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Article . 2012
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Avaliação da Toxicidade de Lixiviados de Aterro Sanitário em Sistema de Lagoas de Estabilização com Testes de Toxicidade Aguda (Daphnia magna)

Authors: Joel Dias da Silva; Rejane Helena Ribeiro da Costa; William Gerson Matias; Armando Borges de Castilhos Jr;

Avaliação da Toxicidade de Lixiviados de Aterro Sanitário em Sistema de Lagoas de Estabilização com Testes de Toxicidade Aguda (Daphnia magna)

Abstract

Lagoas de estabilização, em virtude dos seus reduzidos custos de implantação, manutenção e operação, tem se mostrado uma alternativa viável para o tratamento de lixiviados gerados em aterros sanitários. Desenvolveu-se um sistema experimental composto por três lagos de estabilização tratando efluente bruto, em funcionamento desde Março de 2005 até Maio de 2006. Avaliou-se o desempenho do sistema na atenuação do potencial poluidor considerando-se, em especial, fatores como a eficiência de remoção carbonácea e de nutrientes nas lagoas, quando submetidas às variações de cargas aplicadas; e o potencial do sistema em detoxificar o efluente tratado. Os resultados mostraram que o sistema de lagoas tratou satisfatoriamente os lixiviados, com eficiências de remoção de 77% para DQO Total; 94,3% para amônia. Na avaliação ecotoxicológica do lixiviado, utilizou-se o organismo-teste Daphnia magna Straus, os resultados mostraram-se positivos atingindo valores desejados de detoxificação do efluente.

Keywords

aterro sanitário, Environmental sciences, lixiviados, lagoas de estabilização, Environmental engineering, GE1-350, TA170-171, Environmental technology. Sanitary engineering, TD1-1066

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selected citations
These citations are derived from selected sources.
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).
BIP!Citations provided by BIP!
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.
BIP!Impulse provided by BIP!
1
Average
Average
Average
gold