Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 278, Issue -, Pages 330-335Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2014.06.021
Keywords
Hydrogen peroxide; Persulfate; Peroxymonosulfate; Quenching agents; Battery toxicity test
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Funding
- Scientific and Technological Research Council of Turkey (TUBITAK) [111Y257]
- Istanbul Technical University Scientific Research Project Foundation [37129]
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The inhibitory effect of commonly known oxidants and their quenching agents was investigated by employing a battery of toxicity tests. Hydrogen peroxide toxicity could be effectively eliminated by the enzyme catalase, whereas sodium thiosulfate and ascorbic acid were recommended as suitable quenching agents for the removal of the oxidants persulfate and peroxymonosulfate in the Vibrio fischeri bioassays. None of the studied quenching agents was found to be suitable for persulfate and peroxymonosulfate in the Daphnia magna bioassays since high inhibitory effects were obtained for both oxidants. In the case of Pseudokirchneriella subcapitata, manganese dioxide powder should be used as an alternative quenching agent to catalase, since this enzyme exhibited a highly toxic effect towards these microalgae. Sodium sulfite, which is extensively used as a quenching agent, was not appropriate for quenching peroxymonosulfate in all studied bioassays. (C) 2014 Elsevier B.V. All rights reserved.
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