The invention is related to the manufacturing process of nano-composite ultra-filtration membranes with included particles of clay minerals. These particles have a large active surface area and excellent ability to adsorb various pollutants from wastewater. The proposed procedure includes pre-treatment of PP membrane in acetone and soaking wet membrane with a solution of monomer dispersed O-MMT particles (organically modified montmorillonite) by treatment with ultrasound followed by in-situ polymerization of nano-composite hydrogel in the pores of PP membrane using UV light. By the described procedure, the total area of membrane is covered with hydrogel on the surface and inside the PP membrane pores. The mechanism of pollutant removal from wastewater in this case is a combination of filtration and adsorption, resulting in greater treatment effect than in the case of commercial ultra-filtration membranes, where contaminants in the membrane are retained only mechanically.
F.06 Development of a new product
COBISS.SI-ID: 16158742The invention refers to the procedure of chemical-physical pre-treatment of regenerated cellulose fibres with the aim to prepare fibres for an efficient surface modification. The suggested procedure includes fibres swelling in NaOH water solution at room temperature and drying of swollen fibres by freeze drying (lyophilisation). Thereby the hornification process is prevented. Freeze drying leads to a porous, open structure which influences the efficiency of dyeing or finishing processes of fibres.
F.09 Development of a new technological process or technology
COBISS.SI-ID: 15883286Chair of the scientific board of the international conference Fibre-grade polymers, chemical fibres and special textiles, 7th Central European conference 2012, Portorose 2012.
C.01 Editorial board of a foreign/international collection of papers/book
COBISS.SI-ID: 71085569