In a recent study, researchers have addressed the pressing issue of N-nitrosamines formation in raw water during disinfection processes, which poses significant health risks to consumers. The team developed layered double oxide-biochar sphere nanocomposites (LDO/BSs) as a solution to mitigate the formation of these harmful compounds.

Through complexation between nitrogenous pollutants and the nanocomposites, the adsorption capacity of various aliphatic secondary amines was notably increased in water. Moreover, the LDO/BSs demonstrated efficacy in reducing potential N-nitrosamine precursors, including organic nitrogen and fluoresceous-dissolved organic matter, in source waters from multiple treatment plants.

As a result, the formation potential of N-nitrosodimethylamine was significantly lowered, showcasing promise for maintaining water safety standards. The study highlights the potential of LDO/BSs as a novel approach to control disinfection byproducts, offering a means to safeguard human health and the environment.

Furthermore, the material’s regeneration through peroxymonosulfate activation underscores its sustainability and practicality in water treatment applications. This dual functionality not only addresses current water treatment challenges but also aligns with efforts towards environmentally friendly practices in water management.