Factors Affecting UV/H2O2 Oxidation of 17α-Ethynyestradiol in Water

Qingsong Li, Naiyun Gao, Yang Deng, Xiaoyan Ma, Wenhai Chu

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In this study, bench-scale experiments were conducted to examine the UV/H2O2 oxidation of 17α-ethynyestradiol (EE2) in water in a batch operation mode. The EE2 degradation exhibited pseudo-first-order kinetics, and the removal was ascribed to the production of hydroxyl radicals (OH) by the UV/H2O2 system. Typically, the EE2 oxidation rate increased with increasing UV intensity and H2O2 dose, and with deceasing initial EE2 levels and solution pH. At EE20=650μg/L, UV intensity=154μW/cm2, H2O2=5mg/L, and neutral pH, the UV/H2O2 treatment was able to remove 90% of the EE2 content within 30min. Four anions commonly present in water were found to inhibit EE2 degradation to varying degrees: HCO3->SO42->Cl- >NO3-. Our results demonstrate that the described UV/H2O2 process is an effective method to control EE2 pollution in water.

Original languageEnglish
Pages (from-to)143-147
Number of pages5
JournalClean - Soil, Air, Water
Volume41
Issue number2
DOIs
StatePublished - 1 Feb 2013

Fingerprint

oxidation
Oxidation
Water
Degradation
degradation
Pollution control
hydroxyl radical
pollution control
Hydroxyl Radical
water
Anions
anion
Negative ions
kinetics
Kinetics
experiment
Experiments
dose
rate
method

Keywords

  • Drinking water
  • Endocrine disruptor
  • Estrogens
  • Ozonation
  • Pollution

Cite this

Li, Qingsong ; Gao, Naiyun ; Deng, Yang ; Ma, Xiaoyan ; Chu, Wenhai. / Factors Affecting UV/H2O2 Oxidation of 17α-Ethynyestradiol in Water. In: Clean - Soil, Air, Water. 2013 ; Vol. 41, No. 2. pp. 143-147.
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Factors Affecting UV/H2O2 Oxidation of 17α-Ethynyestradiol in Water. / Li, Qingsong; Gao, Naiyun; Deng, Yang; Ma, Xiaoyan; Chu, Wenhai.

In: Clean - Soil, Air, Water, Vol. 41, No. 2, 01.02.2013, p. 143-147.

Research output: Contribution to journalArticle

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