Effect of Electrokinetic on Bioremediation of Disulfide Oil Contaminated Soil
The removal of disulfide oil (DSO) from contaminated soil was studied by the bioremediation method and the influence of electrokinetic on the bioremediation process was investigated. The bacillus subtilis strain was used in the bioremediation process. The effects of humidity, time and DSO concentration in soil was studied. The experimental results for the bioremediation of DSO show, the removal percent of DSO reach to 67% at 30oC and 26% humidity after six days. For the electrokinetic bioremediation (EK – bioremediation) experiments, the optimal current density was determined and several experiments at different times were performed. The concentration of DSO and the humidity was 20 L/ g. soil and 26% respectively. The DSO removal percent was reached to 61% after two days. The maximum DSO concentration in soil was 50 L/ g. soil. The comparison of the EK – bioremediation with the bioremediation method shows, the EK – bioremediation reduce the biodegradation time for DSO significantly.
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