Synergistic Ti–Sn–Co-loaded columnar activated carbon particle electrodes for efficient treatment of simulated space bathing wastewater

IF 2.8 4区生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Journal of chemical technology and biotechnology Pub Date : 2025-03-13 DOI:10.1002/jctb.7844

Wei Wang, Jiaqi Wang, Linghao Sun, Peipei Li, Fanfu Zeng, Baiyu Xu

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引用次数: 0

Abstract

BACKGROUND

The recycling and treatment of water resources in space have become an urgent problem. While electrochemical advanced oxidation processes show good promise for the effective treatment of space bathing wastewater, traditional two-dimensional electrode reactors (2DERs) have various drawbacks, including mass transfer limitations and the short life of the electrode plate. Therefore, in this study, a 2DER was filled with Ti–Sn–Co-loaded columnar activated carbon (CAC) to prepare a three-dimensional electrode reactor (3DER) for the treatment of simulated space bathing wastewater.

RESULTS

Independent experiments were conducted using response surface methodology and Box–Behnken design to optimize four variables in the 3DER for wastewater treatment, and data optimization was carried out using regression analysis. Under the optimal conditions (granular electrode filling of 30.2 g L⁻¹, current density of 19.4 mA cm⁻² and aeration rate of 1.4 L min⁻¹), the average energy consumption was 124.26 kWh kg⁻¹ and the chemical oxygen demand (COD) degradation rate was 60.43%.

CONCLUSION

In the treatment of simulated space bathing wastewater, the 3DER filled with Ti–Sn–Co/CAC achieved a much higher COD degradation rate than the other column electrodes prepared in this work. This COD degradation rate was 24 times higher than that of a traditional 2DER, and the average energy consumption of the 3DER was about 85% lower than that of the 2DER. Due to its high efficiency and low energy consumption, the Ti–Sn–Co/CAC-filled 3DER has excellent potential for use in the treatment of space bathing wastewater. © 2025 Society of Chemical Industry (SCI).

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协同负载钛锡共负载柱状活性炭颗粒电极高效处理模拟太空洗浴废水

空间水资源的回收与处理已成为一个亟待解决的问题。虽然电化学高级氧化工艺在有效处理太空浴废水方面表现出良好的前景，但传统的二维电极反应器（2DERs）存在传质限制和极板寿命短等诸多缺点。因此，本研究在2DER中填充负载ti - sn - co的柱状活性炭（CAC），制备三维电极反应器（3DER），用于模拟太空洗浴废水的处理。结果采用响应面法和Box-Behnken设计进行独立实验，优化废水处理3DER的4个变量，并采用回归分析进行数据优化。在颗粒电极填充量为30.2 g L−1、电流密度为19.4 mA cm−2、曝气速率为1.4 L min−1的最佳条件下，平均能耗为124.26 kWh kg−1，化学需氧量（COD）降解率为60.43%。结论在模拟空间洗浴废水处理中，Ti-Sn-Co /CAC填充的3DER比其他柱电极的COD降解率高得多。其COD降解率是传统2DER的24倍，平均能耗比传统2DER低85%左右。Ti-Sn-Co / ca填充的3DER具有高效、低能耗的特点，在空间洗浴废水处理中具有良好的应用前景。©2025化学工业学会（SCI）。

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来源期刊

Journal of chemical technology and biotechnology 工程技术-工程：化工

CiteScore

7.00

自引率

5.90%

发文量

268

审稿时长

1.7 months

期刊介绍： Journal of Chemical Technology and Biotechnology(JCTB) is an international, inter-disciplinary peer-reviewed journal concerned with the application of scientific discoveries and advancements in chemical and biological technology that aim towards economically and environmentally sustainable industrial processes.