INVESTIGATION OF THE USABILITY OF KAOLIN/AGAR BIOCOMPOSITE IN THE REMOVAL OF U(VI) IONS FROM AQUEOUS SOLUTIONS
Project no. 32076 · Status: Kapanmış (Yayın bekleniyor) · 2024
Summary
<p>Today, the growth in industrial output and the corresponding surge in energy requirements are causing a notable rise in the number of power generation facilities.. This development has also resulted in a rise in the volume of waste produced. making waste management an increasingly critical issue. The pre-treatment, management, and disposal of waste generated during both raw material procurement and processing as well as production stages are important research topics for reducing harmful effects on the environment. The development of industrial sectors and rapid population growth have also brought about environmental pollution. The increase in nuclear energy production and related activities has led to the emergence of significant environmental risks and issues, particularly the generation of radioactive waste. This situation not only creates potential impacts on ecosystems but also highlights the necessity for more comprehensive and sustainable processes for waste management, safety, and environmental monitoring.</p><p>In this study, the aim was to investigate the usability of composites prepared by modifying inexpensive and abundant kaolin mineral with acid and base and then combining it with agar biopolymer for the removal of uranium (VI) ions from aqueous solutions. Characterisation studies of the synthesised kaolin agar biocomposite were conducted using techniques such as SEM, TGA, XRD, FT-IR, and XPS. Parameters affecting adsorption efficiency (optimum operating pH, initial U(VI) ion concentration, temperature, and contact time) were investigated using the batch method. The amount of U(VI) remaining in the aqueous solution was determined using ICP-OES. The adsorption efficiency was evaluated using Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) isotherm models, and the corresponding model parameters were determined. Adsorption kinetic and thermodynamic data were examined to determine the adsorption process.</p>