Evaluación de la eficiencia de la remoción de hidrocarburos totales de lodos petrolizados empleando un procedimiento de oxidación química

Abstract

The present work aimed to evaluate the removal treatment procedure of TPHs concentrated in tank bottom sludge from petroleum extraction activities through the application of Fenton’s reagent. It was tested three different Fenton´s reagent concentrations: at 10% (T1), 20% (T2) y 30% (T3) (v/v) of Hydrogen peroxide (H2O2-Fe) and always keeping the same iron concentration ratio. The tests were done applying three consecutives Fenton´s reagent treatments in the same sample, given a total of 27 experiments. The analytical measurements were approached using TNRCC1005 method. The results indicated that the three procedures achieved 44,39%, 42,40% and 44,25% TPH removal in the corresponding T1, T2, and T3 treatments. Therefore, it was seen that the better results were obtained in T1 using Fenton´s reagent at 10% (v/v). The chromatographic analysis showed that the better removal efficiency was obtained in hydrocarbons with lower initial concentration, i.e. C6 to C11 and C21 to C30. For intermediate samples, i.e. C12 to C20, the best results were obtained applying Fenton´s reagent at 30%