Abstract:

In this study, it is aimed to remove itaconic acid, one of the important members of carboxylic acids, from its aqueous solutions by using Adsorption method. Recently the Layered Double Hydroxide (LDH), which has attracted attention in many areas was synthesized by co-precipitation method and used as an adsorbent. In order to determine the optimum working conditions, the effects of the adsorption time, LDH amount, adsorption temperature and initial acid concentration changes on the adsorption efficiency were examined. Almost 70% of the acid could be removed from the water phase in one-stage batch adsorption experiments conducted under different conditions. Kinetic studies were carried out using time-dependent measurements. The compatibility of the obtained results with pseudo first order, second order and elovich kinetic models was evaluated. Langmuir, Freundlich and Temkin isotherms plots were created using equilibrium data. Although high correlation results were obtained in all isotherms (R2>0.98), it was observed that the experimental data showed a complete agreement with the Langmuir isotherm.

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