Extensive Evaluation of Aerated Accumulation Technique for Soil Treatment SPE 69445
Language: Inglés Series: Ercoli, Eduardo C ; Publication details: Dallas, Texas Society of Petroleum Engineers 2001Online resources: Summary: A pilot study of hydrocarbon biodegradation in soil using the aerated accumulation technique (AA), performed in the oil field Loma La Lata of Repsol-YPF SA in the province of Neuquén (Ercoli and others, IAPG, 2000) yielded satisfactory results. We considered the possibility of applying this biological technique on the treatment of big amounts of contaminated soil. The experimentation showed the possibility of reaching cleaning goals in comparative shorter periods of time, of about three months, starting from soils moderately contaminated with light hydrocarbons. Some important advantages in comparison with other biological techniques such as land-farming or biorestoration were additionally observed. The moisture of the soil was maintained during the treatment with no need of extra addition of water - cost to be considered in superficial treatments- and produced an important spontaneous increment of the temperature of the soil. These two characteristics of the process are particularly attractive for arid soils and cold regions, since these two factors, scarce humidity and low temperature, delay the global kinetic of biodegradation. On the base of the pilot experiment results, the application of the technique in larger scale on diverse kind of contaminated soils in oil field of Neuquén province was decided. Volumes of 20000 m 3 of lightly contaminated soil, 8000 m 3 of moderated contaminated soil and 22000 m 3 of highly contaminated soil, were treated. In all of the cases, an efficient reduction of the contaminants up to predetermined values was observed. The evaluation of these parameters let us conclude that an important number of cases of contaminated soils with hydrocarbons can be resolved in an efficient and economic form using this technique.| Current library | Status | Barcode | |
|---|---|---|---|
| Colección Digital IAPG | Not for loan | 200002971 |
A pilot study of hydrocarbon biodegradation in soil using the aerated accumulation technique (AA), performed in the oil field Loma La Lata of Repsol-YPF SA in the province of Neuquén (Ercoli and others, IAPG, 2000) yielded satisfactory results. We considered the possibility of applying this biological technique on the treatment of big amounts of contaminated soil. The experimentation showed the possibility of reaching cleaning goals in comparative shorter periods of time, of about three months, starting from soils moderately contaminated with light hydrocarbons. Some important advantages in comparison with other biological techniques such as land-farming or biorestoration were additionally observed. The moisture of the soil was maintained during the treatment with no need of extra addition of water - cost to be considered in superficial treatments- and produced an important spontaneous increment of the temperature of the soil. These two characteristics of the process are particularly attractive for arid soils and cold regions, since these two factors, scarce humidity and low temperature, delay the global kinetic of biodegradation. On the base of the pilot experiment results, the application of the technique in larger scale on diverse kind of contaminated soils in oil field of Neuquén province was decided. Volumes of 20000 m 3 of lightly contaminated soil, 8000 m 3 of moderated contaminated soil and 22000 m 3 of highly contaminated soil, were treated. In all of the cases, an efficient reduction of the contaminants up to predetermined values was observed. The evaluation of these parameters let us conclude that an important number of cases of contaminated soils with hydrocarbons can be resolved in an efficient and economic form using this technique.
