Fouling

A semi-empirical crossflow ultrafiltration (UF) model that can predict permeate flux as a function of time for different operating conditions was considered. Model predictions were analysed and compared with the experimental results obtained in a crossflow UF plant under different operating conditio

Production of soy protein concentrates (SPC)/isolates (SPI) by traditional acidic precipitation, ultrafiltration, electro-acidification and a novel approach combining electro-acidification and ultrafiltration is reviewed. In the context of the development of a combined electro-acidification ultrafil

Interactions between dissolved organic substances (dissolved organic matter and two model substances), ions (Na+ and Ca2+) and the membrane surface were investigated using a submerged membrane module. The membrane permeability, the fouling formation and the rejection were significantly influenced by

This study was conducted to understand fouling formation and effect of PAC addition in a hollow-fiber ultrafiltration membrane integrated with adsorption. Daily carbon accumulation rate and carbon mass load to UF module were estimated to be about 10 mg/L and 117 g/m2·d, respectively, however carbon

This paper investigates a methodology for the characterisation and location of a thin layer of irreversible fouling in a spiral-wound ultrafiltration membrane by using several physico-chemical techniques as SEM-EDX, SEMFEG, FTIR-ATR and AFM. Application to analysis of a spiral-wound PES membrane for

The objective of this paper is to characterise and locate the thin layer of irreversible fouling in a spiral-wound membrane of ultrafiltration of acid whey, after 8000 h of production in a French dairy. Several physico-chemical techniques as SEM-EDX, SEM-FEG, FTIR-ATR and AFM were used. Fouling was

The treatment of effluents from the regeneration of cation exchanger by the membrane distillation (MD) process has been investigated. The composition of these effluents is complex due to the content of residual acid (1–50 g HCl/dm3) and different amounts of various salts (ranging in concentration fr

M odified and unmodified membrane samples w ere taken from different pilot-scale membrane plants after a sufficient operation period. One of t he plants is installed at a municipal drinking water t reatment plant, the second, a MBR, is located at a municipal wastewater treatment plant. The membrane

A novel configuration of a photocatalytic slurry reactor using low-pressure mercury lamps coupled with membrane filtration was proposed, and treatment of polluted river water with a pilot plant of this system was investigated. Both + COD and NH4 -N in the river water were simultaneously removed. Und