genia bioenergy
Industrial Biogas for self-supply
The plant produces biogas at a rate of 7,000 m3/hour and generates enough heat to cover 75% of the factory’s thermal demand with self-supply.
genia bioenergy
The plant produces biogas at a rate of 7,000 m3/hour and generates enough heat to cover 75% of the factory’s thermal demand with self-supply.
This plant is located in the Poltava Region in Ukraine. The regional economy is based on agriculture, primarily on cultivation of sugar beet. The biogas plant has been integrated into ASTARTA HOLDING’s sugar production plant.
In this type of system, Astarga acquired an improvement that matched the Group’s policy perfectly: a sugar production and refining system fully-integrated from cultivation to point of sale.
The feed system developed enables an intake of more than 45 tonnes of beet pulp per hour. Furthermore, the biological process is designed to assimilate a mono-substrate diet with an organic loading rate (OLR) of up to 12. Consequently, it operates without any other type of residue, which means that the plant is even more sustainable and efficient.
The plant layout includes four digesters and two post-digesters with a total volume of 31,500 m3.
Biogas production reaches 7,000 m3/hour and it is used to supply up to 75% of the sugar factory’s thermal demand.
The exhausted beet pulp is converted into a post-digestion by-product known as digestate. After solid-liquid separation, this material is transported to agricultural fields and used as organic fertilizer, thus closing the valorisation circle.
The plant is capable of processing all the residues generated by the factory and could even handle up to 60 tonnes per hour.
Such a biogas plant, associated with a factory that generates a large volume of organic waste with on-site waste treatment enables significant operational and logistical savings in energy and waste management. Consequently, it ensures that its industrial process is sustainable and eco-friendly.
We have also observed that larger plants have a shorter return on investment period.
Technical aspects:
Thermal power: 39 MW (8,000 hours/year)
Demand met: 75% of the energy required by the industrial process
Dimensions:
4 x 6,200-m3 digesters
2 x 3,100 m3 post-digesters
Key innovations:
Organic load ratio: OLR>> 8
Mono-substrate, working exclusively with exhausted beet pulp.
Inputs
Substrate: Beet pulp
Feed system: 1,000 tonnes/day, continuous
Outputs
Energy produced: 313.6 GWth/year
Methane production: 56 million m3/year
Digestate used on own fields, reducing fertilization costs.
Financing:
Investment: 16 million euros
Ratio (€/kW): 510,000 €/MWth
Payback: 1.85 years
