Faculty of Civil Engineering, University of Zagreb, Kaciceva 6, Zagreb, Croatia.
Faculty of Chemical Engineering and Technology, University of Zagreb, Savska 16, Zagreb, Croatia.
Sci Rep. 2024 Apr 17;14(1):8836. doi: 10.1038/s41598-024-59568-5.
Imidacloprid is still a widely used neonicotinoid insecticide that is banned in many countries because of the associated environmental risks. Due to the inefficiency of conventional wastewater treatments for pesticide removal, new treatment methods are being investigated. Electrochemical methods, including electrocoagulation (EC), seem to be promising alternatives considering their effectiveness in removing various pollutants from wastewater. The aim of this study was to investigate the effects of electrode material, current density, ultrasound, and operation time on the efficiency of imidacloprid removal from a model solution by EC. The combination of aluminum electrodes and 20 A of applied current for 20 min resulted in total imidacloprid degradation. A simplified energy balance was introduced as a form of process evaluation. Combining ultrasound with EC resulted in 7% to 12% greater efficacy than using only EC.
吡虫啉仍然是一种广泛使用的新烟碱类杀虫剂，由于其存在相关的环境风险，已在许多国家被禁用。由于传统废水处理方法去除农药的效率不高，因此正在研究新的处理方法。电化学方法，包括电絮凝（EC），由于其在去除废水中各种污染物方面的有效性，似乎是很有前途的替代方法。本研究的目的是研究电极材料、电流密度、超声和操作时间对 EC 从模型溶液中去除吡虫啉效率的影响。结果表明，采用铝电极和 20 A 的电流 20 min 的组合可实现吡虫啉的完全降解。引入简化的能量平衡作为过程评估的一种形式。超声与 EC 结合使用比单独使用 EC 的效果提高了 7%至 12%。
