Abstract For >50 years the Canary Islands have been using seawater desalinization facilities in order to satisfy the freshwater demand of their main economic activity –tourism, which continues to contribute to the economic and social progress of the archipelago. However, this desalinization process involves the production of a “waste” product known as rejected brine, which is discharged from coastal regions and islands, whether it originates from public or private facilities. Rejected brines are potentially a serious threat to marine ecosystems. However, here we demonstrate that this “waste” can be processed and reused as a nutrient mineral solution for a hydroponic production system and also a source of freshwater. The efficiency of this management process in terms of fresh-water production and water recycling economy is also discussed. The aim of this paper is to change the attitude towards rejected brines, which should be treated as potential raw material to permit high savings in the running costs of leisure and tourist facilities around the archipelago. In addition, this will also have a positive effect on the environment, making desalinization more sustainable and environmentally friendly, which is nowadays an added value in customer and user satisfaction.

中文翻译：

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用于休闲和旅游设施的水培和热太阳能蒸发系统中拒绝的盐水回收。变废为材

摘要 50 多年来，加那利群岛一直在使用海水淡化设施以满足其主要经济活动——旅游业的淡水需求，这继续为群岛的经济和社会进步做出贡献。然而，这种脱盐过程涉及生产称为废弃盐水的“废物”产品，这些产品从沿海地区和岛屿排放，无论它来自公共设施还是私人设施。被拒绝的盐水可能对海洋生态系统构成严重威胁。然而，我们在这里证明了这种“废物”可以作为水培生产系统的营养矿物溶液和淡水来源进行加工和再利用。还讨论了该管理过程在淡水生产和水循环经济方面的效率。本文的目的是改变对废弃盐水的态度，将其视为潜在原材料，以节省群岛周围休闲和旅游设施的运行成本。此外，这也将对环境产生积极影响，使海水淡化更具可持续性和环保性，这在当今已成为客户和用户满意度的附加值。