Nanofiltration

Textile industries represent an important environmental problem due to their high water consumption. In many Spanish regions with water scarcity, this fact can be an argument to make wastewater reuse necessary. In this work, a biologically treated wastewater from a cotton thread factory was subjecte

The textile wastewater treatment by membrane processes presents some limitations such as membrane fouling which causes a rapid flux decline. In fact, the membrane processes efficiency can be affected by membrane pore blocking or/and cake formation. In order to limit the effect of membrane fouling ca

This paper presents the feasibility of the application of two commercial nanofiltration (NF) membranes (Desal5 DK and NF-270) in the removal of metal ions from an acidic leachate solution generated from a contaminated soil using H2SO4 as a soil washing agent. The experimental results of soil washing

The Calembo Company (seafood conditioning, Sfax, Tunisia) uses 50 m3/d of drilling water per ton of fish to condition cuttlefish before freezing. The water used is characterised by its high degree of hardness, high sulphate concentration and salinity (67 g.l!1). Consequently, generated effluents con

Removal of hexavalent chromium (Cr+6) was carried out with different nanofiltration (NF) membranes for varying concentration and pH of the membrane feed solution. Two membranes were used for this investigation: one high rejection membrane (NFI) and the other a low rejection membrane (NFII). The perc

The possibility of complete fractionation of olive mill wastewater (OMW) was investigated using membrane technology. Combinations of different membrane processes were used for the fractionation of OMW into by-products that may be further developed to achieve reduction of the expenses involved. Ultra

The major ion partitioning effect may be due to steric, Donnan and dielectric exclusion which are collectively described by the Donnan steric pore model and dielectric exclusion (DSPM-DE). The effect of various ion size on charged solute rejection was studied using the DSPM-DE model. Sodium chloride

The retention of 8 acidic and 2 neutral pharmaceuticals in nanofiltration (NF) was investigated by a loose NF membrane and a tight NF membrane. The retention change due to the exposure to chlorine was studied. The retention of pharmaceuticals was affected by the electric repulsion effect in addition

Two different NF membranes were operated to remove natural organic matter (NOM) originating from Dongbok Lake in Korea. Coagulation/sedimentation and sand filtration treated waters as membrane feed waters were used. The tested NF membranes were autopsied to compare the fouling propensity from differ

With the recent emergence of endocrine disrupting compounds, pharmaceuticals, and personal care products (EDC/PPCPs) as an important potable drinking water and reclaimed wastewater quality issue, our study has investigated the removal of EDC/PPCPs of 27 compounds by nanofiltration (NF) and ultrafilt