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Challenges for modern wine production in dry areas: dedicated indicators to preview wastewater flows
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Autores
Orientador(es)
Resumo(s)
Wine production is an important socio-economic activity in Mediterranean countries. This study is
focused on wine production under warm and dry climate conditions in south Portugal, in two
major wine-producing regions (Tejo and Alentejo), characterized by small to medium sized
wineries. Vineyards have been expanding in this region of Portugal, where about 50–70% of the
vineyards are irrigated, increasing regional water demand. The aim of this study is to propose an
integrative approach for wine production, where a simple calculation model has been developed
and validated to preview water consumption and wastewater production, as functions of
winemaking periods and type of processed grapes. Results revealed a global ratio of 2.2 ±0.45
and 2.1 ±0.17 Lwater/Lwine. Concerning dedicated indicators, 60–75% of the wastewater was
produced during Period I and the red wine production represented a 50–64% increase in water
consumption. This tool will enable winemakers to calculate Global and Dedicated Indicators,
based on their own parameters, which provide information on flow volumes and peak flows.
In this context, it will be possible to identify improvements for wastewater treatment and
management towards water reuse as a promising solution for the wine sector in the framework
of the circular economy
Descrição
Palavras-chave
Alentejo region sustainable wine production water management water metrics water scarcity
Contexto Educativo
Citação
Water Science and Technology: Water Supply, 19 (2), p. 653-661
Editora
IWA Publishing