Research Abstracts

To build and operate a “hydrogen economy” in future, it is essential to develop safe and reliable technologies to handle (produce, recover, concentrate, store, deliver, etc.) hydrogen gas. In this work, application possibilities of polystyrene foam were studied and the experiments have proven that c

The influence of a coagulant type and operating parameters on crossflow microfiltration of aqueous dispersions of titanium dioxide was examined. Two types of coagulant for series of crossflow microfiltration experiments were used: inorganic * Al2(SO4)3 and organic * PRAESTOL. The experiments were ca

The results of microfiltration (MF) studies using ceramic 150 kDa membrane and model solutions containing bovine serum albumin (BSA) with and without NaCl as well as salted wastewater from fish industry are reported. The aim of the research was experimental analysis of operating parameters enabling

In this work, the membrane technique of nanofiltration (NF) was used to carry out partial demineralization of whey and milk ultrafiltration permeate (MUP). The experiments were performed in a completely automated NF pilot plant. An aromatic polyamide spiral wound membrane supplied by Osmonics (USA)

Many industrial wastewater streams contain toxic metal cations, for example, Ni2+, Zn2+, etc. or their oxyanions in up to few hundred mg/dm3, which must be removed before water recycling or discharging directly into surface waters. The conventional processes to treat this kind of wastewater are, e.g

The principal distinction of tyrosine transport in the electromembrane system is revealed. It lies in the absence of electromigration of this amino acid through the cation-exchange membrane MC-40 in a wide range of current density. This is true for any pH value, including the region where tyrosine e

Whey is the main by-product obtained from cheese production. It contains a high concentration of organic matter, mainly proteins and lactose, and mineral salts. Usually, pre-treated whey was discharged into sewer together with the other liquid effluents from the dairy industry. However, the increasi

The dynamic ultrafiltration of anionic surfactant solution, sodium dodecyl benzene sulfonate (SDBS), using a rotating disk system with hydrophilic polyethersulfone (PES) membranes (MWCO 10 kDa) was studied in this paper. The effects of mean transmembrane pressure (TMP) and disk rotating speed on the

Ultrafiltration is a modern technology used for the production of drinking water. Current research in this area focus on the reduction of production costs through the development of innovative plants. The aim of this work is to study ways to limit the fouling of hollow fibre membranes during dead-en

This study is focused on the application of the ion exchange Á submerged microfiltration hybrid process for boron removal from geothermal water containing high level of boron (8 Á 9 mg B/L). The goal of this study is to determine the optimum parameters such as feed flow rate, resin concentration and