Abstract:

Iron (II, III) oxide (Fe3O4) nanoparticles are one of the magnetic nanoparticle types that can be used in wastewater treatment due to their ability to adsorb and rapidly remove pollutants in the environment. Iron (II, III) oxide (Fe3O4); It has high regeneration efficiency, large surface area and magnetic properties. The adsorption capacity of Fe3O4 particles varies depending on the particle size and pollutant concentration used. In addition, in these types of iron oxide substances, the particles can be easily removed using a magnet after the reaction is over. Then the adsorbed pollutants can be separated from the particle using a catalyst and the particle can be reused. In this study, the treatment of textile wastewater by adsorption method using chemically synthesized Fe3O4 nanoparticles was investigated. Adsorption performance was investigated at different Fe3O4 concentrations (250-750 mg/L) and contact times (5- 45 minutes). The optimum reaction time and adsorbent concentration obtained were found to be 30 minutes and 250 mg/L, respectively. Total organic carbon (TOC), color and chemical oxygen demand (COD) removals under optimum conditions were observed as 25.94%, 51.64% and 66.68%, respectively. The results showed that the adsorption process using magnetic nanoparticles was very effective in removing COD and color pollutants in textile wastewater, but no significant change was observed in the amount of TOC. Although the application of iron oxide nanoparticles for the treatment of textile wastewater does not meet the discharge standards, it can be used as a pre- treatment or advanced treatment method to reduce the pollution load in various treatment processes.

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