Journal
CHEMOSPHERE
Volume 209, Issue -, Pages 901-907Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2018.06.125
Keywords
Non-thermal plasma; Advanced oxidation processes; Sulfonamides; Intermediates toxicity; Daphnia magna
Categories
Funding
- Korea Ministry of Environment as Advanced Technology Program, Ministry of Environment, Korea [1701000084]
- Technology Advancement Research Program - Ministry of Land, Infrastructure, and Transport of Korean government [18CTAP-C129744-02]
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Aeration-assisted non-thermal plasma (NTP) process is known as promising due to simultaneous generation of oxygen- and nitrogen-based reactive chemicals for non-biodegradable pollutants removal in a wastewater. Despite its effective oxidizing capability, the decomposition mechanism of antibiotics is not yet clarified well. This study verifies the NTP's removal potential of non-biodegradable sulfonamide antibiotics in the treatment of strong wastewater. The instantaneous production of hydrogen peroxide (H2O2) was quantified to prove synergistic advanced oxidation, and degradation kinetic coefficients of N, N-Dimethyl-4-nitrosoaniline (RNO) reveals rapid oxidation rate of NTP. Also, the results of an acute toxicity test using Daphnia magna demonstrate how the toxicity of antibiotics intermediates responds to the NIP. Results indicate that the NTP has better potential than conventional oxidation processes in terms of OH-radical generation due to the interplay of reactive species. This study provides useful information that aeration-assisted NTP application to wastewater treatment can be a viable option to enhance treatment efficiency via plasma-related reactive species and that how environmental ecotoxicity responds to the by-products of sulfonamide antibiotics. (c) 2018 Elsevier Ltd. All rights reserved.
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