Electrochemical treatment of antibiotic wastewater containing ceftriaxone sodium by porous Ti/Magnéli Ti4O7 nanotube arrays

IF 4.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry Pub Date : 2023-12-02 DOI:10.1016/j.wri.2023.100235

Yonghao Zhang, Yating Song, Liu Liu, Jie Zhang, Zhaoyi Zhang, Qian Li, Jing Yang, Wen Li, Lulu Huang, Xue Li, Yulei Zhang, Qiangshun Wu, Xuejie Guo

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Abstract

In this study, porous Ti/Magnéli Ti₄O₇ nanotube arrays (NTA) was fabricated to pretreat antibiotic wastewater. Characterization of the Ti₄O₇-NTA illustrated that highly ordered NTA was successfully generated on the porous Ti substrate, which enlarged the specific surface area by 1.67 times. The Ti₄O₇-NTA has a high oxygen evolution potential (2.60 V) as well as low interfacial charge transfer resistance (4.479 Ω cm⁻²). Ceftriaxone sodium (CRO) was completely removed from raw antibiotic wastewater after 3 h of treatment by the Ti₄O₇-NTA, under optimal operation conditions. The biodegradability and toxicity of the wastewater were also significantly enhanced and reduced, as the BOD/COD and EC_50,48h values were increased to 0.48 and 57.62 % ± 2.16 %, respectively. The possible degradation pathway of CRO was proposed by LC‒MS. Cathodic polarization was proven to be an effective way to ensure the long-term durability of the Ti₄O₇-NTA.

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利用多孔钛/马涅利 Ti4O7 纳米管阵列对含有头孢曲松钠的抗生素废水进行电化学处理

本研究制作了多孔钛/马涅利 Ti4O7 纳米管阵列（NTA），用于抗生素废水的预处理。对 Ti4O7-NTA 的表征表明，在多孔 Ti 基质上成功生成了高度有序的 NTA，比表面积扩大了 1.67 倍。Ti4O7-NTA 具有较高的氧进化电位（2.60 V）和较低的界面电荷转移电阻（4.479 Ω cm-2）。在最佳操作条件下，Ti4O7-NTA 处理头孢曲松钠（CRO）3 小时后，可完全去除抗生素原废水中的头孢曲松钠。废水的生物降解性和毒性也显著提高和降低，BOD/COD 和 EC50,48h 值分别提高到 0.48 % 和 57.62 % ± 2.16 %。LC-MS 提出了 CRO 的可能降解途径。阴极极化被证明是确保 Ti4O7-NTA 长期耐久性的有效方法。

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来源期刊

Water Resources and Industry Social Sciences-Geography, Planning and Development

CiteScore

8.10

自引率

5.90%

发文量

审稿时长

75 days

期刊介绍： Water Resources and Industry moves research to innovation by focusing on the role industry plays in the exploitation, management and treatment of water resources. Different industries use radically different water resources in their production processes, while they produce, treat and dispose a wide variety of wastewater qualities. Depending on the geographical location of the facilities, the impact on the local resources will vary, pre-empting the applicability of one single approach. The aims and scope of the journal include: -Industrial water footprint assessment - an evaluation of tools and methodologies -What constitutes good corporate governance and policy and how to evaluate water-related risk -What constitutes good stakeholder collaboration and engagement -New technologies enabling companies to better manage water resources -Integration of water and energy and of water treatment and production processes in industry