BIODEGRADATION OF EFFLUENT CONTAMINATED WITH DIESEL OIL AND GASOLINE USING CHITOSAN AS A NATURAL COAGULANT IN A CONTINUOUS PROCESS

BIODEGRADATION OF EFFLUENT CONTAMINATED WITH DIESEL OIL AND GASOLINE USING CHITOSAN AS A NATURAL COAGULANT IN A CONTINUOUS PROCESS

Abstract This study evaluated the effects of aeration (constant aeration, intermittent aeration and a lack of aeration) and hydraulic retention time (HRT) (2, 3 and 4 days) on a continuous process with cell recycling, using chitosan as a natural coagulant for the sedimentation of a C1 mixed culture....

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Main Authors: T. V. de Oliveira, S. L. Cardoso, R. B. Vieira, P. A. Vieira, V. L. Cardoso
Format: Article
Language:English
Published: Brazilian Society of Chemical Engineering
Series:Brazilian Journal of Chemical Engineering
Subjects:
Continuous process
Biodegradation
Chitosan
Mixed culture
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322016000400863&lng=en&tlng=en
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spelling doaj-90e50daa142f48bcabe3bcbf6e669de12020-11-24T22:46:04ZengBrazilian Society of Chemical EngineeringBrazilian Journal of Chemical Engineering1678-438333486386910.1590/0104-6632.20160334s20150193S0104-66322016000400863BIODEGRADATION OF EFFLUENT CONTAMINATED WITH DIESEL OIL AND GASOLINE USING CHITOSAN AS A NATURAL COAGULANT IN A CONTINUOUS PROCESST. V. de OliveiraS. L. CardosoR. B. VieiraP. A. VieiraV. L. CardosoAbstract This study evaluated the effects of aeration (constant aeration, intermittent aeration and a lack of aeration) and hydraulic retention time (HRT) (2, 3 and 4 days) on a continuous process with cell recycling, using chitosan as a natural coagulant for the sedimentation of a C1 mixed culture. This culture was used for the biodegradation of hydrocarbons present in the effluent contaminated with diesel oil and gasoline. The responses monitored included the turbidity removal (TR), total petroleum hydrocarbon (TPH) removal and volatile suspended solids (VSS). Constant aeration and an HRT of 4 days produced the best results for the continuous process, resulting in the highest TPH removals (94% and 75% reductions in the supernatant and reaction tank, respectively) and TR (95%).http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322016000400863&lng=en&tlng=enContinuous processBiodegradationChitosanMixed culture
collection DOAJ
language English
format Article
sources DOAJ
author T. V. de Oliveira
S. L. Cardoso
R. B. Vieira
P. A. Vieira
V. L. Cardoso
spellingShingle T. V. de Oliveira
S. L. Cardoso
R. B. Vieira
P. A. Vieira
V. L. Cardoso
BIODEGRADATION OF EFFLUENT CONTAMINATED WITH DIESEL OIL AND GASOLINE USING CHITOSAN AS A NATURAL COAGULANT IN A CONTINUOUS PROCESS
Brazilian Journal of Chemical Engineering
Continuous process
Biodegradation
Chitosan
Mixed culture
author_facet T. V. de Oliveira
S. L. Cardoso
R. B. Vieira
P. A. Vieira
V. L. Cardoso
author_sort T. V. de Oliveira
title BIODEGRADATION OF EFFLUENT CONTAMINATED WITH DIESEL OIL AND GASOLINE USING CHITOSAN AS A NATURAL COAGULANT IN A CONTINUOUS PROCESS
title_short BIODEGRADATION OF EFFLUENT CONTAMINATED WITH DIESEL OIL AND GASOLINE USING CHITOSAN AS A NATURAL COAGULANT IN A CONTINUOUS PROCESS
title_full BIODEGRADATION OF EFFLUENT CONTAMINATED WITH DIESEL OIL AND GASOLINE USING CHITOSAN AS A NATURAL COAGULANT IN A CONTINUOUS PROCESS
title_fullStr BIODEGRADATION OF EFFLUENT CONTAMINATED WITH DIESEL OIL AND GASOLINE USING CHITOSAN AS A NATURAL COAGULANT IN A CONTINUOUS PROCESS
title_full_unstemmed BIODEGRADATION OF EFFLUENT CONTAMINATED WITH DIESEL OIL AND GASOLINE USING CHITOSAN AS A NATURAL COAGULANT IN A CONTINUOUS PROCESS
title_sort biodegradation of effluent contaminated with diesel oil and gasoline using chitosan as a natural coagulant in a continuous process
publisher Brazilian Society of Chemical Engineering
series Brazilian Journal of Chemical Engineering
issn 1678-4383
description Abstract This study evaluated the effects of aeration (constant aeration, intermittent aeration and a lack of aeration) and hydraulic retention time (HRT) (2, 3 and 4 days) on a continuous process with cell recycling, using chitosan as a natural coagulant for the sedimentation of a C1 mixed culture. This culture was used for the biodegradation of hydrocarbons present in the effluent contaminated with diesel oil and gasoline. The responses monitored included the turbidity removal (TR), total petroleum hydrocarbon (TPH) removal and volatile suspended solids (VSS). Constant aeration and an HRT of 4 days produced the best results for the continuous process, resulting in the highest TPH removals (94% and 75% reductions in the supernatant and reaction tank, respectively) and TR (95%).
topic Continuous process
Biodegradation
Chitosan
Mixed culture
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322016000400863&lng=en&tlng=en
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