TY - JOUR
T1 - Feasibility study of bioremediation of a drilling-waste-polluted soil
T2 - Stimulation of microbial activities and hydrocarbon removal
AU - Rojas-Avelizapa, Norma
AU - Olvera-Barrera, Erika
AU - Fernández-Linares, Luis
N1 - Funding Information:
This study was supported by Grant D.00023 from Instituto Mexicano del Petróleo “Atenuación Natural de Sitios Contaminados.”
PY - 2005/12
Y1 - 2005/12
N2 - The objective of this study was to determine the feasibility of bioremediation as a treatment option for an aged and chronically polluted drilling waste soil located at the Southeast of Mexico. The polluted drilling-waste site with a mean total petroleum hydrocarbon concentration (TPHs) of 39,397 ± 858 mg/kg was treated with one dose of a nutrient-surfactant commercial product at 40 mg/kg soil and two doses of H2O2 (50 and 100 mg H2O2/kg soil). In this study, the parameters that were monitored include soil respiration, heterotrophic and hydrocarbon-degrading bacteria as biological indicators, catalase and dehydrogenase activities, and TPHs degradation as decontamination parameters. The results demonstrated that the microbial activities can be stimulated in a polluted drilling-waste site by the addition of H2O2 and commercial product, thereby resulting in increasing TPHs degradation. These aspects must be taken into account when biodegradation studies involve the application of a commercial product.
AB - The objective of this study was to determine the feasibility of bioremediation as a treatment option for an aged and chronically polluted drilling waste soil located at the Southeast of Mexico. The polluted drilling-waste site with a mean total petroleum hydrocarbon concentration (TPHs) of 39,397 ± 858 mg/kg was treated with one dose of a nutrient-surfactant commercial product at 40 mg/kg soil and two doses of H2O2 (50 and 100 mg H2O2/kg soil). In this study, the parameters that were monitored include soil respiration, heterotrophic and hydrocarbon-degrading bacteria as biological indicators, catalase and dehydrogenase activities, and TPHs degradation as decontamination parameters. The results demonstrated that the microbial activities can be stimulated in a polluted drilling-waste site by the addition of H2O2 and commercial product, thereby resulting in increasing TPHs degradation. These aspects must be taken into account when biodegradation studies involve the application of a commercial product.
KW - Catalase
KW - Dehydrogenase activity
KW - Drilling wastes
KW - Hydrogen peroxide
KW - Total petroleum hydrocarbons
UR - http://www.scopus.com/inward/record.url?scp=28844461671&partnerID=8YFLogxK
U2 - 10.1080/10934520500234692
DO - 10.1080/10934520500234692
M3 - Artículo
C2 - 16319017
SN - 1093-4529
VL - 40
SP - 2189
EP - 2201
JO - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
JF - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
IS - 12
ER -