Akademik Veri Yönetim Sistemi
Journal of Civil Engineering Beyond Limits, cilt.6, sa.3, ss.1-10, 2025 (Hakemli Dergi)
Recycling of copper-containing industrial wastewater by removing copper is crucial for preventing heavy metal poisoning. Therefore, this study aimed to determine the k values in an electrodeposition process simulating the electrocoagulation removal of copper from wastewater. This study investigated the influence of stirring speed and temperature on the k values for copper removal from experimentally contaminated acidic solutions in a jacketed reactor stirred by a Rushton turbine. For this purpose, an electrodeposition technique, a combination of ELDCT and NST, was used. This technique doesn’t suffer from the disadvantages of NST, such as naphthalene losses, and its use is limited to electrolytes. The experimental results indicate that increasing the stirring speed leads to a higher limiting current, which consequently enhances the rate of copper removal from the solution. Additionally, raising the temperature increases both the diffusion coefficient and the electrochemical rate constant of copper ions, further accelerating their removal from the solution. The k values were determined to increase by 23% and 11% in the studied stirring speed and temperature ranges, respectively. For this process, Sh number, a dimensionless convective mass transfer coefficient, was correlated with Re and Sc numbers. This relationship can be expressed by the following equation: 𝑆𝑆ℎ=2.3𝑅𝑅𝑅𝑅0.96𝑆𝑆𝑆𝑆0.37.