Regeneration of activated carbon by Fenton reagent

Fenton reagent was used to regenerate activated carbon of adsorption phenol saturated,the influences of H2O2 and Fe2+ dosage,pH value,temperature,oscillation rate,reaction time and some other factors on the regeneration effect were studied,and the optimal regeneration condition was finally determined.The results of the test showed that,when the dosage of H2O2 and Fe2+ were 7.5 mL and 400 mg/L respectively,the pH value was 3,the temperature was 25 ℃,the oscillation rate was 300 r/min,the reaction time was 60 min,the removal rate of phenol of regenerated activated carbon reached 54.11%,the equilibrium adsorption capacity was 10.82 mg/L,the regeneration rate was 83.11%.The regenerated activated carbon had good adsorption capability,which could be used for treatment or pretreatment of wastewater containing high concentration phenol.