333 resultados para Lodos de esgoto
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The mechanical garages do varied types to activities related to the reparation from vehicles such as change from Motor oil, change and cleaning from car pieces, motor rectification, among others. These activities generate different kinds of waste and wastewater that when disposed in an inappropriate way can pollute the environmentand cause risks to the public health. Despite the environmental issues that involves these enterprises, they aren´t object of environmental licensing and there are any rules that regularizes their activities with the goal of these possible environmental impacts mitigation. The environmental diagnosis proposed by the present work has as goal the knowledge of the possible environmental aspects and their effects in the environment, for establishing control measures and from that to generate subsidy for environmental normatization of the sector in the municipal level. Furthermore, it should also define practices as waste production reduction, separation of them at the generator source and convenient final disposal, as well as wastewater production reduction and treatment of them before its launching in the wastewater network. The environmental diagnosis was based on a survey realized in garages from the city of São Carlos – SP, in order to define the more important characteristics of this activity that are related to the environment and public health. From the obtained information from the survey and the interpretation of the data, subsidy for the municipal environment management of the mechanical garages were generated.
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Este trabalho objetivou analisar a qualidade da água de três córregos tributários do rio Bauru, levando em conta a poluição causada por produtos orgânicos e industriais que vinham sendo descartados nos mesmos e as eventuais melhorias conseqüentes das medidas paliativas assumidas pelo DAE-Bauru, mediante a instalação de interceptores-coletores de águas residuárias ao longo Daqueles corpos de água, até que a Estação de Tratamento de Esgotos do município seja construída e se dê início ao seu funcionamento. O monitoramento destes corpos de água durante o período de estiagem e de cheias proposto nesta pesquisa, incluiu investigações sobre as variáveis químicas e físicas de amostras das águas, obtidas mensalmente em 7 pontos de coleta, localizados a montante e a jusante dos pontos de instalação dos emissários, ao longo dos córregos. As amostras de água foram posteriormente analisadas para fossem obtidas informações sobre a eficácia da instalação dos interceptores com relação ao processo de recuperação da saúde dos corpos aquáticos em questão. Os resultados obtidos mostraram que, de um modo geral, as águas de todos os sistemas estudados ainda sofrem impactos, até porque ainda há aquelas que recebem o esgoto descartado “in natura”. No entanto, como ja era esperado, nos pontos de coleta localizados em segmentos dos córregos nos quais os emissários já foram instalados, o impacto ambiental é menor. Mediante a comparação dos resultados obtidos das análises das características físicas e químicas das águas dos sistemas estudados realizadas durante esta investigação com aqueles obtidos nos mesmos corpos de água, em 2007, pudemos observar melhorias da água em alguns dos pontos de coleta
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Currently exists a growing concern for the preservation of the environment Around the world, the environmental awareness in Brazil has strengthened during the past two decades. This concern in Brazil arises from the creation of mechanisms of supervision and punishment on the part of the environmental agencies. In order to meet the pertinent legislation many public and private companies have performed dehydration of waste generated in the process of treatment of industrial effluents, waste water and water treatment in order to reduce transport and disposal costs. The use of geotextile tubes has proven technically and economically feasible to be applied in various situations from water treatment to mining tailings. This work presents the solution adopted for an environmental liability in water treatment plant through the use of geotextile tubes to reduce the water content of the disposal. We evaluated the size distribution curves, Atterberg limits, and chemical composition of the residue. Found high concentrations of aluminum in the waste which would characterize environmental pollution if disposed off directly in nature with no treatment
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The concern with the environmental planning has become important in Brazil recently. Until then, nature was conceived as a resource, because of the implementation of developmental policies that perdured to the 1970s, based on the expansion of the industrial complex, altogether hadn´t preoccupation by the federal government with the relationship between society and nature. During this period, after the threat of not receiving more international investment to finance large projects in the country, accompanied by pressure from civil society organizations, the federal government began to take some action related to the environment, such as the creation of federal agencies (IBAMA), application of environmental laws and decrees in order to create rules for the proper use of natural resources such as water, soil and air. From the decade of 1990 onwards the master plans have become a mandatory document for all municipalities in the country with a population over 20,000 inhabitants, ranging from health issues to the development of urban, rural and environmental planning. Thus, the environmental planning gained prominence in the political scene. Therefore, to achieve environmental planning is necessary to follow some social and environmental parameters, which for this survey, conducted in the District of Ameliópolis – Presidente Prudente... (Complete abstract click electronic access below)
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Não disponível
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Brazil has one of the largest cattle herds in the world, so the cattle slaughter is one of the most important economic activities in the Brazilian market. But this activity requires a high demand of water, resulting in serious problems about the correct disposal of wastewater generated in the process. This effluent has a high pollution load, becoming its receiving bodies (streams and rivers) unfit for various activities such as public water supply, recreation, fisheries. To minimize the environmental impacts of its industrial wastewater and fallow the local environmental legislation, refrigerators must make the treatment of these effluents. This study aimed to verify the efficiency of a enzymatic reactor, when occur hydrolysis of lipids present in the effluent industrial of an cattle slaughter industry. The treatment system used was composed of two separate reactors: one being the anaerobic fluidized bed reactor (AFBR), inoculated with immobilized enzymes on the matrix support, and the other by sequential batch reactor (SBR) inoculated with activated sludge. Whereas, the reactors have been developed and installed at the Wastewater Treatment Laboratory, Faculdade de Ciências e Tecnologia, UNESP, campus Presidente Prudente. The procedure operating occurred differently for each reactor: preparation and inoculation of enzyme granules, filling the reactor, hydrolysis, and AFBR emptying, filling, aerobic reaction, sedimentation, and emptying the SBR. We performed three experimental stages, with the first and second stage of the work were done reactor analyzes separately, and the third step of the analysis were made with the interconnected reactors... (Complete abstract electronic access below)
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The work is to study about the quality of surface waters of the Piaguí and neighborhoods Colonia Santa Luzia. Six samples of which the physical, chemical and biological parameters were analyzed were collected. The tests were conducted in accordance with Standard Methods for the Examination of Water and Wastewater 20th edition and compared with the resolution of CONAMA No. 357 (2005). Critical parameters are found in fecal coliform and water coloring, which may indicate an anthropogenic interference in the sampling points (domestic sewage), or the effect of rainfall during the collection period influence the results
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The new modes of production imposed by capitalism and its relentless pursuit of development triggered several impacts on the natural environment and thereby the quality of life of society. These impacts become more visible when we look the urban place. For the identification and proposal of solutions is necessary to carry out an environmental diagnosis to have knowledge of the real situation of a given area. The Presidente Bernardes city is located in West of the São Paulo State, and even being a small city has many problems resulting of the unplanned urban growth. Thus, the present work intends to conduct an environmental diagnosis of the city Presidente Bernardes-SP, through the analysis of water supply systems, sewage treatment, collection and disposal of solid waste and green areas in the urban area and if required, indicate plausible alternatives to solve any problems
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Pós-graduação em Agronomia (Agricultura) - FCA
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Over the years, water has become an increasingly valuable resource and scarce, this situation is attributed to factors such as population growth, poor distribution and increasing degradation of water resources as a result of indiscriminate human activities in the middle environment, making their dwindling availability and increasing its cost. I n this context , the use of rainwater for non-potable purposes begins to be stimulated in Brazil , as a measure to preserve this resource , while in countries such as Japan and Germany , this technique has already been used for a long time. The ability to capture rainwater reduces the demand for sanitation companies, also resulting in cost reduction with the water bill and the risk of flooding in the event of heavy rains. The stored water is used only for non-potable purposes, such as toilets, taps into the garden, for washing vehicles and clothing. This work was developed with the aim of presenting the importance of rational use of water, associated with viability constructive economic and consumption of the installation of rain water harvesting, and for that, considered four case studies. From this study, it was found that the implementation of this system has led to a reduction in costs of water and sewer consumption poses no hazard to the user and its installation does not require significant changes in building construction, however, in relation to the economy, should be made a detailed analysis in each case for investment to bring a suitable financial return within the lifetime of the system
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The progressive growth of the population and the increase of sewage generated has demanded of society and public policies that, besides the collection network deployment is carried out the treatment and proper disposal of treated sewage in all brazilian municipalities. The aim of this study was to monitor and evaluate the work of implementation of a Sewage Treatment Plant (STP) in Guaratinguetá city of São Paulo state, to identify the compliance with legal requirements and the NBR 12,209/2011. The construction of this ETE met all the requirements of NBR 12209/2011 and benefited a large portion of population with the sewage treatment. Based on the results of this assessment it was concluded that the construction of a STP is relatively simple, differing only on the legal requirements related to the location, area for the construction and materials used in the work. The knowledge generated in this study will assist the public policies in the implementation of STPs in municipalities that do not yet have this basic sanitation
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Pós-graduação em Química - IQ
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)