Synergistic Degradation of Chloramphenicol by an Ultrasound-Enhanced Fenton-like Sponge Iron System
State Key Laboratory of Bio-Based Material and Green Papermaking/Key Laboratory of Pulp & Paper Science and Technology of Education Ministry of China, Qilu University of Technology, Jinan 250353, China
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Academic Editor: Mehrab Mehrvar
Water 2021, 13(24), 3561; https://doi.org/10.3390/w13243561
Received: 6 November 2021
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Revised: 4 December 2021
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Accepted: 10 December 2021
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Published: 13 December 2021
(This article belongs to the Section Wastewater Treatment and Reuse)
In this study, an ultrasound Fenton-like sponge iron system was used to enhance the degradation efficiency for chloramphenicol (CAP). Three single-factor experiments of reaction pH, hydrogen peroxide (H2O2) concentration, and sponge iron (Fe) concentration were used to explore the impact on CAP degradation efficiency. The response surface method revealed the interactions between various factors. The degradation efficiency for CAP was as high as 99.97% at pH = 3, 3.19 mmol/L H2O2, and a sponge iron concentration of 2.26 g/L. The degradation rate for CAP was significantly reduced upon the addition of some inorganic salts, mainly due to the quenching of OH radicals. Gram-negative (G(−)) Escherichia coli and Gram-positive (G(+)) Staphylococcus aureus were used to evaluate the changes in the antibacterial activity of CAP. Finally, gas chromatography/mass spectrometry (GC-MS) was used to identify the degradation products and the degradation path for the products was proposed based on the detected products.
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Keywords:
ultrasound; Fenton-like; chloramphenicol; degradation efficiency
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MDPI and ACS Style
Meng, X.; Liu, Z.; Wang, S.; Kong, F. Synergistic Degradation of Chloramphenicol by an Ultrasound-Enhanced Fenton-like Sponge Iron System. Water 2021, 13, 3561. https://doi.org/10.3390/w13243561
AMA Style
Meng X, Liu Z, Wang S, Kong F. Synergistic Degradation of Chloramphenicol by an Ultrasound-Enhanced Fenton-like Sponge Iron System. Water. 2021; 13(24):3561. https://doi.org/10.3390/w13243561
Chicago/Turabian StyleMeng, Xia, Zhongming Liu, Shoujuan Wang, and Fangong Kong. 2021. "Synergistic Degradation of Chloramphenicol by an Ultrasound-Enhanced Fenton-like Sponge Iron System" Water 13, no. 24: 3561. https://doi.org/10.3390/w13243561
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