BIOINTEGRA d.o.o.

 

Biointegra d.o.o. – Slatina 2.4 MW

  • Selected Technology: agriKomp
  • Contractors: agriKomp Bohemia s.r.o. and Hidroregulacija d.d.
  • Investment Value: 7,658,319.00 EUR
  • Startup: in operation

 

The 2.4 MW biogas plant for power generation is located in the business area of Medinci, the town of Slatina in Virovitica-Podravina County. In the rural area of Slatina, the construction of a biogas plant is an essential part in the agricultural process, because it is possible to obtain heat and electricity and provide excellent fertilizer (co-substrate). In June 2015 started the construction of the biogas plant for the production of electricity. A successful trial run lasted for one month in August 2016, and the full-time operation started in November of that year.

                                                             Figure 1: Biogas plant 2.4 MW in Slatina

 

The biogas plant will be continuously filled and will work in the medium or the mesophilic temperature range, in an anaerobic environment, hence the environment without the presence of oxygen. The energy value of the biogas thus obtained is 5.2 to 6.5 kWh / m3 of biogas. In the production or cogeneration process 83.8% of usable energy is produced, while the remaining losses are in the conversion. Approximately 42.1% of electricity and 41.7% of thermal energy are produced.

 The produced electricity is delivered to the grid, while the heat produced will be used for the processing of biogas raw material (Figure 2).

Figure 2: Proposed Biogas Plant Scheme

 

Input material (biomass)

 

Biogas production materials are divided into two main groups:

  • Substrates:
  •        Fertilizers: beef and pig manure and manure, poultry manure;
  •        Plant biomass: corn, wheat, wheat and grass silage, fresh grass clippings, stem remains, products;
  • Co-substrates or waste from the food processing industry:
  •         Animal by-products including food, fat, fruit and vegetable residues, compost, industrial waste water rich in proteins and carbohydrates, fat-removing substances.

 

For the production of electricity from biogas it is necessary to provide sufficient amounts of biological waste. Another important material in biogas production is manure (liquid cow manure) which will be delivered by cattle farmers and farmers from the region. A purchase agreement for a period of 15 to 20 years has already been signed with the farmers. The manure is a problem for livestock farmers because of the legally prescribed method of disposal (in accordance with the Nitrates Directive of the European Union) so the farmers will transport it to the biogas plant. In the process of biogas production through anaerobic digestion, apart from the raw materialthe substrates are alsoused. Different types of biomass can be used for the substrate in the biogas production. Due to the favorable characteristics and proximity of the supplier, silage is used as a substrate for biogas production in the biogas plant.

A 14-year contract with the Croatian Energy Regulatory Agency (HROTE) has been signed for the purchase of electricity by a preferential feed-in tariff, which is corrected annually by inflation and rising energy prices.

Contact

Address:  Biointegra d.o.o.

                         A. Mihanovića 23, Medinci

                      33520 Slatina

Phone: +385 33 618 050