Landfarming of Drilling Wastes

Use of the soil as a receptor in the biodegradation of oily wastes is a widespread practice in the petroleum industry. Generated during drilling, these oily wastes may have intrinsic properties that inhibit microbial soil activity. CENPES, the Petrobrás research centre, has been studying disposal of...

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Bibliographic Details
Published in:Water science and technology 1991-01, Vol.24 (12), p.177-182
Main Authors: Prantera, M T, Mauro, CA, Marins, MDM
Format: Article
Language:English
Subjects:
Barium
Biodegradation
Chemical analysis
Chloride
Drilling
Heavy metals
Metabolism
Metal concentrations
Metals
Microorganisms
Petroleum
Petroleum industry
Receptors
Salinity
Soil
Soil properties
Toxicity
Toxicity testing
Waste disposal
Wastes
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Summary:Use of the soil as a receptor in the biodegradation of oily wastes is a widespread practice in the petroleum industry. Generated during drilling, these oily wastes may have intrinsic properties that inhibit microbial soil activity. CENPES, the Petrobrás research centre, has been studying disposal of these wastes. The results of physical and chemical analyses were used to select factors that may limit the application of these wastes in soil. High salinity and high baritine (BaSO4) contents, as well as substantial concentrations of some heavy metals, have been studied with the aim of ascertaining the maximum concentration of each at which degradation is still observed. Microbiological assays indicated maximum oil application rates varying from 1 to 20%, suggesting that each waste tested displays a different toxicity.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.1991.0382