Experimental Study on Treatment of Wastewater Containing Highly Concentrated Phenol with UV/Fenton Reagent

The paper studied the impact of various factors of UV/Fenton reagent on the degradation of wastewater containing highly concentrated phenol and determined the best technological conditions of water treatment.Keeping the basic reaction conditions of the UV/Fenton system constant,we investigated the influence of these factors on the effect of the treatment of wastewater containing highly concentrated phenol by changing the experimental conditions such as pH value,concentration of H2O2,concentration of Fe2+and reaction time,etc.The experiment results show that the UV/Fenton reagent has a better removal effect and a higher reaction rate than the traditional methods.The removal rate of phenol is over 90% with the following conditions: initial phenol concentration of wastewater is 1 000 mg/L,UV wavelength is 253.7 nm,reaction time is 25-40 min,pH value is 6-7,the concentration of H2O2 and Fe2+ are 40-50 mmol/L and 28-30 mg/L respectively,satisfying the requirements of follow-up biodegradation.