Nanoplastics – Effective Removal from Drinking Water by Sand Filtration Reported

The abstract of a Journal of Hazardous Materials article to be published August 15, 2022 by researchers with the Swiss Federal Institute of Aquatic Science and Technology, Italy Politecnico di Torino, Switzerland École Polytechnique Fédérale de Lausanne, and ETH Zurich reports that “… Microplastics detected in potable water sources and tap water have led to concerns about the efficacy of current drinking water treatment processes to remove these contaminants … We … used palladium (Pd)-labeled NPs to investigate the behavior and removal of NPs during conventional drinking water treatment processes including ozonation, sand and activated carbon filtration … NPs particles were most efficiently retained when aged (i.e. biofilm coated) sand was used … the removal of NPs during slow sand filtration dominated the overall NPs removal which is also supported by the laboratory-scale and pilot-scale data. The results from this study can be used to estimate the NPs removal efficiency of typical DWTPs with similar water treatment chains …” #NanoPlastic #MicroPlastic #PlasticWaste #SingleUsePlastic #DrinkingWater @Elsevier_Eng @EawagResearch