Akademik Veri Yönetim Sistemi
4th International Environmental Chemistry (EnviroChem) Congress, Antalya, Türkiye, 31 Ekim - 02 Kasım 2022, ss.54
Chemical contaminants such as salts, bleaches, nitrogen, dyes, pesticides, metals and human or animal drugs pollute underground and surface water resources1. Consumption of water that has been exposed to pollutants can cause chronic health problems. Therefore, it is necessary to decontaminate drinking water before consumption by utilization many techniques. Adsorption is the most preferred techniques due to low cost, low energy consumption, high efficiency and simplicity of application2. In this study, removal of active pharmaceutical ingredients such as acetaminophen (also known as paracetamol) and diclofenac (commercially known as voltaren) from their aqueous solutions was investigated by adsorption onto activated carbon cloth (ACC). The commercial ACC is used in this study was Spectracarb 2225 (Spectra Corp., Shelton, USA). The adsorption process was followed on-line by in-situ UV-vis spectroscopy via specially designed adsorption cell. Excellent removal efficiencies were achieved for acetaminophen (99%) and diclofenac (97%) end of 6 hours adsorption studies. Kinetic data were treated according to pseudo-first order and pseudo-second order models. Pseudo-second order model was found to fit best in representing the experimental kinetic data. Adsorption isotherms were derived at 25 °C on the basis of batch analysis. Isotherm data were examined according to Langmuir and Freundlich models. Adsorption isotherm data fitted to Langmuir isotherm better than Freundlich model.