Mirotin-Energo has realized project of biogas plant during the 2011 and 2012 with power of 1,0 MW (electrical). This plant is situated in Vrbas, Serbia. First idea came to Mirotin company, which has decided to invest in biogas plant of total capacity of 4 MW as a part agricultural company “Sava Kovacevic”, also member of Mirotin Group. “Sava Kovacevic” owns with 5000 hectares of soil, which is fully irrigated. As a part of this company, there is also cow form which has 2000 cows and daily milk production of 50.000 liters per day.

 

Biogas project has several phases, where first phase is with 1,0 MW (electrical). Since there are no experiences in Sebia in this expertise, Mirotin company formed “Mirotin-Energo” company with goal to put the biogas project in practice. “Mirotin-Energo” hired prominent experts of this subject: University of Szeged, which has analised available materials, manure and green organic residues produced by “Sava Kovacevic”, FHB Hungary from Budapest has made feasibility study. Based on this study decision was made to build the project of biogas plant. Technology supplier was Biogest from Vienna, Austria together with BOR-ING Kula, Serbia. The newest technology has been implemented through this technology. “Power-ring” fermenter has been implemented with two circles (diameter of 42m and 24m) which enables the energy savings up to 10% comparing to common solutions.

 

First phase consists of 1,0 MW electrical and 1,0 MW thermal power. Electrical energy is being sold to the grid under feed-in price, according to Serbian laws. Total annual electrical power production is about 8 million kWh. Heat power is planned to be used for heating and cooling the local hospital in Vrbas, for part of the town nearby plant ant for internal heating needs of “Sava Kovacevic” company. In this way, by using all available input materials, 27000 tons of manure (which represent ecological problem) and about 10000 t of the corn silage and another green mass, technological chain is completely connected in agricultural production. Apart from thermal and electrical energy, postfermented mass (total amount of 36000 t/a) can be used as very healthy and rich fertilizer for plant growth. This mass is being used through our irrigation system on our own fields. In this way, transport by tractors and a cistern is avoided. Automatic cleaning of the stalls is also implemented through this project, which enabled the transportation of the slurry directly to the fermenter by the pipes and pumps. (GEA ). All this has helped to prevent dangerous and hazardous evaporation of the cattle slurry in atmosphere and in the ground, which makes not only economical benefits, but ecological as well.

 

This closed technology process of the biogas plant makes advanced economical, technological and ecological transfer of the technology which makes solid base for education for future users and support to their ideas. Biogas plant (first phase) has been finished and successfully started in October, 2012.

 

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