Abstract

With the rapid increase in pharmaceutical wastewater treatment for diverse applications and to contribute to the understanding of suitability of nanoparticles (NPs) in pharmaceutical effluent treatment, this study was conceptualized. Here, we profiled the concentration of selected heavy metals (Cd, Cr, Pb, Cu and Ni) in pharmaceutical effluent samples over three sampling periods using atomic absorption spectroscopy and evaluated the effectiveness of B. sapida synthesized copper nanoparticles (Cu NPs) in pharmaceutical effluent treatment. The results showed that there was no significant (p > 0.05) difference in the heavy metals concentration of the pharmaceutical effluents across the three sampling periods. This observation could be attributed to the low environmental concentration of the metals that prevented significant leaching into the company’s water source through rainfall or the highly effective water treatment pathways that successfully reduced the metals concentration. Despite the observed increase in Cu ions in the treated samples due to the synthesized NPs, its concentration still conforms to the internationally accepted admissible limit in drinkable water. Studies seeking to understand the suitability and toxicological implications of use of the NP-treated effluents are highly encouraged and efforts are underway in this direction.

摘要

随着制药废水处理在各种应用中的迅速增加，并有助于理解纳米颗粒（NPs）在制药废水处理中的适用性，本研究被概念化。在这里，我们使用原子吸收光谱分析了三个采样周期中制药废水中选定的重金属（Cd，Cr，Pb，Cu和Ni）的浓度，并评估了B. sapida合成铜纳米颗粒（Cu NPs）在制药中的有效性。污水处理。结果表明，没有显着性（p > 0.05）在三个采样期间内的制药废水中重金属浓度的差异。该观察结果可归因于金属的低环境浓度，从而阻止了通过降雨或有效降低金属浓度的高效水处理途径大量浸入公司的水源。尽管观察到由于合成的NP导致处理后的样品中的铜离子增加，但其浓度仍符合国际公认的饮用水中允许的限值。强烈鼓励进行研究以了解使用经NP处理的废水的适用性和毒理学意义，并且正在朝这个方向努力。