Membrane filtration

Water scarcity is a major problem in many developing countries. Depending on precipitation intensity rainwater constitutes a potential source of drinking water. In addition, its proper management could reduce water and food crisis in some of these regions. Rainwater harvesting (RWH) is a technology

Concentrate of nanofiltration and reverse osmosis installations is an increasing problem, especially for inland membrane installations. Introduction of membrane filtration in The Netherlands is severely hindered by the concentrate problem. Two approaches are viable for solving or reducing the concen

The treatment of wastewater containing suspended solids (SS) is an important topic related to strict environmental regulation and wastewater reuse in the preparation of carclazyte catalyst. This study indicated that the addition of an inorganic flocculant, anhydrous aluminum sulphate (AAS), to waste

Membrane-based virus filtration is used in biotechnological processes due to advantages such as easy scaleup but is currently lacking standardized validation protocols. Thus, ultrafiltration (UF) of a rod-shaped virus was assessed to contribute to the body of knowledge regarding the characterization

A pre-industrial scale experimentation aimed at the demonstration of a system for purification and reuse of wastewater from an industrial laundry was carried out by means of a prototype plant installed in situ, fed with 15 m3/h of untreated wastewater. The tested treatment system consisted of: (i) p

In this study, the appropriate cell type for periodic boundary conditions (PBC) in CFD analysis for spacerfilled membrane module design was validated by comparing the simulated values of pressure drop with that obtained by experiments. The pressure drop through spacer-filled channel depends on the g

This work carries out experiments with BSA (Bovine serum albumin)/yeast mixtures by a flat-channel filter imposed with an electric field to investigate effects of electric field strength and electric field modes on filtration rate and protein transmission. The pseudo-steady-state filtration rate mea

The paper is an overview of the application of membrane processes to winemaking. The aim is to present both the application of membrane processes in winemaking and a general philosophy of their development from a process engineering point of view. Several examples illustrate this approach, in partic

Based on the hypothesis that ionic liquids should show a similar behaviour as surfactants in membrane filtration, this research work analyses the potential of aggregation control to improve the performance of downstream membrane separations, applied to the system 3-octyl-1-methylimidazolium chloride

Two natural source waters containing natural organic matter (NOM) with different physical and chemical characteristics were dead-end filtered using five types of membranes having different material and geometric properties. In this study retained dissolved organic carbon (DOC) per unit membrane area