2011
DOI: 10.1590/s1413-41522011000100009
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Detecção de emissão espontânea de luz em ensaios de colimetria aplicados ao monitoramento de efluentes sanitários

Abstract: No presente trabalho avaliou-se o potencial do emprego da técnica biofotônica ao monitoramento da qualidade microbiológica de efluentes sanitários, por meio da detecção de emissão ultrafraca de luz em testes envolvendo bactéria do grupo coliforme. Foram acompanhados os padrões de emissão de luz em câmara escura com o uso de efluente doméstico, antes e após tratamento, incubados em meio nutritivo à base de lactose e lauril triptose. O controle foi efetuado com o uso de cepa de Escherichia coli (ATCC 25.922), te… Show more

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Cited by 2 publications
(1 citation statement)
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“…The raw sewage generally presents counts of E. coli around 10 6 (MPN/100 ml), while treated sewage may have lower scores, with values ranging 10 4 -10 5 (MPN/100 ml) [1,26]. These results are close to those found by Silva et al [27], in a study of hospital wastewater in municipality of Natal (Rio Grande do Norte, Brazil), made for physical-chemical and microbiological characterization, which determined high levels of fecal coliform, characteristic of sewage in natura, with fecal coliforms in the order of 2.1 × 10 5 MPN/100 ml, reflecting contamination by fecal material that is disposed of without proper treatment, resulting in biological risks to the environment and population.…”
Section: Resultsmentioning
confidence: 99%
“…The raw sewage generally presents counts of E. coli around 10 6 (MPN/100 ml), while treated sewage may have lower scores, with values ranging 10 4 -10 5 (MPN/100 ml) [1,26]. These results are close to those found by Silva et al [27], in a study of hospital wastewater in municipality of Natal (Rio Grande do Norte, Brazil), made for physical-chemical and microbiological characterization, which determined high levels of fecal coliform, characteristic of sewage in natura, with fecal coliforms in the order of 2.1 × 10 5 MPN/100 ml, reflecting contamination by fecal material that is disposed of without proper treatment, resulting in biological risks to the environment and population.…”
Section: Resultsmentioning
confidence: 99%