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The Açu Port Complex is a private port-industry located in a region with low water availability. There are several ways to obtain this resource, fitting a management to determine the most viable alternatives taking into account the triple bottom line structure, which are the social, environmental and economic aspects that concern organizations. The aim of this study is to propose an alternative solution for drinking water supply for an industrial plant installed in the Açu complex. The multicriteria method of Analytic Hierarchy Process (AHP) was applied to define the most appropriate process among underground water catchment, local water procurement or rain collection. Underground catchment becomes a problem as it has a high degree of salinization and high cost and the local water procurement causes environmental impacts. It is therefore revealed that the capture and treatment of rainwater is the most appropriate alternative to meet the company’s demand. The choice can be justified by the company's large catchment area and the high weight given to the environmental criterion. It was also seen that this alternative becomes even more viable when considered in the commissioning phase of an industry, once at this stage the costs and impacts are pretty lower. The proposed method allowed an appropriate approach to address water supply problems, proving to be an effective tool for multi-variable scenario analysis.

FORNECIMENTO DE ÁGUA POTÁVEL EM UMA INDÚSTRIA DE ÓLEO E GÁS: ESCOLHA MULTICRITÉRIO EM UMA PLANTA INSTALADA NO COMPLEXO DO PORTO DO AÇU/RJ