Avaliação de impacto em estudos sobre segurança de barragens: experiências de aplicação na estimativa do dano potencial associado

Resumo: Rupturas de barragens verificadas nas últimas décadas no País geraram impactos relevantes, motivando a edição da Política Nacional de Segurança de Barragens (Lei Federal 12.334/2010) e sua regulamentação, bem como a revisão contínua das normas em face de novos episódios posteriores, visando-se fomentar a prevenção e reduzir as consequências. Leia mais…

Characterization of na inactive dumpsite using electrical resistivity tomography and hydrochemcical data: a case study in Brazil

Abstract: Open dumping is one of the most common solid waste disposal methods in developing countries. As they lack planning and basic environmental protection engineering measures, dumpsites represent environmental and health risks that should be investigated. However, several dumpsites are abandoned without appropriate land-use management, difculting their proper environmental assessment. Leia mais…

Assessing the environmental impacto f oil spills in beach environments: a case study using the capacitive resistivity method

Abstract: The accident involving oil spill that occurred on the Brazilian coast in 2019 reached 2,880 km in extension, and more than 200 tons of oily material was removed from coastal environments in the northeast of the country in about five months. In the impact on beach environment there may Leia mais…

Estudo do comportamento de resinas epoxídicas utilizadas em sistemas de reforço quando expostas ao protocolo de degradação acelerado proposto pela norma = Study of the behavior of epoxy resins used in strengthening systems when exposed to the accelerated degradation protocol proposed by ACI 440.9R (2015)

Resumo: Atualmente, como alternativa de reforço de elementos de concreto armado, técnicas baseadas no uso de materiais compósitos, tal como a EBR (Externally Bonded Reinforcement, na língua inglesa), aplicada diretamente no substrato de concreto do elemento a ser reforçado com o uso de resinas epoxídicas, têm sido utilizadas. Embora os Leia mais…

Regional integrated solid waste management planning in Brazil, main challenges and opportunities: case of th Metropolitan Region of Baixada Santista, São Paulo, Brazil

Abstract: This article aims to present the development of the Baixada Santista Regional Waste Plan and outline the primary challenges and opportunities in regional planning. The Baixada Santista Metropolitan Region, located in the state of São Paulo, Brazil, comprises nine municipalities along the southern coast: Bertioga, Cubatão, Guarujá, Itanhaém, Mongaguá, Leia mais…

Strategies for selective collection of recyclables and environmental education in small cities: a case study in Brazil

Abstract: Recovering and recycling urban solid waste is still a great challenge for Brazilian municipalities, which have significant differences in technical, economic, and management capacities to implement selective collection schemes. Small municipalities often present fewer resources and weaker management structures, therefore requiring different waste management strategies than the ones implemented Leia mais…

Assessment of the landfills mining potential in inactive landfills in the state of São Paulo, Brazil

Abstract: Like in most developing countries, landfilling and open dumping are Brazil’s most common waste disposal methods. Besides the waste disposal sites in operation, most municipalities still have old dumpsites and uncontrolled landfills which received municipal solid waste in the past. This scenario leads to several issues, such as environmental Leia mais…

Mapping of chromite occurrence in a meta-ultramafic complex by magnetometric prospecting, Sul-Riograndense Shield (Southern Brazil) = Mapeamento de ocorrência de cromita em complexo metaultramáfico por meio de prospecção magnetométrica, escudo Sul-Riograndense (Sul do Brasil)

Resumo: Este estudo apresenta a utilização do método de magnetometria terrestre na caracterização de rochas ultramáficas metamórficas e mineralizadas com cromo na região de São Sepé (RS). As rochas mais preservadas são serpentinitos cinzentos a verdeescuros e ocasionalmente xistos magnesianos com dobras e fraturamento variável, que ocorrem como um corpo Leia mais…

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