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The RD law 4/2023 [1] stated that the administrations must promote the regeneration of urban water. Therefore, after analysing the current regulations and studying the possibilities of reuse [2], this study will estimate the percentage of reused urban water that currently meets the quality requirements, as well as the equivalent in the future. Its theoretical quantitative scope has been studied, with the possibility of extending its uses to other domestic activities, not only in the event of a disaster declaration, which is the current situation.
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Alegría et al. (2024) studied this question.
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