Title of article :
Microbial degradation of waste hydrocarbons in oily sludge from some Romanian oil fields
Author/Authors :
Lazar، نويسنده , , I. and Dobrota، نويسنده , , S. and Voicu، نويسنده , , Eduard A. and Stefanescu، نويسنده , , M. and Sandulescu، نويسنده , , L. and Petrisor، نويسنده , , I.G.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1999
Pages :
10
From page :
151
To page :
160
Abstract :
During oil production and processing activities, significant quantities of oily sludge are produced. The sludge represents not only an environmental pollution source but also occupies big spaces in storage tanks. Romania, an experienced European oil-producing and processing country, is faced with environmental problems generated by oily sludge accumulations. Many such accumulations are to be submitted to bioremediation processes based on the hydrocarbon degradation activity of naturally occurring, selectively isolated bacteria. In this paper the results concerning a laboratory screening of several natural bacterial consortia and laboratory tests to establish the performance in degradation of hydrocarbons contained in oily sludges from Otesti oil field area, are presented. As a result of the laboratory screening, we selected six natural bacterial consortia (BCSl-I1 to BCSl-I6) with high ability in degradation of hydrocarbons from paraffinic and non-paraffinic asphaltic oils (between 25.53%–64.30% for non-paraffinic asphaltic oil and between 50.25%–72.97% for paraffinic oil). The laboratory tests proved that microbial degradation of hydrocarbons contained in oily sludge from Otesti oil field area varied from 16.75% to 95.85% in moving conditions (Erlenmeyers of 750 ml on rotary shaker at 200 rpm) and from 16.85% to 51.85% in static conditions (Petri dishes Ø 10 cm or vessels of 500 ml).
Keywords :
Bioremediation of oily sludges , Microbial degradation of hydrocarbons , Environmental biotechnology , Petroleum microbiology
Journal title :
Journal of Petroleum Science and Engineering
Serial Year :
1999
Journal title :
Journal of Petroleum Science and Engineering
Record number :
2217736
Link To Document :
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