The biogas production technology (Fig. 1) from animal husbandry wastes is a potential solution to the current energy crisis worldwide, particularly in the rural areas. This technology aims to generate recycled energy, prevent environmental pollution, minimize the depletion of forest resources, and create organic fertilizer for agricultural activities.
The biodigester is a rectangular structure with a volume capacity of over 5 m3 suited to an animal husbandry of five to six pig heads. It could be placed next to or below the animal shed.
Biogas Waste Box
The biogas waste box is constructed next to the bio-digester. Rice straw is deposited into this box to become organic fertilizer.
Biogas Reservoir System
This biogas reservoir system (Fig. 5) collects and stores gas from the biodigester for cooking. The system normally has two to three plastic bags with 17-20 mc. Each plastic bag has a capacity of 1.5-2 m3. The collected gas is then used as fuel for the kitchen stove (Fig. 6).
Index of Images
Figure 1 General Diagram of the Vacvina Biogas
Figure 2 Ditch Where the Input to the Biodigester Comes through
Figure 3 Biodigester
Figure 4 PVC Pipe As Output System of the Biodigester
Figure 5 Biogas Reservoir System
Figure 6 Collected Gas Used As Fuel for the Kitchen Stove
VACVINA, Center for Community Research
and Development (CCRD)
15 Thanh Cong – Ba Dinh – Hanoi – Vietnam
Tel: (84 4) 8350489
Fax: (84 4) 8311768
E-mail: email@example.com, 2004-08-01
Source and Photos: Food & Fertilizer Technology Center – agnet.org
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