2015
DOI: 10.4136/ambi-agua.1611
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Avaliação da toxicidade da salinidade na nitrificação biológica de efluentes utilizando a técnica de respirometria

Abstract: RESUMOA nitrificação biológica em meio salino foi investigada em sistema contínuo, a partir de um efluente sintético contendo 152,44 mg L -1 de nitrogênio amoniacal total. Os testes com adição de concentrações crescentes de sal (100, 250, 500, 1.000, 2.000, 4.000, 8.000, 10.000 e 15.000 mg Cl -L -1 ) foram realizados em um biorreator em escala de laboratório de 5,7 L. Neste estudo, o objetivo foi avaliar a resposta da técnica de respirometria na identificação da toxicidade da biomassa nitrificante em diferente… Show more

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Cited by 3 publications
(2 citation statements)
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“…Costa and Campos [6] emphasizes that nitrification is a biological process, which occurs naturally in environments where there are aerobic conditions and the presence of ammoniacal nitrogen. In this way, the presence of ionic substances in the effluent directly affects the conductivity parameter, explaining the strong correlation between the two parameters.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Costa and Campos [6] emphasizes that nitrification is a biological process, which occurs naturally in environments where there are aerobic conditions and the presence of ammoniacal nitrogen. In this way, the presence of ionic substances in the effluent directly affects the conductivity parameter, explaining the strong correlation between the two parameters.…”
Section: Resultsmentioning
confidence: 99%
“…The rainwater flow carries organic and inorganic matter, in suspension or soluble, to the water bodies, increasing the organic load [2]. Costa and Campos [6], evaluation an urban stream waters using only physico-chemical parameters shows great variation regarding the analytical results due to the low concentrations of toxic substances that remain diluted in the water column. With the increased expansion of the industries, the interest in saline effluents is gaining visibility and several treatment techniques are being studied, however, there is still a difficulty in the removal of these pollutants, when at high concentrations, through biological treatment.…”
Section: Introductionmentioning
confidence: 99%