In:
BIO Web of Conferences, EDP Sciences, Vol. 56 ( 2023), p. 01017-
Abstract:
In the French and European Mediterranean regions, drip irrigation of vines is one of the first adaptations made by wine growers to the consequences of climate change (increasingly frequent drought situations). Water has an undeniable value and in this context, numerous public aids have financed several initiatives to study the technical, environmental and economic relevance of this solution. The reuse of treated wastewater (TWW), as an alternative source of water and fertilizer, allows both access to a source of controlled quality and the reduction of conflicts of use by applying the principle of circular economy. Nutrients in municipal treated wastewater (N, P, K mainly) are a particular advantage in this source over conventional irrigation water sources, so supplemental fertilizers would sometimes not be required. However, additional environmental and health requirements are taken into account for this source of irrigation water. In cases where the dissolved salt content of the treated water does not allow for its direct use, a salinity refining membrane treatment is required just prior to the disinfection treatment. It can be by electrodialysis reversal (EDR), nanofiltration (NF) or reverse osmosis (RO). The disinfection step is indeed necessary, whatever the desalination process, to remove or inactivate the pathogenic micro-organisms still present in the treated water and to guarantee its quality up to the point of use. Thus, foreseeing risks linked to the development of biofilms in the water distribution system and the micro-irrigation systems. Vineyard irrigation with TWW reuse has been applied for decades in important wine-producing countries such as Australia, the United States or Spain. In France, its use is very recent but the demand is growing thanks, in part, to the encouraging results of pioneering projects. The technical feasibility and issues related to economic dimensions, social acceptability and environmental impacts are presented from examples of projects that have been studied or are being set up in the south of France (Occitanie region).
Type of Medium:
Online Resource
ISSN:
2117-4458
DOI:
10.1051/bioconf/20235601017
Language:
Spanish
Publisher:
EDP Sciences
Publication Date:
2023
detail.hit.zdb_id:
2673408-4
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