| This research investigated the feasibility of chemical oxidation enhanced bioremediation of petroleum hydrocarbon contaminated soils. Studies were performed on two types of soils, a soil contaminated with high concentrations of heavy motor oil and a soil contaminated with lower levels of diesel fuel. Both soils were decontaminated using bioremediation as a pretreatment step, chemical oxidation as an enhancement step, and reestablished bioremediation as a polishing treatment. Ozonation, peroxone, and Fenton's Reagent were tested for their capability in enhancing the biodegradation potential of petroleum hydrocarbon contamination.; The results of the study show that ozonation provides the best enhancement to bioremediation and peroxone process has the highest total TPH removal capability. Chemical priming was observed to be more advantageous for the soil contaminated with the heavy petroleum products over the lighter, more biodegradable diesel fuel. |
