Chemical-biological stabilization process for repairing...

Details Chemical-biological stabilization process for repairing... Chemical-biological stabilization process for repairing...

2005-02-24

2008-08-19

Kreck, John (Department: 3672)

Hydraulic and earth engineering

Soil remediation

Reexamination Certificate

active

07413383

ABSTRACT:
The present invention describes a process utilized for the remediation of soils and petroleum drilling wastes contaminated with hydrocarbons, which consists in stabilization by application and mixing in specific proportions of calcium oxides and organic conditioners. It is possible to treat materials with concentrations of at least seven percent (dry weight) of hydrocarbons petroleum hydrocarbons (TPH) and reduce the concentration to 1-1.5% TPH. Furthermore, residual toxicity is completely eliminated in the treated material, vegetative growth is stimulated, the treated material does not present significant concentrations of hydrocarbons leachates and it passes all criteria to be considered not a dangerous waste (CRETI or TCLP).

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Adams, Randy H., “Chemical-biological stabilisation of hydrocarbon-contaminated soil and drilling cutting in tropical Mexico”, Land Contamination & Reclatmation, vol. 12 (2004) pp. 349-361.

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