Zhai Mudi, Fu Bomin, Zhai Yuhui, Wang Weijie, Maroney Amy, Keller Arturo A, Wang Hongtao, Chovelon Jean-Marc
Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Siping Rd 1239, Shanghai 200092, China.
Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Siping Rd 1239, Shanghai 200092, China; Macao Environmental Research Institute, Macau University of Science and Technology, Macao 999078, China.
Water Res. 2023 Jun 1;236:119924. doi: 10.1016/j.watres.2023.119924. Epub 2023 Mar 28.
The coexistence of pharmaceuticals and heavy metals is regarded as a serious threat to aquatic environments. Adsorbents have been widely applied to the simultaneous removal of pharmaceuticals and metals from aqueous phase. Through a comprehensive review, behaviors that promote, inhibit, or have no effect on simultaneous adsorption of pharmaceuticals and heavy metals were found to depend on the system of contaminants and adsorbents and their environmental conditions, such as: characteristics of adsorbent and pollutant, temperature, pH, inorganic ions, and natural organic matter. Bridging and competition effects are the main reasons for promoting and inhibiting adsorption in coexisting systems, respectively. The promotion is more significant in neutral or alkaline conditions. After simultaneous adsorption, a solvent elution approach was most commonly used for regeneration of saturated adsorbents. To conclude, this work could help to sort out the theoretical knowledge in this field, and may provide new insights into the prevention and control of pharmaceuticals and heavy metals coexisting in wastewater.
药物与重金属的共存被视为对水生环境的严重威胁。吸附剂已被广泛应用于从水相中同时去除药物和金属。通过全面综述发现，促进、抑制或对药物和重金属同时吸附无影响的行为取决于污染物和吸附剂体系及其环境条件，如：吸附剂和污染物的特性、温度、pH值、无机离子和天然有机物。架桥效应和竞争效应分别是共存体系中促进和抑制吸附的主要原因。促进作用在中性或碱性条件下更为显著。同时吸附后，溶剂洗脱法是最常用于饱和吸附剂再生的方法。总之，这项工作有助于梳理该领域的理论知识，并可能为废水中药品和重金属共存的防治提供新的见解。
