Navegando por Autor "MENDES, Ronaldo Lopes Rodrigues"

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Acesso aberto (Open Access)
Geofísica aplicada ao mapeamento de aquíferos da Região Metropolitana de Belém
(Universidade Federal do Pará, 2000) MENDES, Ronaldo Lopes Rodrigues; VERMA, Om Prakash; http://lattes.cnpq.br/2723609019309173
Today, about 46% of the drinkable water consumed in the city of Belém is underground water, showing the great importance of this source, even in an area that is rich in surface water as the amazon region. This importance is due to a failure in executing of an established planning. In addition, the costs of works of explotation of superficial waters are very high. Thus, the alternative for Belém has been the underground water, as a good, healthy and economic palliative. The existence of an enormous amount of water resources in the Barreiras sediments and the Pirabas formation contributes to this alternative. The former were deposited in fluvial and estuary environment, while the Pirabas formation possesses facies of estuary, mangrove and oceanic origin. In the presented context, it is necessary to investigate such resources to obtain an optimum benefit from them. For this end, two geophysical methodologies were integrated: the Vertical Electric Soundings (VES) and Geophysical Well Logging, using gamma rays, spontaneous potential and electric resistance. Two aquifer environments can be discerned. The first one extends to nearly 160 m of depth, and comprises sandy bodies in forms of channels and lenses, interrupted or not, imbedded in a shaly matrix. The second one is characterized by extensive sandy beds with lenses of clay, and its depth extends from 160 m up to 285 m, approximately. The consumption of water of the superior aquifer is adequate for residences and condominiums, because of the high cost of great depth wells. The public provisioning should use the inferior aquifer, due to its high discharges (larger than 100 m3/h) and its water of better quality, protected of anthropic actions, as it is being done.
Acesso aberto (Open Access)
Governança da água na Amazônia paraense: uma análise no uso da outorga de direito de uso dos recursos hídricos
(Instituto Brasileiro de Informação em Ciência e Tecnologia, 2022-09) MAIA, Paulo Cesar Chagas; VASCONCELLOS SOBRINHO, Mário; MENDES, Ronaldo Lopes Rodrigues
The paper analyses how the grant (outorga) is a relevant tool for decision-making in the institutional process of water territories’ governance. In the context of social and institutional transformations, the water’s use, typology and purpose are emphasized by hydrographic region in Pará state. Theoretically, the research took into account the literatures of water governance, integrated water resources management and water resources right granting. Methodologically, the research was based on a quantitative and qualitative case study. A documental analysis was carried out on the texts produced by the Secretary of State for the Environment and Sustainability (SEMAS), particularly environmental management reports, state list of grants and State Water Resources Plan (products and diagnostics), accessed from the Pará State Water Resources Management System (SEGRH) and the Pará State Water Resources Information System (SEIRH/PA). The paper shows that the grant (outorga) is a relevant legal tool for environmental conservation. Accordingly, its use limits, values and rationalizes the sustainable water’s use in the territory and brings great benefits to the enterprises and local environmental public management. Through this instrument, it was possible to identify and spatialize the number of large enterprises that most use the grant in the state, with emphasis on groundwater drilling, disciplining its regulation in the hydrographic regions, subsidizing the process of governance, planning and management of territories of water.
Acesso aberto (Open Access)
A importância da outorga de direito de uso dos recursos hídricos na gestão do território do estado do Pará
(Universidade da Amazônia, 2020-11) MAIA, Paulo Cesar Chagas; SILVA JÚNIOR, Monaldo Begot da; FARIAS, Monique Helen Cravo Soares; VASCONCELLOS SOBRINHO, Mário; MENDES, Ronaldo Lopes Rodrigues
Acesso aberto (Open Access)
O uso da tecnologia social de aproveitamento de água da chuva e a interação das partes envolvidas com o sistema (Stakeholders) – o caso das ilhas de Belém e região
(Universidade da Amazônia, 2020-11) DIAS, Luís Augusto Lisboa; MENDES, Ronaldo Lopes Rodrigues