THE MORE WINE, THE MORE GAS? ESTIMATION OF THE BIOENERGY POTENTIAL OF WINERY WASTEWATER IN MOLDOVA: CONTRIBUTIONS TO SUSTAINABLE DEVELOPMENT

  • Charles Amarachi OGBU Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Czech Republic
  • Marek JELÍNEK Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Czech Republic
  • Tatiana ALEXIOU-IVANOVA Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Czech Republic
  • Iulia CORMAN Department of Management of Natural Resources, Faculty of Cadastre and Law, State Agrarian University of Moldova, Republic of Moldova

Abstract

Abstract. Wine is one of the most ancient commodities in the world. The critical residues from the wine industry are grape leaves, stems, grape pomace, grape seeds, yeast lees, tartrate, and wastewater. The indiscriminate disposal of produced wastewater has adverse environmental and health consequences. Nevertheless, winery effluent has substantial prospects as an energy source. Hence, this paper aims to briefly showcase the potential of energy generation from wastewater in the wine industry through anaerobic digestion. From literature and statistical records, in 2018, the cultivation of grapes in Moldova covered about 126,873 ha of land and produced 730,171 t of grapes, with over 24% pressed for wine production. Consequently, the industry released over 6 billion litres of wastewater. Therefore, by anaerobic digestion of this effluent, there is a potential for the wine industry to produce 459,166 MWh of electricity annually to satisfy nearly 287,000 people. This potential represents a very important step towards energy self-sufficiency of the wine industry and a contribution to the sustainable development goals concerning wastewater, energy and sanitation.


Key words: Biofuel; Biogas; Cleaner production; Sustainable development; Waste valorisation.


Реферат. Вино является одним из древнейших товаров потребления в мире. Важнейшими остаточными продуктами винодельческой промышленности являются виноградные листья, гребни виноградной грозди, виноградные выжимки, виноградные косточки, дрожжевой осадок, тартраты и сточные воды. Неизбирательная утилизация образующихся сточных вод приводит к неблагоприятным последствиям для окружающей среды и здоровья. Однако сточные воды виноделия имеют существенные перспективы в качестве источника энергии. Поэтому, данное исследование направлено на то, чтобы вкратце продемонстрировать потенциал производства энергии из сточных вод в винодельческой промышленности посредством процесса метанового брожения. Согласно данным из литературы и статистическим данным, в 2018 году выращивание винограда в Молдове занимало около 126 873 га земли и было собрано 730 171 тонн винограда, более 24% которого было использовано для производства вина. Следовательно, в результате деятельности винодельческой промышленности образовалось более 6 миллиардов литров сточных вод. Таким образом, при помощи метанового брожения сточных вод винодельческая промышленность может производить 459 166 МВт/ч электроэнергии ежегодно, чтобы удовлетворить потребности в энергии почти 287 000 человек. Это демонстрирует шаг к достижению энергетической самообеспеченности винодельческой промышленности и вклад в достижение целей устойчивого развития, направленных на проблемы сточных вод, энергии и санитарии.


Key words: Биотопливо; Биогаз; Чистое производство; Устойчивое развитие; Валоризация отходов.

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Published
2022-08-18
How to Cite
OGBU, Charles Amarachi et al. THE MORE WINE, THE MORE GAS? ESTIMATION OF THE BIOENERGY POTENTIAL OF WINERY WASTEWATER IN MOLDOVA: CONTRIBUTIONS TO SUSTAINABLE DEVELOPMENT. Stiinta agricola, [S.l.], n. 1, p. 85-91, aug. 2022. ISSN 2587-3202. Available at: <https://sa.uasm.md/index.php?journal=sa&page=article&op=view&path%5B%5D=780>. Date accessed: 24 sep. 2022.
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