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Perfluorinated and sulfonated proton exchange membranes: Effect of supercritical fluid processing on ion exchange capacity and proton conductivity
The present work has processed Nafion® and sulfonated polystyrene-isobutylenestyrene (SIBS) with supercritical fluid (SCF) carbon dioxide at a 40°C and 200 bar with the aid of ten co-solvents of different size and polarity. ...
Separational purification of nitrate from inedible biomass leachate by electrodialysis: fouling effect
The removal of nitrate and potassium from wheat leachate solution was studied using an electrolytic cell in batch recirculation mode for use in advance life support systems (ALSS). The ALSS or CELSS (Controlled Ecological ...
Design and analysis in modelling reactive separation processes
This work presents the existence of multiple steady states in equilibrium multistage reactive distillation for methyl tert-butyl ether (MTBE) synthesis. The Rachford-Rice procedure is extended to reactive systems where a ...
Novel separation methods for removing nanoparticles and copper from chemical mechanical planarization wastes
Chemical mechanical planarization (CMP) wastewater emanating from semiconductor processing contains copper (II) ions and either alumina and/or silica nanoparticles. The efficiency of biotreatment schemes to remove copper ...