Research Abstracts

The removal of bisphenol A (BPA) from drinking water by ultrafiltration membrane (UF) using dead-end model was investigated. The experiment was focused on the effect of various factors on removal efficiency with respect to BPA initial concentration, molecular weight cut offs (MWCOs) of membrane, pH,

The demand for clean water is currently increasing because of the decreasing sources of drinking water the stringent environmental legislation and the rigorous quality demands. Nanofiltration may be a solution for the effective separation of anionic detergents from used water or wastewater. In this

The aim of this work is the performance study of the various stages of groundwater treatment in a pharmaceutical industry. We were particularly interested in the influence of the reverse osmosis on the data processing sequence. The water quality was evaluated in terms of conductivity; the performanc

Porous polyamide membranes have been commercialized for many years and in nowadays widely used in fine separation processes often manufactured by the immersion precipitation process. This process for the membrane preparation involves precipitation of an incipient casting dope metastable. In this pap

Nanofiltration (NF) membranes retention depends on charge repulsion and size exclusion, combining the properties of ultrafiltration and reverse osmosis membranes. The molecular weight cut-off of two NF membranes was determined using cross-flow filtration of different molecular weights of non-ionized

This work discusses the applicability of the DSPM with dielectric exclusion (DSPM-DE) to describe nitrate rejection of a high rejection nanofiltration membrane (NF90 from Dow-Filmtec). In particular, the limitations of the application of the model to relatively high feed concentration and different

The textile industry uses enormous quantities of water which in many cases are disposed to the environment with inadequate treatment. The effluent contains high salts and organics concentrations and they are therefore difficult to be treated. In this work the effluents from the cotton textile indust

The transmission and toxicity of metals and metalloids were initially investigated with various nanofiltration (NF) and seawater reverse osmosis (SWRO) membranes, under oxic condition, using wastewater effluent and seawater samples. Various metals and metalloids were categorized into three groups ac

At “Debiensko” Desalination Plant salt crystallizer is supplied with untreated brine concentrated by RCC evaporation method that results in high energy consumption and huge amount of post-crystallization lye. Nanofiltration pre-treatment of coal-mine brine was then considered to improve plant outcom

Perchlorate and tris(2-chloroethyl) phosphate (TCEP), which have been widely detected micropollutants in rivers and wastewater effluents, were investigated in terms of removals by nanofiltration (NF) membranes under different membrane feed water conditions. For this study, NF membranes with differen