Aniline Degradation in Water and Soils by Potassium Persulfate

The degradation of aniline by potassium persulfate was investigated in aqueous solutions and soils. The influence factors such as the temperature, oxidant concentration and initial pH were explored. The results indicated that in aqueous solutions, under the conditions of reaction temperature of 40 ℃, potassium persulfate concentration of 103.0 mmol/L and pH range of 5-11, the optimal aniline degradation effect could be obtained with aniline degradation efficiency of 94.1%. The results showed that the removal of aniline could reach 98.9% at the condition of 40 ℃ with potassium persulfate concentration of 1.2 mol/L. Therefore potassium persulfate can be used to effectively degrade the aniline in water and soils, which provides a possible approach for the emergency management of aniline contaminant.