The purpose of this study was to evaluate feasibility study on the development of biogas in dairy farming. In short of the production process, the biogas was produced by utilizing waste from dairy farming industry (i.e. cow’s manure and cassava peel). The production of biogas was analyzed from engineering perspective with several economic evaluation parameters, including gross profit margin, in...

The EU is planning to increase the significance of renewable energy sources. In this context it is important to understand the decision making behavior of farmers regarding investments in renewable energy systems which generate energy from biomass. Therefore, we have confronted farmers with a hypothetical opportunity to invest in a biogas plant. It turned out that besides risk aversion the inve...

Nowadays the water treatment plants are assembled with anaerobic digesters for biogas production where the sewage sludge is digested and in turn the energy recovered is used for electricity generation and heat production. Ultimately the sludge volume reduces, which is the major aid to treatment plants and additionally the digestate residue can be reused as a soil conditioner to enhance plant gr...

Soil application of biogas residues (BGRs) is important for closing nutrient cycles. This study examined the efficiency and impact on yields and yield formation of solid-liquid separated residues from biodegradable municipal and industrial wastes (bio-waste) in comparison to complete BGRs, nitrification inhibitor, agricultural BGRs, mineral fertilizer and unfertilized plots as control. The expe...

Biogas plants may support the transformation towards renewable-based and integrated energy systems by providing dispatchable co-generation as well opportunities for biogas upgrading or power-to-X conversion. In this paper, a simulation model that comprises main dynamics of internal processes plant is developed. Based on first-order kinetics anaerobic digestion process, production an input feedi...

Based upon the thermodynamic simulation of a biogas-SOFC integrated process and costing its elements, present work examines economic feasibility biogas-SOFCs for combined heat power (CHP) generation, by comparison their performance against conventional biogas-CHP with internal combustion engines (ICEs), under same assumptions. As well as issues scale an SOFC’s cost, examined in literature, stud...

Most organic matter can be used for bioenergy generation via anaerobic fermentation. Today, crop plants like maize play the dominant role as substrates for renewable biogas production. In this work we investigated the suitability of six dominant microalgae species (freshwater and saltwater algae and cyanobacteria) as alternative substrates for biogas production. We could demonstrate that the bi...

Several factors can influence the process of biogas production. The type of reactor is one of the key factors that influence biogas production. Therefore, the aim of this study was to construct a portable horizontal polyethylene-based biogas reactor. In addition, the performance of the developed biogas reactor was tested through digestion of cow manure. The experiments were carried out in Mashh...

Background & Aims of the Study: Studying the phasic process of the biogas yieldis required to optimize the design and operations; it also helps to lower energy production costs by decreasing the capital investment and operational costs. Here we determine the biogas process by measuring pH, ORP, electrical power and make compatibility to the biogas production trend. Materi...

In this study, the kinetic of biogas production was studied by performing a series laboratory experiment using rumen fluid of animal ruminant as inoculums. Cattle manure as substrate was inoculated by rumen fluid to the anaerobic biodigester. Laboratory experiments using 400 ml biodigester were performed in batch operation mode. Given 100 grams of fresh cattle manure was fed to each biodigester...