Preparing Egg Shells in an Environmentally Friendly Way and Removing Methyl Orange Dye From the Aqueous Solution

Abstract

The auxiliary agent was prepared by taking eggshells and grinding them into a powder. It was used to remove the dye (Methyl orange) that contaminated the water (dissolves in water) as an assistant agent. The optimal conditions for the adsorption process were studied, starting from the equilibrium time, which was determined to be one hour. The optimal weight of the assistant agent was found to be 0.15 grams after measuring the maximum wavelength of the dye, which was 624 nm. A calibration curve was constructed using a range of concentrations (0.1500, 0.1, 0.05, 0.01), and the effect of temperature on the adsorption process was also investigated. Since adsorption is an exothermic process, an inverse relationship was observed with temperature. Different temperatures (10°C, 20°C, 30°C, 40°C, 50°C) were selected for the study.