Publicationes

This study reports the results of a technical review of existing biogas plants in facilitating the preparation of an implementation plan for the proposed National Domestic Biogas Programme (NDBP) in Pakistan.

Study findings indicated that only 40% of the households produced the required quantity of feeding materials, 63.3% of the plants received less than 40% of prescribed quantity, and 86.67% of plants were under-fed. Operation and Maintenance (O&M) lack of training and after-sales services were also seen as major difficulties. The general study outcome showed that the physical condition of 18% of the plants was good, of 61% fair and of 21% poor.

Despite the overall study outcome that existing biogas plants were functioning at a satisfactory level, further improvements were needed and highly desired, which is why four potential biogas plants models have been evaluated to select the best one for Pakistan. The World Gas Company (GCC) model has been rated as the most suitable one, with some of its advantages over the other models being higher resistance
of gas holder against ground tremors, easy access for cleaning and maintenance of digester and gas holder, proven record of successful functioning in different countries, higher level of user satisfaction, etc.

Based on the study findings recommendations as to the implementation of NDBP were presented and are available in the report (e.g. urgent need for the modification of the existing design of floating drum model biogas plants, utmost need for quality standards formulation on construction, operation and maintenance of biogas plants).