The presented study focuses on inspecting the dependency between process conditions, especially permeate and retentate pressure component recovery of H2, CO, CO2 during a membrane separation model syngas. Experiments with both pure components mixture were performed using laboratory unit Ralex GSU-LAB-200 polyimide hollow fibre module 3000 fibres. Permeability values established at 1380 Barrer f...

This study was conducted to determine the potential utilization of microfiltration (MF) membrane in separating functional compounds from beetroot (Beta vulgaris L.) biomass as a drink for natural oxidation prevention. Separation performed through MF (pore size 0.15 µm) at room temperature, flow rate ~7.5 L/min, and TMP 2 6 bar 0, 5, 15, 25, 35 minutes. The results showed that process optimizati...

Plant proteins contain bioactive peptides with functional properties and physiological activities. In the present work, produced during in vitro gastrointestinal digestion of soya protein isolate were investigated. Protein samples subjected to simulated a generation permeate (<3 kDa) retentate (>3 fractions. The was analysed by nano-liquid chromatography electrospray ionisation tandem mass spec...

In this study, multifunctional alkaline pulping was suggested to produce different pulp grades at one mill site, ranging from high-yield paper pulp to high-purity dissolving pulp. In all process modifications, sulfur was successfully replaced by anthraquinone. Autohydrolysis and alkaline pre-extraction were applied to Eucalyptus globulus wood chips, followed by kraft and soda-AQ pulping. Alkali...

An innovative process for the microfabrication of Pd-based membranes (Pd and Pd-Ag) on a <110> silicon wafer is presented. Pd-Ag alloy films containing 23wt% Ag are prepared by a dual-sputtering from pure Pd and Ag targets. In the first step, deep grooves are KOH etched in one side of a <110> oriented silicon wafer, leaving membranes with a thickness of ca. 50 μm. After Pd alloy deposition on t...

During acute lung inflammation, the airspaces are invaded by circulating neutrophils. These may then injure tissues through the release of elastase. Different natural specific inhibitors such as alpha1-proteinase inhibitor, secretory leukocyte proteinase inhibitor, and elafin are nonetheless able to counteract the enzymatic activity of elastase. The present study was undertaken to assess the ro...

Membrane fouling control is of paramount importance for sustainable operation of membranebased drinking water treatment processes. Natural organic matter (NOM) is considered as the major membrane foulant and therefore its characterization is important for implementing fouling control strategies. This study proposes a fluorescence-based modeling approach for estimating and predicting the fouling...

In order to avoid carbon dioxide (CO2) built up in the atmosphere, the major source of global warming, CO2 capture must be applied to large point sources including natural gas processing. Membrane process, a relatively new technology among other available techniques, can be used for the purpose of CO2 capture from natural gas. Over the decades, the membrane performance has been described by dif...