Effect aeration on biodegradation of petroleum waste
Rev. microbiol
;
29(4): 254-8, out.-dez. 1998. tab, graf
Article
in English
| LILACS
| ID: lil-251732
RESUMO
Large amaounts 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 aludge 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 source. Two oily sludge concentrations were studied, 5(per cent) (v/v) and 10 (per cent) (v/v), with a CN ratio of 1001. 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 the genus "Pseudomonas sp." predominated. Two yeast species were also identified and two filamentous fungi were isolated.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Bacteria
/
Petroleum
/
Aeration
/
Water Purification
/
Fungi
Language:
English
Journal:
Rev. microbiol
Journal subject:
Microbiology
Year:
1998
Type:
Article
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