Investigation about Tetracycline Removal from Aqueaus Solution by Hybrid Technology Plasma Water Falling Film-Synthesized Zeolite with Different Na2O/SiO2 Ratio

In this research, a hybrid water falling film plasma reactor dielectric barrier discharge with synthesized zeolite has been used to remove the tetracycline from aqueaus solution. Three types of zeolites have been synthesized by the hydrothermal method based on the ratio of sodium dioxide to silicate dioxide 1, 2 and 3. Infrared spectroscopy (FT-IR),X-ray diffraction (XRD), electron microscopy (SEM), specific surface area, X-ray energy diffraction (EDX), and dot-mapping have been performed on these synthesized zeolites. The tetracycline removal efficiency was about 81% at 60 min in a hybrid reactor designed for synthesized zeolite with a ratio of sodium oxide to silica 1. It was found that this removal percentage is 55% higher than the only plasma system. The percentage of COD removal in hybrid system was about 71% based on the tests performed. Based on experiments related to the effect of active species in the tetracycline removal as a radical trapping experiment, the hydroxyl radical was 12% effective than the superoxide radical. The proposed mechanism is discussed for performingan advanced oxidation reaction to remove tetracycline.