哈尔滨工业大学学报(英文版)
哈爾濱工業大學學報(英文版)
합이빈공업대학학보(영문판)
JOURNAL OF HARBIN INSTITUTE OF TECHNOLOGY(NEW SERIES)
2011年
5期
31-36
,共6页
张照韩%冯玉杰%王鲁%刘雨%任南琪
張照韓%馮玉傑%王魯%劉雨%任南琪
장조한%풍옥걸%왕로%류우%임남기
EE2%Anions%Coexisting organic compounds%UV/H2 O2 process%Photodegradation rate constant
The batch photodegradation reactor was used to investigate the influence of the common coexisting substances in wastewater,such as H +,anions(HCO3-,C1-and NO3-)and organic compounds(methanol and bisphenol A),on the photodegradation behaviors of EE2 in the UV/H2O2 process.The results indicated that the addition of coexisting substances can influence the photodegradation behaviors of EE2 and it also follows the first-order kinetics.The acidic(pH 2-4)and alkaline(pH 10-12)medium benefit the photodegradation of EE2,but the photodegradation rale constant of EE2 keeps almost constant in the pH value of 4-10.The addition of anions,such as HCO3-,Cl-and NO3-,can inhibit the photodegradation of EE2,and the rate constant has a negative linear relationship with the concentration of the anions.However,the reduction degrees vary with the anions kinds,and the inhibition effect of the three anions is in the order of HCO3-> NO3-> C1-.Addition of 5 mg/L methanol and bisphenol A can reduce the photodegradation rate constant of EE2by 84.31% and 72%,respectively.By comparison,the retardant effect of methanol is much more evident.In the studied concentrations range,the photodegradation rate constant of EE2 is the unary quadratic function of the organic compounds concentrations.