Abstract:Este artigo foi realizado com o intuito de analisar os conflitos no
âmbito da bacia hidrográfica brasileira do rio Paraíba do Sul – na divisa
entre os estados de São Paulo, Rio de Janeiro e Minas Gerais –, a partir da
eclosão da crise hídrica de 2014-2015. Para tal, trataremos da expressão
política e institucional da bacia hidrográfica para, em seguida, avaliar
seus respectivos mecanismos de … Show more
“…The Paraiba do Sul river that runs through three Brazilian states, São Paulo, Minas Gerais, and Rio de Janeiro, has a social and economic importance, being located in one of the most industrialized regions of the country, in addition to its use in agriculture and for supplying the population (Cavalcanti and Marques 2016 ; Miguens et al 2016 ; Paiva et al 2020 ). The Paraíba do Sul basin covers 184 municipalities, 39 in São Paulo, 57 in Rio de Janeiro, and 88 in Minas Gerais, and has, according to the IBGE (2021), a population of approximately 6.7 million inhabitants, according to Fig.…”
Section: Methodsmentioning
confidence: 99%
“…The Paraíba do Sul basin covers 184 municipalities, 39 in São Paulo, 57 in Rio de Janeiro, and 88 in Minas Gerais, and has, according to the IBGE (2021), a population of approximately 6.7 million inhabitants, according to Fig. 2 (Cavalcanti and Marques 2016 ). Fig.…”
In recent years, the demand for clean water has been growing all over the world despite the different threats posed, including increasing pollution, increasing deforestation and climate change. Industrial activity is the second largest consumer of water, so highly industrialized regions are more susceptible to water stress. In this sense, reuse strategies have been progressively discussed and used around the world; however, in Brazil there is still place for many advances, whether due to lack of incentives, cultural issues in society, or poor regulation of the subject. The objective of this work was to carry out a diagnosis of raw water uptake by industries in one Hydrographic Region of the state of Rio de Janeiro and to propose a discussion on the adoption of water reuse practices for non-potable purposes from the use of treated effluents. A survey of the theoretical framework on the subject was carried out, as well as an analysis of sustainability indicators and reports of the companies, including the current licensing processes of large undertakings consuming water resources. With this study, it was possible to obtain the average cost of implementing a water reuse unit for an industry in the state of Rio de Janeiro-Brazil, which, despite still being expensive, has a strong tendency to use due to world water shortages. Finally, it was concluded that the state of Rio de Janeiro has a threat of water scarcity that could be aggravated in the coming years, if measures and investments in supply alternatives are not adopted (water reuse), and improvement in all stages of water management water resources.
“…The Paraiba do Sul river that runs through three Brazilian states, São Paulo, Minas Gerais, and Rio de Janeiro, has a social and economic importance, being located in one of the most industrialized regions of the country, in addition to its use in agriculture and for supplying the population (Cavalcanti and Marques 2016 ; Miguens et al 2016 ; Paiva et al 2020 ). The Paraíba do Sul basin covers 184 municipalities, 39 in São Paulo, 57 in Rio de Janeiro, and 88 in Minas Gerais, and has, according to the IBGE (2021), a population of approximately 6.7 million inhabitants, according to Fig.…”
Section: Methodsmentioning
confidence: 99%
“…The Paraíba do Sul basin covers 184 municipalities, 39 in São Paulo, 57 in Rio de Janeiro, and 88 in Minas Gerais, and has, according to the IBGE (2021), a population of approximately 6.7 million inhabitants, according to Fig. 2 (Cavalcanti and Marques 2016 ). Fig.…”
In recent years, the demand for clean water has been growing all over the world despite the different threats posed, including increasing pollution, increasing deforestation and climate change. Industrial activity is the second largest consumer of water, so highly industrialized regions are more susceptible to water stress. In this sense, reuse strategies have been progressively discussed and used around the world; however, in Brazil there is still place for many advances, whether due to lack of incentives, cultural issues in society, or poor regulation of the subject. The objective of this work was to carry out a diagnosis of raw water uptake by industries in one Hydrographic Region of the state of Rio de Janeiro and to propose a discussion on the adoption of water reuse practices for non-potable purposes from the use of treated effluents. A survey of the theoretical framework on the subject was carried out, as well as an analysis of sustainability indicators and reports of the companies, including the current licensing processes of large undertakings consuming water resources. With this study, it was possible to obtain the average cost of implementing a water reuse unit for an industry in the state of Rio de Janeiro-Brazil, which, despite still being expensive, has a strong tendency to use due to world water shortages. Finally, it was concluded that the state of Rio de Janeiro has a threat of water scarcity that could be aggravated in the coming years, if measures and investments in supply alternatives are not adopted (water reuse), and improvement in all stages of water management water resources.
“…The Paraíba do Sul River (PSR) basin is in the Brazilian Southeast region and covers an area of 62,074 Km 2 in the states of São Paulo, Minas Gerais, and Rio de Janeiro. The channel of the PSR has a length of approximately 1200 km (Ovalle et al, 2013;Cavalcanti & Marques, 2016). This lotic water body is used for public supply, irrigation, fishing, recreation and to protect aquatic communities.…”
Section: Study Area and Field Samplingmentioning
confidence: 99%
“…From 2011 was observed a gradual reduction of rainfall in this region, which reached the lowest annual values in 2014. This scenario affected water quality, storage, and public supply in the main cities in the Brazilian Southeast (Agência Nacional de Águas, 2014; Cavalcanti & Marques, 2016;Neves & Vilanova, 2021).…”
“…O Brasil é considerado um país privilegiado quanto à questão hídrica, porém fatores como a diminuição de matas ciliares, despejo de efluentes domésticos, industriais e agrícolas têm ocasionado a depreciação da qualidade desse recurso em nosso país. Diante da importância econômica e biológica da água, é necessário que se busque mecanismos de gestão eficazes de modo a garantir seu uso eficiente e sustentável (Cavalcanti, 2016).…”
A demanda atual por mecanismos de gestão de recursos hídricos que considerem a quantidade e qualidade das águas tem sido prioridade, já que se trata de um recurso de extrema importância à manutenção da vida e à continuidade das atividades econômicas. A Bacia Hidrográfica do Rio Paraíba do Sul é responsável pelo abastecimento de milhões de pessoas e indústrias ao longo dos estados de Minas Gerais, São Paulo e Rio de Janeiro. Devido a sua importância, é necessário o monitoramento contínuo visando verificar se suas águas estão adequadas para seus múltiplos usos e para manter a sua qualidade ecossistêmica. Nesse contexto, o objetivo principal do presente trabalho foi analisar alguns parâmetros de qualidade de água em um ponto do rio localizado no Baixo Paraíba do Sul, na localidade de Martins Lage, município de Campos dos Goytacazes-RJ, de forma a verificar se a qualidade da água do referido ponto está de acordo com o enquadramento concedido ao trecho do rio em questão. Para isso, foram realizadas coletas ao longo de todo o ano, entre o período de 2015 a 2018. As análises foram realizadas no Laboratório de Análise e Monitoramento das Águas, do Polo de Inovação Campos dos Goytacazes. Com os resultados obtidos, foi possível observar variações ao longo dos anos em todos os parâmetros, porém, em sua maioria, eles se encontram dentro da classificação do trecho (água doce/classe III) segundo legislação vigente.
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