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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:ZHANG Zhao-han,FENG Yu-jie,Wang Lu,Liu Yu,RengNan Qi.Influence of coexisting substances on the photodegradation behaviors of 17α-ethinylestradiol (EE2) in the UV/H2O2 process[J].Journal of Harbin Institute Of Technology(New Series),2011,18(5):31-36.DOI:10.11916/j.issn.1005-9113.2011.05.006.
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Influence of coexisting substances on the photodegradation behaviors of 17α-ethinylestradiol (EE2) in the UV/H2O2 process
Author NameAffiliation
ZHANG Zhao-han State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090,China 
FENG Yu-jie State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090,China 
Wang Lu State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090,China 
Liu Yu State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090,China 
RengNan Qi State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090,China 
Abstract:
The batch photodegradation reactor was used to investigate the influence of the common coexisting substances in wastewater,such as H+,anions (HCO3-,Cl-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 rate 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->Cl-.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.
Key words:  EE2  Anions  Coexisting organic compounds  UV/H2O2 process  Photodegradation rate constant
DOI:10.11916/j.issn.1005-9113.2011.05.006
Clc Number:X52
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