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Biogas Plant Construction Manual Fixed-dome Digester

Family Type Biogas Plants

Table of Contents

1.  Introduction

2.  Determining Plant Size

3.  Selection of Construction Materials

3.1  Cement

3.2  Sand.

3.3  Gravel .

3.4  Water .

3.5  Bricks .

3.6  Cobble Stones .

4.  Construction Site Selection .

5.  Site Layout ..

6.  Excavation.

7.  Construction of Digester Main Chamber ..

8.  Dome Construction

9.  Outlet Chamber Construction

10.  Construction of Inlet Tank

11.  Lay-out of Pipeline

12.  Compost Pits

13.  Biogas Appliances


Bajgain, Sundar, Biogas Support Programme (September 1994) “Construction Manual for GGC 2047 Model Biogas Plant”.  P.O. Box No. 1966, Kathmandu, Nepal.

Bioenergy Systems Report: "Innovations in Biogas Systems and Technology" (1984).  Bio-energy Systems and Technology Project of the USAID.

Chengdu Biogas Research Institute (1989) “The Biogas Technology in China”, Chengdu, China.  Karki, A. B. and K. Dixit (1984) "Biogas Fieldbook".  Sahayogi Press, Kathmandu, Nepal.

Karki, A. B., K. M. Gautam and A. Karki (1994) "Biogas Installation from Elephant Dung at Machan Wildlife Resort, Chitwan, Nepal". Biogas Newsletter, Issue No. 45.

Lagrange, B. (1979) "Biomethane 2: Principles - Techniques Utilization".  EDISUD, La Calade, 13100 Aix-en-Provence, France.

Lund, M. S., S. S. Andersen and M. Torry-Smith (1996) "Building of a Flexibility Bag Biogas Digester in Tanzania". Student Report. Technical University of Denmark, Copenhagen.

Office of the Leading Group for the Propagation of Marshgas, Sichuan (Szechuan) Province, Peoples Republic of China, Edited: Van Buran, Ariane, “A Chinese Biogas Manual”

http://www.fastonline.org/CD3WD_40/JF/432/24-572.pdf Sustainable Development Department (SD), Food and Agriculture Organization of the United

Nations (June 1997), A System Approach to Biogas Technology.  Internet: http://www.fao.org/sd/egdirect/EGre0022.htm
Volunteers in Technical Assistance (1980).  “3-Cubic Meter Biogas Plant, A Construction Manual”.  Arlington, Virginia, USA


Table 2.1    Plant size and average daily feedstock.

Table 2.2   Dimensions for the Various Plant Sizes from the Design in Figure 2.1

Table 3.1    Biogas Plant Construction Materials


Figure 2.1  Gobar Biogas Plant Design

Figure 11.1  Schematic for Condensate Drain Valve in Gas Line.

Figure 14.1  AREA Biogas Model Design

 (Note: Biogas Plant Construction Manual  was published in https://ronna-afghan.harmonieweb.org)