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Revista de Ciências Exatas e Naturais
Article . 2012 . Peer-reviewed
Data sources: Crossref
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Revista de Ciências Exatas e Naturais
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Biorremediação de um Solo Argiloso Contaminado com uma Mistura de Diesel e Biodiesel Através da Bioventilação

Authors: Cleomar Reginatto; Antônio Thomé; Luciane Maria Colla; Liliane Ribeiro R. Meneghetti; Iziquiel Cecchin;

Biorremediação de um Solo Argiloso Contaminado com uma Mistura de Diesel e Biodiesel Através da Bioventilação

Abstract

O crescente consumo de combustiveis fosseis gera a necessidade de buscar fontes alternativas ambientalmente mais adequadas, como e o caso do biodiesel, em misturas com o diesel. Porem essa mistura torna-se um provavel contaminante ambiental. A bioventilacao e uma tecnica de biorremediacao que envolve apenas a insercao de ar no meio, para estimular a atividade aerobia dos microrganismos e surge como uma alternativa aos metodos convencionais de remediacao. O objetivo deste trabalho foi avaliar a biorremediacao ex situ de um solo argiloso contaminado com uma mistura B20 utilizando a bioventilacao. Os ensaios foram realizados em biorreatores de PVC, e 4% de contaminante, em relacao a massa de solo seco. Foram testadas tres vazoes de ar (2, 4 e 6 L/min), em tres intervalos de tempo distintos (1h a cada 24h, 36h e 48h), alem do controle. A degradacao do contaminante foi avaliada atraves da determinacao da fracao residual, extraido por ultrassom, em 3 tempos (15, 30 e 60 d). A maior degradacao aos 60 dias, foi obtida para a velocidade de ar de 6 L/min aplicado diariamente, com 86% de degradacao, demonstrando-se ser a bioventilacao uma tecnica de biorremediacao promissora para o tratamento de solos argilosos contaminados com mistura B20.

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    popularity
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    influence
    This indicator 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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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!
2
Average
Average
Average
gold