Acta Innovations

12-19

Authors: Edyta Kudlek, Jolanta Bohdziewicz, Mariusz Dudziak

The aim of the study was to develop an innovative method for the removal of selected pharmaceuticals from biologically treated municipal wastewater. The photocatalytic oxidation in the presence of TiO2 was carried out in a reactor irradiated with a UV lamp (power 150 W) and two-­‐stage membrane filtration was also applied. In the first stage the catalyst particles were separated using a microfiltration membrane. In the second stage the wastewater was polished in a semi-­‐industrial installation equipped with a flow-­‐through tubular membrane module with a filter surface area of 240 cm2. The system combining photocatalysis and membrane filtration allowed for complete elimination of the pharmaceuticals.

29-38

Authors: Joanna Kulczycka, Marzena Smol

Eco-­‐efficiency which takes into account the life cycle idea is a relatively new concept described by ISO Interna-­‐ tional Standard 14045:2012. It can be used in environmental management by integration environmental considerations with economic analysis to improve products and technologies. Nowadays, eco-­‐efficiency is a strategic tool and it is one of the key factors of it sustainable development. In the investment decision-­‐ making process, to assess new technology solutions and to choose the best options, the eco-­‐efficiency account should be introduced. Life Cycle Assessment (LCA) as a method used to assess environmental aspects and quantified impacts of investment project is proposed. Life cycle cost analysis being the combination of Net present value (NPV) with life cycle cost (LCC) was chosen for quantifying their financial effects. The eco-­‐ efficiency analysis based on LCA can be recommended not only as a decision support tool for individual inves-­‐ tors, but also for ranking of investment projects when applying of financial support from structural or other national funds, as well in sustainable public procurement.

48-55

Authors: Aleksandra Roszko, Elzbieta Fornalik­‐Wajs

The main purpose of conducted studies was recognition of low concentration nanofluid under the influence of magnetic field potential applications. The investigations are having fundamental character but Authors keep in mind better energy utilization through the heat transfer enhancement. The examined fluid was composed of water and Cu/CuO nanoparticles. Three temperature differences were imposed on the system. The results did not give unequivocal answer on possible utilization of studied phenomena, but there is open scene for the studies of particle-­‐fluid interaction and flow structure. The main conclusion is that the magnetic properties of base fluid and particles are crucial for such analysis.