Penicillium piscarium can be indicated as promising in the treatment of sites contaminated with uranium. Thus, this research aimed to analyze the P. piscarium dead biomass in uranium biosorption. This fungus was previously isolated from a highly contaminated uranium mine located in Brazil. Biosorption tests were carried out at pH 3.5 and 5.5 in solutions contaminated with concentrations of 1 to 100 mg/L of uranium nitrate. Our results showed that the dead biomass of P. piscarium was able to remove between 93.2 and 97.5% uranium from solutions at pH 3.5, at the end of the experiment, the pH of the solution increased to values above 5.6. Regarding the experiments carried out in solutions with pH 5.5, the dead biomass of the fungus was also able to remove between 38 and 92% uranium from the solution, at the end of the experiment, the pH of the solution increased to levels above 6.5. The analysis of electron microscopy, Energy‐dispersive spectroscopy, and X‐ray fluorescence demonstrated the high concentration of uranium precipitated on the surface of the fungal biomass. These results were impressive and demonstrate that the dead biomass of P. piscarium can be an important alternative to conventional processes for treating water contaminated with heavy metals, and we hope that these ecofriendly, inexpensive, and effective technologies be encouraged for the safe discharge of water from industrial activities.

中文翻译：

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使用 Penicillium piscarium 对受铀污染的水进行生物修复。

Penicillium piscarium可用于治疗受铀污染的部位。因此，本研究旨在分析铀生物吸附中的P. piscarium死生物量。这种真菌以前是从位于巴西的一个高度污染的铀矿中分离出来的。生物吸附测试是在 pH 3.5 和 5.5 下在被浓度为 1 至 100 毫克/升硝酸铀污染的溶液中进行的。我们的结果表明，P. piscarium的死亡生物量能够从 pH 3.5 的溶液中去除 93.2 至 97.5% 的铀，在实验结束时，溶液的 pH 值增加到 5.6 以上的值。关于在 pH 5.5 的溶液中进行的实验，真菌的死生物量也能够从溶液中去除 38% 到 92% 的铀，在实验结束时，溶液的 pH 值增加到 6.5 以上的水平。电子显微镜、能量色散光谱和 X 射线荧光分析表明，在真菌生物质表面沉淀出高浓度的铀。这些结果令人印象深刻，表明P. piscarium的死生物量 可以成为处理受重金属污染的水的传统工艺的重要替代方案，我们希望鼓励这些环保、廉价和有效的技术，以安全排放工业活动中的水。