Research Abstracts

In this study the applicability of membrane distillation (MD) was investigated to produce black-currant juice concentrate. For the experiments enzyme treated, pre-filtered by microfiltration and pre-concentrated by reverse osmosis fruit juice was applied. The measurements were carried out in a hollo

In our present work, the preliminary electrodialytic desalination of wastewater containing 75 mg/L of boron and approximately 1.8 g/L TDS was investigated, as the first step in two-stage boron removal ED process. The wastewater in question originated from Tarnowskie Gry landfill chemicals storage.

By-products obtained from red currant processing still contain large amounts of useful components, e.g. pectin. Pectin was extracted from red currant marc with water at a solid/liquid ratio of 1:10. To reduce the operating costs of further possessing, we concentrated the pectin solution by membrane

The aim of this study was to examine the applicability of reverse osmosis (RO) for the concentration of blackcurrant juice by AFC-80 polyamide tubular membrane that has a salt rejection greater than 80%. The fresh juice had a total soluble solids content of about 16.58Brix. The effect of centrifugat

The mining industry uses large amounts of explosives and a part of them remains undetonated. Since most commercial blasting agents contain ammonium nitrate, there is a direct relationship between explosives use and the ammonium and nitrate levels in mine effluents. Water contamination with nitrogeno

Catalytic polymeric membranes filled with copper oxides of different particles size were prepared and tested in the liquid phase oxidation of benzene to phenol. Polyvinylidenefluoride (PVDF) was used as polymer to make the membranes. Three different solvents, dimethylacetammide (DMAc), dimethylforma

A review with more than 60 references covering macrocycle and macromolecular compounds, i.e. crown ethers, ionizable lariat ethers, calixarenes, calix crowns, as well as macrocycle polymers (for example, cyclodextrins), and macromolecular compounds, i.e. acyclic polyethers used as ion carriers in tr

Model dairy waste waters (prepared from milk powder by dilution) were treated with ozone, and the effects of the ozonation time and the surfactant concentration on the flux, the membrane resistances, membrane fouling and gel formation were measured. It was found that the microflocculation effect of

The results of microfiltration studies using inorganic TiO2/Al2O3 membranes for solutions containing yeast are reported. The aim of the research was experimental as well as mathematical analysis of the permeate flux dependence on time for cross-flow filtration combined with backflushing using permea

This work studied the use of room temperature ionic liquids (RTILs) based on the 1-n -alkyl-3methylimidazolium cation, in supported liquid membranes (SLMs), in order to use them as membrane materials for separation and enrichment of hydrogen from a gaseous mixture containing H2, CO2, and N2. Differe