas.

Hence, 1/0.04 = 25 kgs is required to produce 1 m3 of Biogas.

Density = mass/ volume.

density of biogas is 1.15 kg/m3

mass ( required here is 1 kg )

volume required to make 1 kg biogas = mass ( 1 kg )/ density (1.15 kg/m3) = 0.86 m3.

therefore to produce 1 kg of biogas we need 0.86*25 = 21.7 approx 22 kgs of dung.

Please note the above calculation has been conducted without the addition of water. Generally a 1:1 ratio of feedstock is to water is taken. This will alter the calculations significantly.