Study on Pretreatment of Furfural Wastewater by Fenton Reagent

[Objective]The study was to discuss the pretreatment effect of furfural wastewater by Fenton reagent.[Method]The furfural wastewater was made for the Fenton oxidation pretreatment by domestic sewage,the optimum reaction condition was confirmed and the effects of pH,H2O2,Fe2+,reaction temperature and time on COD removal rate were researched.[Result]The reaction conditions for Fenton oxidation were as follows :the initial pH value was 3,the adding dosage of H2O2 was 2.5 ml and Fe2+ was 0.28 g,the reaction time was 60 min the reaction temperature was 40 ℃,COD removal rate reached abore 85%.With the increasing of pH and H2O2,COD removal rate firstly increased then decreased,with the increasing of reaction time and temperature removal rate fistly increased then stable.[Conclusion]The research provided the basis for pretreatment of furfural wastewater and opened up a new way for follow-up biochemical treatment of furfural wastewater.