INFLUENCE OF MODIFIER AMOUNT ON THE SORPTION PROPERTIES OF CELLULOSIC MATERIAL

Abstract

During the study, the impact of the amination mixture consumption on the key quality indicators of cellulose filtration material, such as colour and turbidity, was analysed. Additionally, the productivity and selectivity of the material were calculated based on these parameters. Infrared (IR) spectroscopy was used to identify the active groups formed during the preparation of the amination mixture. Experimental results showed that using the modifier in an amount of up to 40 % of the absolutely dry fiber mass leads to a significant increase in the materialapos sorption properties, which substantially improves the filtration process efficiency. However, increasing the modifier amount beyond 50 % results in its deposition on the fiber surface, negatively affecting the productivity and sorption capacity of the filtration material. Such modified cellulose can be utilized in environmentally safe water purification systems, where high sorption properties and stability during filtration are key requirements. This makes modified cellulose materials promising for use in modern water treatment systems, where environmental performance and material efficiency under industrial conditions are of paramount importance.