The relevance of bisphenol A adsorption during Fenton's oxidation

The aim of this research was to assess the efficiency of Fenton's oxidation for degradation of endocrine disruptor bisphenol A (BPA) with emphasis on extent of accompanying adsorption. Adsorption on the waste sludge resulting from the Fenton's oxidation could represent a significant impact...

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Bibliographic Details
Published in:International journal of environmental science and technology (Tehran) 2013-11, Vol.10 (6), p.1141-1148
Main Authors: Žgajnar Gotvajn, A, Bistan, M, Tišler, T, Englande, A. J, Zagorc-Končan, J
Format: Article
Language:English
Subjects:
Adsorption
Aquatic Pollution
Bisphenol A
Earth and Environmental Science
Ecotoxicology
Endocrine disrupters
Environment
Environmental Chemistry
Environmental Science and Engineering
Fenton's oxidation
Kinetic model
Original Paper
Oxidation
Soil Science & Conservation
Waste Water Technology
Water Management
Water Pollution Control
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Summary:The aim of this research was to assess the efficiency of Fenton's oxidation for degradation of endocrine disruptor bisphenol A (BPA) with emphasis on extent of accompanying adsorption. Adsorption on the waste sludge resulting from the Fenton's oxidation could represent a significant impact on the final removal efficiency of BPA. Fenton's oxidation was accomplished at two con- centrations of BPA (0.228 and 22.8 mg L-1); both at the selected molar ratio of reagents Fe2+:H2O2(1:10), as a function of reaction time. The kinetics of adsorption of BPA on waste sludge was determined for the same two concentrations of BPA at two concentrations of waste sludge (0.1 and 6.0 g L-1). In addition to changing concentrations of BPA and sludge, the adsorption process was also influenced by parameters such as temperature, pH and contact time. Adsorption isotherms were determined. Oxidation and adsorption were monitored by gas chroma- tography combined with mass spectrum. It has been con- firmed that BPA is not completely oxidized in Fenton's oxidation, because it is adsorbed to formed waste ferric sludge and thus necessary precautions for sludge deposition must be observed
ISSN:1735-1472
1735-2630
DOI:10.1007/s13762-012-0153-4