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Management of water use in the Paraíba River, PB, Brazil basin based on water grants and charge models

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posted on 26.12.2018, 05:31 by Márcia Araújo de Almeida, Wilson Fadlo Curi

One of the challenges in the management of water resources is to advance water distribution mechanisms to allow them to balance the basin's available water with the demands of its various economic sectors. This research evaluated the combined use of a model of grant optimization with a proposed model of charging for the use of raw water in order to assist decision makers in the distribution of water of the Acauã Reservoir, located in the basin of the Paraiba River in the State of Paraiba, Brazil. The grant model allowed optimizing the achievement of the demand requests according to water use priorities defined in four scenarios, balancing demand and availability. It was shown that it can be used in decision-making processes in the evaluation of new grant requests in basins controlled by reservoirs. The proposed charging model incorporated various profiles of water users using various coefficients which enabled the definition of the amount to be charged to encourage the rational use of water, not just a tax collection mechanism.

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