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Agricultural biogas plant in Uniechówek, with electric power of 1063 kWe and thermal power of 1081 kWt, opened 18 April 2011
Location:
- Town/village: Uniechówek
- District: Debrzno
- County: Człuchów
- Province: Pomorskie
Project description:
The agricultural biogas plant in Uniechówek produces biogas and generates electricity and heat in the process of its combustion in a cogeneration unit. The input material is composed of liquid pig manure mixed with supplementary components: corn silage, glycerine and products and semi-products of crop and feed production. The type and quantity of substrates used are monitored daily, so as to obtain the highest efficiency of the system and equal distribution during fermentation. The biogas is produced in a process of mesophilic digestion (fermentation) at a temperature of 37°C, in anaerobic conditions. Biogas produced in the fermentation process is combusted in a cogeneration unit generating electricity and heat. The resultant electric power is partly consumed by the plant (5–10%) and adjoining pig farm (10–15%), and the remainder (75–85 %) is sold to a power company. Heat obtained from engine cooling is used for technological processes of the plant and will be supplied to the farm and possibly external customers.
The Uniechówek biogas plant is composed of the following facilities: component storage area
- pre-storage tank with capacity 1,464 m3
- component storage tank with capacity 962 m3
- fermenter no. 1 with capacity 3,990 m3
- fermenter no. 2 with capacity 3,884 m3
- post-fermentation tank with capacity 2,490 m3
- service building
- pumping station
- biogas purification system
- cooler
- transformer station
- power generator with a capacity of 1,063 kWe and 1,081 kWt
- heat furnace with a power of 1,200 kW
Apart from the main facilities, additional elements of the site include wells and auxiliary tanks, access roads, transmission systems and grids, and connections.
The existing two-chamber liquid manure tank is used for storage of organic manure from the biogas plant.
Annual input material to the Uniechówek plant:
- liquid manure feedstock: approx. 36,500 tonnes per year
- corn silage feedstock: approx. 17,520 tonnes per year
Annual output of the Uniechówek plant:
- biogas: approx. 4,029,178 m3
- electricity: approx. 8,380,692 kWh
- heat: approx. 8,696,052 kWh
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