 |  | Biogas Plants (GTZ, 1988, 85 p.) | ||
 |  | (introduction...) | ||
| | Acknowledgements | ||
| | Preface | ||
| | 0. Biogas as appropriate technology | ||
| | 1. Benefits and costs of a biogas plant | ||
|  | 2. The dgestion process | ||
| | 3. Biogas plants | ||
| | 4. Scaling of biogas plants | ||
| | 5. Design of biogas plants | ||
| | 6. Biogas utilization | ||
| | 7. Planning, design and construction | ||
| | 8. Appendix | ||
| | Bibliography | ||
