Zero-valent aluminum-mediated degradation of Bisphenol A in the presence of common oxidants

The use of a commercial, nano-scale zero-valent aluminum (ZVA) powder was explored for the treatment of aqueous Bisphenol A (BPA). The study focused on the (i) activation of hydrogen peroxide (HP) and persulfate (PS) oxidants with ZVA to accelerate BPA degradation, (ii) comparison of the treatment p...

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Bibliographic Details
Published in:Water science and technology 2017-11, Vol.76 (9-10), p.2455-2464
Main Authors: Arslan-Alaton, I, Olmez-Hanci, T, Dogan, M, Ozturk, T
Format: Article
Language:English
Subjects:
Aluminium
Aluminum
Bacteria
Bio-assays
Bioassays
Bisphenol A
Degradation
Freshwater
Hydrogen peroxide
Inland water environment
Nanoparticles
Organic carbon
Organic chemicals
Oxidants
Oxidation
Oxidizing agents
Phenols
Powder
Removal
Reuse
Scale (corrosion)
Studies
Surface water
Toxicity
Water treatment
Waterborne diseases
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Summary:The use of a commercial, nano-scale zero-valent aluminum (ZVA) powder was explored for the treatment of aqueous Bisphenol A (BPA). The study focused on the (i) activation of hydrogen peroxide (HP) and persulfate (PS) oxidants with ZVA to accelerate BPA degradation, (ii) comparison of the treatment performance in pure and real surface water (SW) samples, (iii) effects on toxicity and (iv) reuse potential of ZVA nanoparticles after ZVA/HP and ZVA/PS treatments. In pure water, ZVA coupled with HP or PS provided an effective means of BPA treatment particularly when PS was employed as the oxidant. On the other hand, in BPA-spiked SW, the ZVA/HP treatment combination outperformed ZVA/PS oxidation in terms of BPA removal, whereas ZVA/PS oxidation was superior in terms of organic carbon removal. According to the bioassays conducted in pure and real SW samples with the marine photobacteria Vibrio fischeri and the freshwater microalgae Pseudokirchneriella subcapitata, the toxicity response of BPA and its oxidation products was sensitive to the test organism and water matrix. The inhibitory effect of the reaction solution increased at the early stages of ZVA/PS treatment. The reuse potential of the ZVA/HP treatment system was higher than that of the ZVA/PS treatment system.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.2017.411