| Registro completo |
| Provedor de dados: |
Rev. Microbiol.
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| País: |
Brazil
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| Título: |
Effect of aeration on biodegradation of petroleum waste
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| Autores: |
Ururahy,Adriana F. P.
Marins,Marcus D. M.
Vital,Ronalt L.
Gabardo,Irene Therezinha
Pereira Jr.,Nei
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| Data: |
1998-10-01
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| Ano: |
1998
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| Palavras-chave: |
Petroleum waste
Biodegradation
Aeration
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| Resumo: |
Large amounts of oily sludge are generated as residues by the oil industry, representing a real problem for refineries. This work studied the technical viability of treating oily sludge biologically, through stimulation of native microorganisms, at bench scale. Such microorganisms were able to grow in a medium containing oily sludge as the only carbon and energy sources. Two oily sludge concentrations were studied, 5% (v/v) and 10% (v/v), with a C:N ratio of 100:1. Higher microbial populations were observed in the first case. Substrate inhibition and/or toxic effect took place in the second case. The importance of aeration on the microbial activity and on the biodegradation of the residue was ascertained. In terms of n-paraffins, pristane and phytane consumption, maximum global efficiency of 76.9% (w/w) was achieved, in a medium containing 5% (v/v) of oily sludge. Bacteria of the genus Pseudomonas predominated. Two yeast species were also identified and two filamentous fungi were isolated.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141998000400004
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| Editor: |
Sociedade Brasileira de Microbiologia
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| Relação: |
10.1590/S0001-37141998000400004
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| Formato: |
text/html
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| Fonte: |
Revista de Microbiologia v.29 n.4 1998
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| Direitos: |
info:eu-repo/semantics/openAccess
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