Ultrafiltration

Access to a sufficient quantity of water of adequate quality for human consumption is a global problem. Nowadays, among the 1 billion people estimated to lack access to improved water sources and sanitation worldwide, rural populations are disproportionately underserved. As a consequence, sustainabl

There is limited information available to describe how the recycle ratios of the retentate and permeate streams can be used to counteract the effects of fluctuations in feed flowrate and composition on the flowrate and composition of the retentate stream from a whey ultrafiltration (UF) process. Bas

To control NOM fouling, either NOM or hardness ions can be (partly) removed before membrane filtration. In this work, anion Fluidized Ion Exchange (FIX) is used to remove NOM from untreated surface water and cation FIX is used to remove calcium and magnesium ions from untreated surface water. The ef

The production by enzymatic treatment of fish protein hydrolysates (FPH) is a promising route to add value to fisheries proteinic co-products (fish frames, heads etc.). Indeed, FPH possess good nutritional properties and biological activities for food and feed uses. Pressure-driven membrane separati

In order to determine the suitability of an ultrafiltration membrane module (OmexellTM SFP2660) to different feed waters, the filtrate quality and the operation status of the module were studied comparatively when it was fed with raw seawater, coagulated seawater and cooling tower blowdown (CTB) res

The potential of enhancing As(III) removal was investigated in a pilot study for the process of oxidation, precipitation and direct sand filtration as pretreatment before ultrafiltration. The pretreatment effectively facilitated As(III) removal and residual arsenic was below 10 µg/L for membrane eff

Membrane processes have been used as a key technology for water reclamation and reuse of secondary effluent discharged from municipal wastewater treatment plants. However, its extensive practices are limited due to membrane fouling. To control and manage the membrane fouling properly, pretreatment m

Membrane methods, including MF, UF and NF, belong to high-efficiency processes which can be competitive with traditional methods of water treatment. However, their efficiency can be affected by some parameters such as rejection and permeate flux. In this work, three membrane processes (MF, UF and NF

A mathematical model for the mass transfer in a parallel plate countercurrent dialysis system coupled with ultrafiltration operation was developed theoretically and experimentally in this study. The analytical solution was obtained using the Frobenius series method. The influences of retentate and d

The study shows the results of studies concerning the hydraulic permeability of ultrafiltration and hybrid in-line coagulation–UF (without sedimentation) systems during the treatment of water containing higher concentrations of organic matter. The calculation of UF permeability was made employing a