999 resultados para Tratamento esgoto sanitário


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Pós-graduação em Agronomia (Ciência do Solo) - FCAV

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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The objective of this work was to develop a numerical method to solve boundary value problems concerning to the use of dispersion model for describing the hydraulic behavior of chemical or biological reactors employed in the wastewater treatment. The numerical method was implemented in FORTRAN language generating a computational program which was applied to solve cases involving reaction kinetics of both integer and fractional orders. The developed method was able to solve the proposed problems evidencing to be a useful tool that provides more accurate design of wastewater treatment reactors

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In this assignment, will be assessed the conditions of operation for the final disposal of household solid waste landfill in the city of Cachoeira Paulista-SP. The theme chosen for research is of great social importance therefore is directly related to the well-being of the people, sustainable development, environmental protection and public health. Everyone should be aware of the problems related to improper final disposal of solid waste of any kind. The objectives of the study were: analyse the conditions of operation of the landfill; verify the treatment technology of percolating liquids (slurry) generated in the landfill; examine whether the landfill obey the rules; which cities in the region depend on the disposal system, verify that there are flaws in the final destination of solid waste in the municipality and in the cities of the region. The research is primarily a bibliographic review, obtained by querying the database and virtual libraries. Technical visits were also held at the study site, to check spot the methodology employed in the operation of landfill This work concluded that for the period under study, the landfill was as a landfill site, therefore, in accordance with the rules of operation

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Engenharia Civil - FEIS

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Pós-graduação em Medicina Veterinária - FCAV

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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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Os processos de decomposição dos resíduos sólidos resultam em uma importante fonte de poluente tóxico, o percolado, usualmente denominado de chorume, podendo causar graves impactos ambientais em ecossistemas vizinhos, se não for drenado e tratado adequadamente. No tratamento eletrolítico de efluentes aquosos, os poluentes sofrem degradação oxidativa. Visando o tratamento do percolado de aterro sanitário, foram analisados os parâmetros de pH, temperatura, DQO, condutividade, amônia e absorbância, utilizando-se de uma densidade de corrente de 125 mA.cm-2. As regas na espécie Helianthus annuus L., girassol da família Asteraceae, foram realizadas durante 95 dias com 11 tratamentos do percolado bruto e tratado em concentrações de 25, 50, 75 e 100% de percolado com a adição de Na2SO4, esta última concentração também sem adição de Na2SO4, a fim de avaliar a sobrevivência e o crescimento dessa espécie. Ao final do experimento, os valores de crescimento mais expressivos foram para o percolado 100% sem Na2SO4 mostrando que: a altura total obteve uma diferença em 27% menor no tratado; o diâmetro da base do caule mostrou uma diferença 45% menor do tratado em relação ao bruto; o número de folhas foi de 65% menor e área foliar de 51% menor do tratado em relação ao bruto, indicando que mesmo em crescimento o Grupo Tratado permaneceu menor durante a maioria das medidas das variáveis biométricas do girassol BRS 323. Todos os vasos regados com chorume tratado tiveram uma redução no peso seco das partes aéreas, chegando a uma redução média de 72% na concentração 100% de chorume sem a adição de Na2SO4

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The issue of environmental impacts to human health and the generation and disposal of solid waste has led to a change of paradigms for your face, highlighting the need for sustainable management of municipal solid waste (MSW). In this context, the expansion of landfills in Brazil in recent decades makes it necessary to sustainable management of waste generated by this type of enterprise, since its implementation. The aim of this study was to perform a diagnosis of the generation of waste in a landfill, in the expansion phase, and the alternatives adopted for its management. The qualitative diagnosis was made from observations on site and the wastes were classified and quantified from August 2011 to January 2012. In the diagnosis was considered the reduction, reuse and recycle, in that order. The results of this study showed that the residue of the greatest generation was PEAD geomembranes used in the waterproofing of the landfill, reaching 7 t, followed by PVC pipes, which reached 850 kg, both destined for recycling. The largest volume of wastewater generated corresponded to the leachate, reaching 11,500 m3 , which were sent for treatment