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Degradation of chlortetracycline hydrochloride by peroxymonosulfate activation on natural manganese sand through response surface methodology

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Abstract

This work studies the degradation of chlortetracycline hydrochloride (CTC) by activated peroxymonosulfate (PMS) with natural manganese sand (NMS). Meanwhile, the NMS was characterized and analyzed by isothermal nitrogen adsorption (BET), energy-dispersive X-ray spectroscopy (EDS) and scanning electron microscope (SEM). It can be induced that NMS material may contain C, O, Al, Si, Fe, Mn, and K, and the proportion of each is 6%, 9%, 13%, 34%, 27%, 5%, and 6%. Critical parameters, including initial pH value, catalyst dosage, and PMS amount, were optimized through response surface methodology. One of the essential significances of response surface methodology (RSM) is the establishment and optimization of the mathematical model to reduce the complexity of the experimental process. It can provide the degree of mutual influence between various factors and optimize the response based on the investigated factors. Results indicated that 81.65% of CTC could be degraded under the optimized conditions of PMS amount 2.02 g/L, the NMS dosage 0.29 g/L and pH 3.87. Also, it shows that NMS is the most powerful of each factor on the degradation efficiency. We proposed the degradation pathways of CTC from the liquid chromatograph–mass spectrometer (LC–MS) results. Therefore, NMS could be applied as an efficient activator of peroxymonosulfate to purify the water and wastewater.

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All authors approved that the data and material can be accessed from the corresponding author on reasonable request.

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Acknowledgements

This work was kindly funded by National Natural Science Foundation of China (51978319), Outstanding Youth Foundation of Gansu Province (20JR10RA651), Natural Science Foundation of Gansu Province (20JR5RA242 and 20JR10RA635), and National College Student Innovation and Entrepreneurship Training Program of Lanzhou University.

Funding

This research was supported by the by National Natural Science Foundation of China (51978319), Outstanding Youth Foundation of Gansu Province (20JR10RA651), Natural Science Foundation of Gansu Province (20JR5RA242 and 20JR10RA635), and National College Student Innovation and Entrepreneurship Training Program of Lanzhou University.

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Contributions

Bo He’s contribution focused on doing the experiment and writing the manuscript. Ying Yang and Bingrui Liu contributed to guiding and analyzed the data. Zixuan Zhao contributed to revising the manuscript. Xiuwen Cheng and Jiangwei Shang provided financial and technical support.

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Correspondence to Xiuwen Cheng.

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This manuscript is a manuscript and cannot be transferred to others It has not been published elsewhere. The work is not divided into many parts No falsified, falsified or inappropriate data manipulate. There is no plagiarism in this book.

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The authors declare no competing interests.

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Responsible Editor: Ricardo A. Torres-Palma

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He, B., Yang, Y., Liu, B. et al. Degradation of chlortetracycline hydrochloride by peroxymonosulfate activation on natural manganese sand through response surface methodology. Environ Sci Pollut Res 29, 82584–82599 (2022). https://doi.org/10.1007/s11356-022-21556-5

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  • DOI: https://doi.org/10.1007/s11356-022-21556-5

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