Sludge Of Sewage Treatment Plant
Mostrando 25-36 de 54 artigos, teses e dissertações.
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25. Uso de lodo de esgoto na cana-de-açúcar como fonte de nitrogênio e fósforo: parâmetros de fertilidade do solo, nutrição da planta e rendimentos da cultura / Use of sewage sludge on soil planted with sugarcane as nitrogen and phosphorus source: soil fertility attributes, plant nutrition and yield
The use of sewage sludge on land can improve soil fertility considering nitrogen, phosphorus and organic matter inputs. The aim of these experiments was to evaluate the effect of sewage sludge on soil, sugarcane plants and sugarcane yield in substitution to nitrogen and phosphorus from mineral fertilizers. The effect of the sewage sludge as a source of nitro
Publicado em: 2006
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26. "Técnicas espectroscópicas aplicadas à análise da matéria orgânica do solo em pomares de citros sob adição de lodo de esgoto" / "Spectroscopic techniques applied to the soil organic matter determination in citrus cultivations under sewage sludge application"
The production of sewage sludge increases daily in treatment stations and definitive disposal is a problem to be resolved. One of the alternatives found to dispose such residues, with environmental and economic benefits, is agricultural recycling, owing to its organic composition and plant nutrients. The objective of the present work was to asses the effects
Publicado em: 2006
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27. Guidelines to train capable manpower responsible for the proper operation the Upflow Anaerobic Sludge Blanket reactors sewage fludge, focusing pH and alkalinity as performance indices / Diretrizes para a capacitação de mão-de-obra responsável pela operação de reator anaeróbio de fluxo ascendente e manta de lodo (UASB)
The present work analyzes and describes the technical and operational aspects relative to the anaerobic treatment thru the utilization of Upflow Anaerobic Sludge Blanket Reactors (UASB), aiming to elaborate necessary guidelines to train manpower responsible for the operation. The methodology sought to establish the necessary operational condition and the ass
Publicado em: 2006
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28. Definição de alternativas de pré-tratamento de efluentes não domésticos em sistemas públicos de esgotos, utilizando o teste de avaliação da toxicidade refratária. / Definition of petreatment alternatives to non domestic effluent in public owned treatment works (POTWs), using the refractory toxicity assessment test (RTA).
Typically, the cause of effluent aquatic toxicity is unknown. Due to this and the complex makeup and varying toxicants in individual waste streams, a toxicity reduction program must usually begin at the discharge and proceed upstream to find the source. The key toxicant(s) and the actual toxic mechanism are normally not apparent from traditional characteriza
Publicado em: 2006
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29. Potencial do lodo de esgoto calado como insumo agrÃcola para a cultura do milho em latossolo vermelho
The sewage sludge is a by-product resulting of the sewage treatment that contains high organic matter concentration and that, properly applied, it can to supply improvements in the soil fertility. The objective of this study was to evaluate the sewage sludge agricultural potential. The experiment was accomplished in field, in the year of 2004, with randomize
Publicado em: 2005
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30. Recuperação de solo de area de emprestimo com lodo de esgoto
The effect of the sewage sludge mud was evaluated in the recovery of an underground degraded due to the retreat of thick layer of original soil (loan area) more than 30 years ago, for occasion of the construction of the Ilha Solteira Hydroelectric Power Plant. The area is located in the municipal district of Selvíria, MS State, having been used in the const
Publicado em: 2005
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31. Identificação de modelos para controle preditivo : aplicação a uma planta de lodos ativados
This work deals with the synthesis of an adaptive predictive controller, based on reduced models obtained via identification oriented to predictive control. The methodology proposed involves two important areas for the success of the identification experiment. In the first one, excitation signal design, it is shown how pseudo-random multilevel signals can be
Publicado em: 2005
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32. Nitrogênio e metais pesados em latossolo e eucalipto cinqüenta e cinco meses após a aplicação de biossólido. / Nitrogen and heavy metals in the soil and in eucalyptus grandis leaves 55 months after biosolid application.
Concern regarding environmental quality and human health demands wastewater treatment technology and, with this treatment, sewage sludge is generated. The sewage sludge, after a properly microorganism reduction and physically conditioning, is usually known as biosolid. One of the alternatives for biosolid final disposal is the application in agriculture in a
Publicado em: 2004
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33. Fração orgânica de biossólidos e efeito no estoque de carbono e qualidade da matéria orgânica de um Latossolo cultivado com eucalipto. / Organic fraction of the biosolids and effect on carbon stocks and organic matter quality in an oxisol planted with eucalyptus.
The aim of this work was to characterize the organic fraction decomposition process of the biosolids in soil, correlating to initial organic matter (OM) composition of residue. Another objective was quantify, under field conditions, the effect of alkaline biosolid on Oxisol OM, in a site planted with eucalyptus and after five years of the residue application
Publicado em: 2004
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34. Estudo da secagem de lodo de esgoto atraves da fritura de imersão
The increase in the population and in industrialization resulted in an increase in the volume of wastes. Part of these wastes is the wastewater and its treatment is a basic necessity of any society. Wastewater treatment generates large amounts of residues sewage sludge - that must be treated as well due to its dangerous nature and its large quantities. The o
Publicado em: 2003
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35. Analise do lodo de esgoto : seleção de metodos de recuperação de (oo) cistos de protozoarios patogenicos
The sewage sludge, a residue generated in significant amounts by waste water treatment plants, requires suitable disposal. There are some well known ways for disposal of sludge, for instance incineration or landfills, however the disposal procedure that more efficiently combines recycling of the organic matter and environmental suitability is the use of the
Publicado em: 1998
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36. Nitrogen and Phosphorus Removal from Combined Sewage Components by Microbial Activity1
When primary domestic sewage sludge was combined with settled sewage or secondary-treatment plant effluent, synergism resulted. The activity (measured by oxygen uptake, and the removal of Kjeldahl nitrogen and orthophosphate from solution) which resulted from incubating sludge together with settled sewage exceeded the sum of the activities when these compone