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Glasnik Zaštite Bilja, Vol. 46. No. 3., 2023.

Professional paper

https://doi.org/10.31727/gzb.46.3.9

Positive socio-economic and ecological effects of biogas production by anaerobic digestion

Vlatka Petravić Tominac ; Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Zagreb, Hrvatska
Mario Novak ; Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Zagreb, Hrvatska
Antonija Trontel ; Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Zagreb, Hrvatska
Mladen Pavlečić ; Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Zagreb, Hrvatska
Nenad Marđetko ; Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Zagreb, Hrvatska
Marina Grubišić ; Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Zagreb, Hrvatska
Blanka Didak Ljubas ; Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Zagreb, Hrvatska
Karla Miličević ; Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Zagreb, Hrvatska
Božidar Šantek ; Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Zagreb, Hrvatska

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Abstract

The main product of anaerobic digestion is biogas, which is a renewable fuel, and the by-product of this process is digestate, which is used as a nutrient-rich fertilizer. Additional positive effects of anaerobic digestion are the decomposition of organic waste and the reduction of unpleasant odors and the concentration of pathogenic microorganisms. Biogas is mainly used for the production of electricity and heat, and in some cases it is purified to obtain biomethane which is used in the natural gas network, as a fuel for internal combustion engines or as a starting chemical for the chemical industry. Due to all of the above, the development of biogas production has positive socio-economic and ecological effects. Biogas produced in Croatia is mostly used for the production of electricity and thermal energy at cogeneration plants. Although various renewable raw materials are available in Croatia that could be used for biogas production, their potential has been underutilized until now. Manure and by-products of agriculture, slaughterhouses and the food industry are mainly used as raw materials for the production of biogas in our country. More rational use of land and development of the food industry could increase the amount of agricultural residues and by-products resulting from food processing. Directing and encouraging the use of these by-products for biogas production can stimulate a faster development of biogas production in our Croatia. In addition to the possible increase in own production of electricity and fuel, it is an environmentally friendly technology that has a positive socio-economic effect.

Keywords

anaerobic digestion; anaerobic digester; biogas; renewable energy sources

Hrčak ID:

300532

URI

https://hrcak.srce.hr/300532

Publication date:

21.4.2023.

Article data in other languages: croatian

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License (open-access, http://creativecommons.org/licenses/by/2.5/):

Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

License (open-access):

Ovo je članak s otvorenim pristupom distribuiran pod uvjetima licence Creative Commons Attribution, koji dopušta neograničenu upotrebu, distribuciju i reprodukciju u bilo kojem mediju, pod uvjetom da se izvorno djelo pravilno citira.

License (open-access):

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Date received: 23 March 2023

Date accepted: 3 April 2023

Publication date: 21 April 2023

Volume: 46

Issue: 3

Pages: 80-92

DOI: 10.31727/gzb.46.3.9

Article Information (continued)

Categories:

Subject: Stručni rad

Categories:

Subject: Case-report

Keywords:

Keyword: anaerobna digestija

Keyword: anaerobni digestor

Keyword: bioplin

Keyword: obnovljivi izvori energije

Keywords:

Keyword: anaerobic digestion

Keyword: anaerobic digester

Keyword: biogas

Keyword: renewable energy sources

Pozitivni društveno-ekonomski i ekološki učinci proizvodnje bioplina anerobnom digestijom

Translated Title (en): Positive socio-economic and ecological effects of biogas production by anaerobic digestion

Vlatka Petravić Tominac[1]

Mario Novak[1]

Email: mnovak@pbf.hr

Antonija Trontel[1]

Mladen Pavlečić[1]

Nenad Marđetko[1]

Marina Grubišić[1]

Blanka Didak Ljubas[1]

Karla Miličević[1]

Božidar Šantek[1]

 

[1] Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Zagreb, Hrvatska

Abstract

Glavni proizvod anaerobne digestije je bioplin, koji je obnovljivo gorivo, a sporedni proizvod ovog procesa je digestat, koji se koristi kao gnojivo bogato hranjivim tvarima. Dodatni pozitivni učinci anaerobne digestije su razgradnja organskog otpada te smanjenje neugodnih mirisa i koncentracije patogenih mikroorganizama. Bioplin se uglavnom koristi za proizvodnju električne energije i topline, a u nekim slučajevima se pročišćava da bi se dobio biometan koji se koristi u mreži prirodnog plina, kao gorivo za motore s unutarnjim sagorijevanjem ili kao polazna kemikalija za kemijsku industriju. Zbog svega navedenog, razvoj proizvodnje bioplina ima pozitivne društveno-ekonomske i ekološke učinke. Bioplin proizveden u Hrvatskoj većinom se koristi za proizvodnju električne i toplinske energije u kogeneracijskim postrojenjima. Iako su u Hrvatskoj dostupne različite obnovljive sirovine koje bi se mogle iskoristiti za proizvodnju bioplina, njihov je potencijal do sada bio nedovoljno iskorišten. Kao sirovine za proizvodnju bioplina u nas se pretežno koriste gnojovka i nusproizvodi poljoprivrede, klaonica i prehrambene industrije. Racionalnijim korištenjem zemljišta i razvojem prehrambene industrije mogla bi se povećati količina poljoprivrednih ostataka i nusproizvoda koji nastaju preradom hrane. Usmjeravanjem i poticanjem korištenja ovih nusproizvoda za anaerobnu digestiju može se stimulirati brži razvoj proizvodnje bioplina u Hrvatskoj. Pored mogućeg povećanja vlastite proizvodnje električne energije i goriva, radi se o ekološki povoljnoj tehnologiji koja ima pozitivan društveno-ekonomski učinak.

Translated Abstract

The main product of anaerobic digestion is biogas, which is a renewable fuel, and the by-product of this process is digestate, which is used as a nutrient-rich fertilizer. Additional positive effects of anaerobic digestion are the decomposition of organic waste and the reduction of unpleasant odors and the concentration of pathogenic microorganisms. Biogas is mainly used for the production of electricity and heat, and in some cases it is purified to obtain biomethane which is used in the natural gas network, as a fuel for internal combustion engines or as a starting chemical for the chemical industry. Due to all of the above, the development of biogas production has positive socio-economic and ecological effects. Biogas produced in Croatia is mostly used for the production of electricity and thermal energy at cogeneration plants. Although various renewable raw materials are available in Croatia that could be used for biogas production, their potential has been underutilized until now. Manure and by-products of agriculture, slaughterhouses and the food industry are mainly used as raw materials for the production of biogas in our country. More rational use of land and development of the food industry could increase the amount of agricultural residues and by-products resulting from food processing. Directing and encouraging the use of these by-products for biogas production can stimulate a faster development of biogas production in our Croatia. In addition to the possible increase in own production of electricity and fuel, it is an environmentally friendly technology that has a positive socio-economic effect.

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