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Preparação e caracterização de efluentes sintéticos

Authors: Lourenço, João Gonçalo Viegas Rodrigues Pinto;

Preparação e caracterização de efluentes sintéticos

Abstract

Neste estudo preparou-se um efluente sintético de modo a simular efluentes tratados com possibilidade de serem reutilizados, por exemplo, na rega de campos de golfe, como acontece na região do Algarve. Durante a realização do trabalho procurou-se mostrar a possibilidade da preparação de um efluente usando água proveniente de um lago situado num jardim urbano, o que pode garantir a presença de substâncias húmicas, indicar a diferença de comportamento da água do lago e do efluente sintetizado, através da medição de vários parâmetros, procurar qual a influência que pode ter no comportamento dos efluentes o intervalo de tempo (até 3 meses) entre a sua preparação, ou recolha, e a realização das análises. Fez-se ainda uma breve discussão acerca da importância da validação dos métodos de ensaio. Dos resultados obtidos, observou-se uma homogeneidade do comportamento das amostras, com resultados bastante consistentes quanto à sua caracterização. Demonstrou-se a possibilidade de se prepararem efluentes sintéticos partindo de águas superficiais. O intervalo de tempo (3 meses) entre a preparação (ou recolha) e a realização dos ensaios não contribuiu para alterações significativas dos efluentes. Verificou-se ainda a importância do azoto no traçado das curvas de breakpoint.

In this study synthetic effluents which simulate treated wastewater, with the possibility of reuse, for example, in golf courses irrigation, in Algarve region, were prepared. Along this work it was intended to show the possibility of preparing an efluente using water from a lake located in an urban park, which may ensure the presence of humic substances, to indicate the difference of behaviour between the lake water and the synthetised effluent by the measurement of several parameters and finding out the influence of the time interval (3 months) between sampling, or effluent synthesis and experimental analyses. From the obtained results, homogeneity of behaviour of the samples was observed with fairly consistent results regarding its characterization. Also, the possibility of preparing synthetic effluents starting from surface waters was demonstrated. The time interval (3 months) between sampling, or effluent synthesis and experimental analyses did not contribute to significant changes of the efluente characteristics. Still, the important role of nitrogen on breakpoint curves shape was also observed.

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Portugal
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Keywords

Desinfeção, Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Química, Breakpoint, Cloro, Efluente Sintético

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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