Fletcher Shaun, Yusuf Lukman A, Ertekin Zeliha, Symes Mark D
School of Chemistry, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
School of Chemistry, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
Ultrason Sonochem. 2025 Jul 30;120:107488. doi: 10.1016/j.ultsonch.2025.107488.
The persistence of bisphenol A in the environment poses significant ecological hazards. Traditional treatment methods often fall short in removing micropollutants such as bisphenol A from wastewater. The use of ultrasound in water treatment has the potential to induce powerful oxidative degradation of micropollutants while dispensing with the need for chemical intervention. Herein, we show a novel approach for the sonochemical degradation of bisphenol A using dual frequency ultrasound. The synergistic effects of using two distinct ultrasonic frequencies (20 kHz, with the addition of either 37 kHz or 80 kHz) were investigated in the context of bisphenol A removal. The method was shown to substantially increase the rate of degradation compared to single frequency treatment, achieving a 94% removal of bisphenol A under optimised conditions. The high extent of chemical oxygen demand removal and the absence of a requirement for chemical additives demonstrates the promise of this method as a green alternative for water treatment.
双酚A在环境中的持久性带来了重大的生态危害。传统处理方法在从废水中去除双酚A等微污染物方面往往效果不佳。在水处理中使用超声波有潜力引发微污染物的强力氧化降解，同时无需化学干预。在此，我们展示了一种使用双频超声对双酚A进行声化学降解的新方法。在双酚A去除的背景下，研究了使用两种不同超声频率（20kHz，添加37kHz或80kHz）的协同效应。结果表明，与单频处理相比，该方法显著提高了降解速率，在优化条件下实现了94%的双酚A去除率。高化学需氧量去除率以及无需化学添加剂表明了该方法作为一种绿色水处理替代方法的前景。
