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<p>This study focuses on the removal of multiple antibiotics from aquaculture wastewater. It investigates the combined impact of adding the plant hormone diethyl aminoethyl hexanoate (DA-6) and multi-walled carbon nanotubes (MWCNTs) on the removal efficiencies of different microalgae-fungi-bacteria symbiotic systems (<i>Scenedesmus quadricauda</i>; <i>Scenedesmus quadricauda</i> + S395-2 + <i>Clonostachys rosea</i>; <i>Chlorella vulgaris</i>; <i>Chlorella vulgaris</i> + S395-2 + <i>Clonostachys rosea</i>). The optimal conditions for adding DA-6 and MWCNTs are also explored. Results show that under the optimal algae-fungi-bacteria symbiotic system (<i>Chlorella vulgaris</i> + S395-2 + <i>Clonostachys rosea</i>) with the optimal DA-6 concentration (10<sup>–7</sup>&#xa0;M) and MWCNTs content (2&#xa0;mg L<sup>−1</sup>), the average removal efficiencies of oxytetracycline hydrochloride, quinolone norfloxacin, and sulfadiazine reach 99.89 ± 0.08%, 93.34 ± 4.68%, and 95.24 ± 3.85%, respectively. This research provides a novel approach for developing algae-fungi-bacteria symbiotic technologies to treat antibiotic- contaminated aquaculture wastewater.</p>

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Optimizing the removal of antibiotics from aquaculture wastewater: the synergistic effect of plant hormone and multi-walled carbon nanotubes in microalgae-based systems

  • 期刊论文

  • 发表日期：

    2025年6月9日

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  • Bei Lu,
  • Chunzhi Zhao,
  • Xuehong Yuan,
  • Zhengfang Wang,
  • Yongjun Zhao,
  • Jing Zhang

摘要

This study focuses on the removal of multiple antibiotics from aquaculture wastewater. It investigates the combined impact of adding the plant hormone diethyl aminoethyl hexanoate (DA-6) and multi-walled carbon nanotubes (MWCNTs) on the removal efficiencies of different microalgae-fungi-bacteria symbiotic systems (Scenedesmus quadricauda; Scenedesmus quadricauda + S395-2 + Clonostachys rosea; Chlorella vulgaris; Chlorella vulgaris + S395-2 + Clonostachys rosea). The optimal conditions for adding DA-6 and MWCNTs are also explored. Results show that under the optimal algae-fungi-bacteria symbiotic system (Chlorella vulgaris + S395-2 + Clonostachys rosea) with the optimal DA-6 concentration (10–7 M) and MWCNTs content (2 mg L−1), the average removal efficiencies of oxytetracycline hydrochloride, quinolone norfloxacin, and sulfadiazine reach 99.89 ± 0.08%, 93.34 ± 4.68%, and 95.24 ± 3.85%, respectively. This research provides a novel approach for developing algae-fungi-bacteria symbiotic technologies to treat antibiotic- contaminated aquaculture wastewater.