The presented review is focused on a brief overview of the scientific works on the use of sheep wool outside the textile industry that were published in recent years. The focus of the information is the on construction industry, which is a significant consumer of heat- and sound-insulating materials. With its properties, sheep wool can compete very well with insulators made from non-renewable resources. Other building elements can also be combined with wool, as long as they are used in appropriate conditions. Due to its chemical and physical structure, wool is extremely suitable for the adsorption removal of pollutants from the living and working environment, in native or modified form. Wool can also be used in recycling processes. However, each application must be preceded by an investigation of the optimal conditions of the given process, which offers researchers inspiration and interesting topics for research.

The traditional textile use of wool as a valuable renewable material needs alternative applications in order to, besides sheep milk and meat, valorize currently unnecessary wool. Each type of product containing sheep wool requires wool with customized properties. Finding suitable physical and chemical modifications needed to develop new products while minimizing harmful side effects is a challenge for scientists. The presented review provides a brief overview of works published over the last decade associated with innovative wool scouring, dyeing, antifelting, and modification of its structure without the ambition to present complete, detailed data.

This work analyses 10 adsorption isotherm models applied to adsorption of Cr(III) and Cu(II) from binary solutions on electron-irradiated sheep wool (0-24-100) kGy. The results are compared with fitting the same adsorbates from corresponding single solutions. The competing cation significantly changes the fitting of the selected isotherms to the extent that even simultaneous fitting of the same cation in the single and binary solution is rare. In the case of Cr(III), 4 favourable matches were found out of 30 compared cases, while in the case of Cu(II), only 2 conformities were found. Having the Cr(III) coordination number exclusively of 6, but Cu(II) up to 4, 5, 6, the last coordinates more easily with the ligands provided by keratin, resulting in preferential chemisorption. If there is still a lack of cysteic acid in the wool to interact with Cr(III) also, this is adsorbed on the wool physically, too. The amount of cysteic acid increasing in the wool with the absorbed dose of energy improves the chemisorption of Cr(III), as well. It can be summarized that during competitive adsorption, Cu(II) binds by chemisorption and Cr(III) by both physisorption and chemisorption, depending on the dose of energy absorbed by the wool.

In this work, the effect of prewetting native and electron beam-modified wool on the resulting sorption of Cu(II) from wool solutions was studied. The following conditions and combinations were applied: 6 mM and 50 mM solutions, prewetting time 0–24 h, contact time 1–24 h. The sorption results showed that wetting the wool before sorption from the low concentrated solution can fundamentally improve the efficiency of the separation process. The opposite result was achieved when applying a more concentrated solution; that is, prewetting slightly reduced the sorptivity. The reasons for such results are discussed. The application of these findings can be used to optimize the separation process in technological practice, however, will require solute specification.

Rozšírenie odbornosti štúdiom popri zamestnaní nie je jednoduché. Okrem pevných vôľových vlastností, podpory okolia a dôkladného časového manažmentu adepta sú kľúčové základné vedomosti, na ktorých sa zakladajú nadväzné disciplíny. Mnohé poznatky, ktoré poslucháč v minulosti možno aj mal, časom vybledli a je potrebné ich obnoviť.Predkladané texty majú práve toto poslanie. Skrátenou formou ponúkajú základné teoretické súvislosti, ale aj ich demonštrovanie na konkrétnych príkladoch z matematiky, chémie a fyziky.Autori dúfajú, že texty budú dobrou a najmä zrozumiteľnou učebnou pomôckou, ušetria čas na vyhľadávanie v rôznych externých zdrojoch a zlepšia predpoklad na úspešné absolvovanie rozširujúceho štúdia. Rozšírenie odbornosti štúdiom popri zamestnaní nie je jednoduché. Okrem pevných vôľových vlastností, podpory okolia a dôkladného časového manažmentu adepta sú kľúčové základné vedomosti, na ktorých sa zakladajú nadväzné disciplíny. Mnohé poznatky, ktoré poslucháč v minulosti možno aj mal, časom vybledli a je potrebné ich obnoviť.Predkladané texty majú práve toto poslanie. Skrátenou formou ponúkajú základné teoretické súvislosti, ale aj ich demonštrovanie na konkrétnych príkladoch z matematiky, chémie a fyziky.Autori dúfajú, že texty budú dobrou a najmä zrozumiteľnou učebnou pomôckou, ušetria čas na vyhľadávanie v rôznych externých zdrojoch a zlepšia predpoklad na úspešné absolvovanie rozširujúceho štúdia.