Department of Chemistry, Research Line in Environmental and Materials Technology (ITAM), Pontificia Universidad Javeriana, Carrera 7 No. 43-82, Bogotá 110231, Colombia.
Department of Microbiology, School of Sciences, Microbiological Quality of Water and Sludge (CMAL), Pontificia Universidad Javeriana, Carrera 7 No. 43-82, Bogotá 110231, Colombia.
Int J Environ Res Public Health. 2023 Dec 13;20(24):7172. doi: 10.3390/ijerph20247172.
Antibiotics and pesticides, as well as various emerging contaminants that are present in surface waters, raise significant environmental concerns. Advanced oxidation processes, which are employed to eliminate these substances, have demonstrated remarkable effectiveness. However, during the degradation process, by-products that are not completely mineralized are generated, posing a substantial risk to aquatic ecosystem organisms; therefore, it is crucial to assess effluent ecotoxicity following treatment. This study aimed to assess the toxicity of effluents produced during the removal of amoxicillin and glyphosate with a Fenton-type process using a laminar structure catalyzed with iron (Fe) and copper (Cu). The evaluation included the use of , , and , and mutagenicity testing was performed using strains TA98 and TA100 of . Both treated and untreated effluents exhibited inhibitory effects on root growth in , even at low concentrations ranging from 1% to 10% /. Similarly, negative impacts on the growth of algal cells of were observed at concentrations as low as 0.025% /, particularly in cases involving amoxicillin-copper (Cu) and glyphosate with copper (Cu) and iron (Fe). Notably, in the case of , mortality was noticeable even at concentrations of 10% /. Additionally, the treatment of amoxicillin with double-layer hydroxides of Fe and Cu resulted in mutagenicity (IM ≥ 2.0), highlighting the necessity to treat the effluent further from the advanced oxidation process to reduce ecological risks.
抗生素和农药以及存在于地表水中的各种新兴污染物引起了重大的环境问题。高级氧化工艺被用来去除这些物质，已被证明具有显著的效果。然而，在降解过程中，会产生未完全矿化的副产物，对水生生态系统的生物构成重大风险；因此，在处理后评估流出物的生态毒性至关重要。本研究旨在评估使用铁 (Fe) 和铜 (Cu) 催化层流结构的芬顿型工艺去除阿莫西林和草甘膦过程中产生的废水的毒性。评估包括使用 、 、 和 ，并使用 TA98 和 TA100 进行致突变性测试。处理和未处理的废水均对 中的根生长表现出抑制作用，即使在低浓度范围从 1%到 10% /时也是如此。同样，在浓度低至 0.025% /时，观察到对 的藻类细胞生长产生负面影响，特别是在涉及阿莫西林-铜 (Cu) 和草甘膦-铜 (Cu) 和铁 (Fe) 的情况下。值得注意的是，在 的情况下，即使浓度为 10%，也会出现死亡率。此外，用 Fe 和 Cu 的双层氢氧化物处理阿莫西林会导致致突变性（IM ≥ 2.0），这强调了需要进一步处理来自高级氧化工艺的废水以降低生态风险。
