Du-rae Lee

Per- and polyfluoroalkyl substances (PFASs) are a category of extremely persistent environmental pollutants. Metal-organic frameworks (MOFs) have appeared as promising adsorbents for PFAS removal due to their large surface area, tunable porosity, and versatile surface chemistry, which are among the numerous treatment technologies available. This review critically evaluates current developments in the design, fabrication, and application of MOF-based (nano)materials for the adsorption of PFAS in

Size exclusion chromatography (SEC) is a useful tool for understanding the apparent molecular weight (AMW) distribution of dissolved organic matter (DOM). However, the limitation that a single analytical column generally cannot resolve the entire AMW range of DOM from hundreds of daltons to hundreds of kilodaltons often oversimplifies the interpretation of the AMW distribution. This study applied the nonnegative matrix factorization to deconvolute SEC chromatograms and cross-validated deconvolut

The seasonal occurrence of algae blooms in surface waters remains a common problem, such as taste and odor (T&Os), the risk of disinfection by-products (DBPs), and disturbance to water treatment systems. The coagulation efficiency of plant-mineral composite (PMC) coagulant followed by UV-based advanced oxidation processes (UV-AOPs; UV/H2O2 and UV/Cl2) was evaluated for removal of algae, turbidity, dissolved organic matters, and taste and odor compounds in lab-scale and pilot-scale tests. In

This study showcases, from a technical and social perspective, the evolution of water pollution in Salvadoran rivers. As a novel contribution on this matter, the study also reveals the presence of emerging contaminants in the Lempa River and the Cerrón Grande Dam as well as in drinking water of a popular town in San Salvador, the Salvadoran capital city. All this information has been used to analyze the hydrosocial cycle and the way in which the lack of access to quality water affects the lives

This study shows that combined microfiltration–nanofiltration (MF–NF) treatment effectively removes contaminants from secondary wastewater effluent derived from a facultative lagoon system.