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close this bookCriteria for the Dissemination of Biogas Plants for Agricultural Farm and Household Systems (GTZ, 1993, 25 p.)
close this folder7. Data collection
View the document(introduction...)
View the document7.1. Daily gas demand of a farm household or farm
View the document7.2. Expected gas production
View the document7.3. Economic efficiency

7.2. Expected gas production

If the daily amount of available dung (fresh weight) is known, gas production will approximately correspond to the following values:

1 kg cattle dung

0.04 m³ biogas

1 kg buffalo dung

0.03 m³ biogas

1 kg pig dung

0.06 m³ biogas

1 kg chicken droppings

0.07 m³ biogas

If the live weight of all animals whose dung is put into the biogas plant is known, the daily gas production will correspond to the following values:

cattle, buffalo and chickens

0.0015 m³ biogas/day per 1 kg live weight


0.003 m³ biogas/day per 1 kg live weight.

Where cattle are only partly stabled the gas quantity is reduced in the relation: number of hours to 24-hour day.