The widespread occurrence of endocrine disrupting chemicals (EDCs), such as steroid hormones, in secondary wastewater effluents has become a major concern in the water recycling practice. This paper investigates the risk of steroid hormone breakthrough during nanofiltration membrane filtration in water recycling applications. The results indicate a dynamic equilibrium between adsorption and des...

A mechanistic model was derived for direct flow microfiltration (MF), one which lends more insight into the factors that control MF performance compared to a statistical curve-fitting procedure that is often used to estimate chemical cleaning intervals at pilot-scale. This theoretical approach to MF fouling was based on fundamental feed water, membrane, and cake characteristics and was shown to...

Low-pressure membranes (including microfiltration and ultrafiltration) for natural organic matter removal in drinking water treatment have gained increasing interest the Nordic countries. Microfiltration can produce stable quality requires less space than conventional treatment. Hollow fibre coupled with chemical coagulation was tested at a Finnish surface plant to study its feasibility environ...

The presence of heavy metal ions in polluted wastewater represents a serious threat to human health, making proper disposal extremely important. utilization nanofiltration (NF) membranes has emerged as one the most effective methods ion removal from due their efficient operation, adaptable design, and affordability. NF created advanced materials are becoming increasingly popular ability depollu...

BACKGROUND Cleaning of environmental surfaces in hospitals is important for the control of methicillin-resistant Staphylococcus aureus (MRSA) and other hospital-acquired infections transmitted by the contact route. Guidance regarding the best approaches for cleaning, however, is limited. METHODS In this study, a mathematical model based on ordinary differential equations was constructed to st...

We demonstrate the fabrication of 2-D arrays of nanopillars made from perfluoropolyether derivatives using a porous anodic aluminum oxide membrane as a template. Pretexturing the aluminum prior to anodization enables one to engineer multiple morphological length scales and thereby synthesize a lotus-leaf-like topography. Both nanopillars on a flat surface and on a lotus-leaf-like topology exhib...

Abstract Our previously reported exploration (Journal of Membrane Science 565 (2018) 241–253) on the differences between fouling in reverse osmosis (RO) and forward (FO), used alginate as a foulant with initial conditions that ensured starting fluxes were same. That study found for cellulose triacetate (CTA) membrane extent fouling, based analysis resistance, was greater when part FO system. He...

Abstract The present work investigated the impact of ultrafiltration (UF) and nanofiltration (NF) membranes on recovery fractionation polyphenolic compounds polysaccharides from Sangiovese Cabernet Sauvignon wine lees. A laboratory-made flat-sheet membrane in cellulose acetate (CA400-38) was used UF treatment lees; three (CA316, CA316-70, CA400-22) a polyamide commercial (NF90) were NF All char...

The potential of hydrogen as a future energy carrier is only fully unleashed if fuel processors generating hydrogen of a suitable purity can be engineered. Selective methanation of CO can be used as a first step for cleaning up feed gas for e.g. proton exchange membrane (PEM) fuel cells [1] where CO poisons the platinum electrodes and for removing oxygen containing compounds in hydrogen feeds u...