882 resultados para Minas e recursos minerais - Aspectos ambientais


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The environmental problems generated by construction activity have been widely discussed in Brazil, which has begun to incorporate sustainable building techniques in your ventures. Based on these facts, this work focused on addressing the main characteristics of a sustainable building project. Among them are water conservation, energy efficiency in buildings, managing a construction site with little environmental impact and reuse of materials and construction elements. This work, after the presentation of the main characteristics of a sustainable building project, shows a case study about the implementation of environmental certification LEED Gold level in a large building, located in São Paulo - SP, Brazil. With that, we want to produce a research document about the topic of sustainable buildings

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This work presents the results obtained in analyzes of aggregates from construction and demolition waste produced by the plant of the City of Guaratinguetá. Using this data and comparing with the specifications of NBR 15115, it was found that the materials do not possess the requisite minimum characteristics to be utilized as a basis for low-pavement traffic. In order to identify the main reasons of the material does not fit in the standard, we used the data obtained in a study conducted by Professor. Dr. Luiz Eduardo de Oliveira at the plant of the company AB Environmental Solutions Ltd., located in Pindamonhangaba. With different characteristics, the aggregates from construction and demolition waste produced by this plant showed the possibility of using pavements. The use of these residues in paving reduces the impact on the environment caused by construction.

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Due to the great impact caused by construction, the university has a major role in the development of alternative projects and studies aimed at sustainable development. This project presents the advantages and importance of building in a sustainable manner from the beginning to end of the Center of Experiences at UNESP, Rio Claro / SP. It will be presented alternative building materials that have high environmental performance and that bring the least negative impacts as possible. Providing a Center of Experiences through a sustainable building is in need of the university to renovate the new trends of society in which the construction is in harmony with the environment in which it is inserted. This sustainable building will serve as a model for students and residents of Rio Claro, since the building itself will serve as a way of learning to the audience goer, as well as for the other campuses of UNESP. Thus, this project will serve as a guide for decision makers facing the huge amount of building materials available in the market

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Naturally characterizes the human being the interference in the environment to ensure their survival and also convenience. After numerous environmental accidents caused by unbridled pursuit of this goal, the concern about providing for current needs without compromising the ability of the future generations to supply their own, gained space. In order to contribute to sustainable development the Life Cycle Assessment (LCA) was implemented. This tool is based on the concept that if the environmental impacts of a product or service are known, it is possible to take better decisions concerning its environmental aspects. The purpose of this research is to conduct the LCA of polyvinyl chloride (PVC), the world’s second most consumed thermoplastic. The methodology described in NBR ISO 14040 and NBR ISO 14044 was followed. As a result, the LCA of polyvinyl chloride produced in Brazil was obtained, and, therefore, the inventory of the product in question adapted to Brazilian reality. The research can be applied to various studies considering that actions were taken to ensure that it represents the Brazilian reality. Moreover, the procedures were described to guarantee the greatest transparency possible

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This academic work has as its objective to demonstrate the fundamental role of communication as a tool towards implantating an environmental management project in organizations, aswell as familiarizing with the complex relashionship be-tween green businesses and its publics. The concern involving environmental prob-lems are increasing and it directly affects the consumer’s choice and their requests on organizations’ behavior. The integration with all sectors of economy is necessary as a part of a developing process that has as its main objective the environmental conservation and therefore the quality of human life on planet. There is also the question of how in the process of communication there is not an only way of interven-tion, but a continuous reciprocal action. The work is accomplished with an analyses of the green management communication of the business Grupo Abril

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O século passado foi marcado por grandes avanços tecnológicos na agricultura que culminaram com a chamada “Revolução Verde”, a qual é hoje, comprovadamente, considerada como um modelo insustentável. Tal fato tem motivado instituições científicas e agricultores a buscarem por novos paradigmas para a produção. A agroecologia tem se destacado por abordar o manejo de agroecossistemas dentro de uma visão holística, sistêmica e participativa, subsidiando a recuperação das suas funções e a autonomia durante a transição agroecológica. Nesse contexto, a utilização de ferramentas para avaliação e monitoramento do processo, como a análise de indicadores de sustentabilidade, é fundamental. O presente estudo teve como objetivo monitorar participativamente o grau de sustentabilidade de duas unidades de produção orgânica em Jaguariúna-SP, após cinco anos de uma primeira avaliação. Foram analisados 81 indicadores, abordando quatro dimensões da sustentabilidade: ambiental, social, econômica e política. Os resultados foram obtidos de forma consensual e participativa entre pesquisadores e agricultores, enriquecendo o estudo. Do ponto de vista global, houve um leve avanço no grau de sustentabilidade das duas propriedades. No entanto, ambas continuam no mesmo nível de transição agroecológica apresentado em pesquisa realizada em 2005.

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From the beginning of the century, with the advent of the flex fuel car, successor fluctuations in oil prices and the rise of awareness of the impending shortage of fossil fuels, the alcohol sector begins to reappear in the panorama of national economy making Brasill reaches the point of becoming a leading exporter of this product. Ethanol assumed the role of such importance in Brazilian exports, which Petrobras through the Growth Acceleration Program (PAC) has made investments in the Brazilian pipeline network to better ensure the production of ethanol to major ports. The means of transport in pipelines are safe and inexpensive, but require careful evaluation in its implementation, they may lead to negative social and environmental impacts. Thus, the purpose of this project is to propose the best route for an ethanol pipeline connectin the Tietê-Paraná, leaving the municipality of Santa Maria da Serra (SP), to the Planalto Paulista Refinery (REPLAN), located in Paulinia (SP), belonging to the passage of ethanol export corridor, currently under revelopment. The technique used for the development of the stroke is the association of multicriteria evaluation, the geographical information system (SIG) and geotechnologies. This study presented three possible layouts for the ethanol pipeline, highlighting the best option, in addition, demonstrated the suitability of the area to receive projects of similar nature to a pipeline

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With increasing frequency and intensity of climate disasters in Brazil, it is necessary studies on mitigation measures. From this spatialization of areas considered risk becomes essential to assist the public in preventive plans. Floods and flooding are the main types of climatic disasters that hit our country, especially the state of Sao Paulo, mainly by self degree of urbanization. From the data provided by the State Civil Defense was possible to create a database with the localities georelacional occurrences of flooding in the state in which through techniques of GIS (Geographic Information System) enabled the interrelationship and spatialization occurrence of areas affected This will help to determine potential areas of risk and different ways to prevent these disasters

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Currently, the dam of Salto Grande is very degraded. Water quality is seriously amended, and lack of riparian vegetation, as well as the advance of feed crops and land occupation in areas that should be permanently preserved, only complicate this situation. The permanent preservation area is essential for the water sources protection, soil erosion control and consequent watercourse sedimentation. Through aerial photography, using GIS techniques, it was able to identify the outwards bounds of the dam, to demarcate the permanent preservation areas and generate maps for land use. With this data, in addition to studies and ideas of reforestation in different environments, the development of a plan for restoration of degraded areas surrounding the dam is easier to be done. This study confirmed that about 72% of land use in permanent preservation areas is not in accordance with specific laws, making necessary its recovering.

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Taking as starting the environmental, social and economic impact of construction and demolition waste in Brazilian cities were created legal mechanisms for management and administration, seeking to minimize the impacts to the maximum, since the irregular deposition can be characterized as environmental crime. CONAMA Resolution No. 307 of 2002 establishing the mandatory implementation of an Integrated Management System Construction Waste and Demolition, guiding the classification and designation of the waste generating agents, collection agents and transporters, and the areas of culling and disposal of waste. The technical partnership between the Ministry of Cities, the Environment Ministry and the Caixa Econômica Federal, coordinated by Pinto & Gonzales (2005) Management in the work and management of construction waste, proposed a guidance manual to guide the implementation of a System Integrated Management of Construction Waste in Municipalities. The municipality of Guanambi in the state of Bahia, in full economic rise, lacks a waste management of construction and demolition, since there has areas for the disposal of waste being proposed in this paper the diagnosis of waste generation in the municipality as part of the methodology proposed by the work of Pinto & Gonzales (2005).

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The problem of flooding in urban areas exist in many cities and their causes are as varied as the areas of occupancy or Valley weatherproofing Fund areas of infiltration in the drainage basin. The anthropic activity come triggering changes and impacts on the environment for a long time, and there is a growing need to come up with solutions and strategies that minimize and reverse the effects caused these risk areas. Thus, the present work will address the case study in São José do Rio Preto-SP that is an exception, since the area that is considered of risk lies in the Centre, unlike most lying on the outskirts. This will also analyze the processes of urban expansion and the situations of social and environmental vulnerability, including their interrelations in urban scale. The physical study of the area will serve as an important basis for the work, but it will focus mainly on the population and the problems which this is being in hazardous areas. We will not join a single methodology, wharever, we will follow our knowledge to adapt what we feel that fits better, every time. The importance of this study is that in addition to identifying the problems which the local population suffers with floods, lists measures that minimize the environmental impacts arising through the fostering of public policies

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Deconstructions, although hardly covered in Civil Engineering courses, are a very important field of study. Due to numerous factors, such as obsolescence, buildings life cycle comes to an end leading to their deactivations. Decommissioning is a process that intends to plan the hole deactivation by providing the cleaning of contaminated areas, avoiding risks to public health, as well as promoting a screening of generated waste, whether dangerous or not, offering their correct disposal or even reuse when possible. Decommissioning must be developed by a plan that covers from the recognition of the area until its releases to other uses. When this procedure is appropriate, attention must be paid to the cost effective of its implementation and to the cleaning standard that the plan intends to reach. The execution of the service allows to reuse the area, becoming productive again