Removal of Organic Pollutants from Colored Wastewater Using Nanocomposite Adsorbents: A Review

Document Type : Original Articles

Authors

1 Department of Chemical and Polymer Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran

2 , Department of Chemical and Polymer Engineering, South Tehran Branch , Islamic Azad University , Tehran , Iran.

3 Department of Chemistry, Faculty of Science, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran

4 Department of Environmental Research, Institute for Color Science and Technology, Tehran, Iran.

Abstract

The presence of various organic pollutants such as dyes in water changes the color of water or its quality and creates a terrible effect on the health of all creatures on the planet. Today, researchers have done a lot of research in the field of removing organic pollutants and have chosen the best method for wastewater treatment, which includes the adsorption process, the main reason for which is the low cost and simplicity of this method. Several methods including physical (adsorption, membrane, etc.), chemical (advanced oxidation, photo-Fenton, ozonation, etc.), and biological processes are used to remove dyes. In this research, the removal of dyes as organic pollutants with different nanocomposites with parameters affecting surface adsorption, which include adsorbent dosage, equilibrium absorption capacity, solution pH and temperature, and based on isotherm, kinetics, and thermodynamics, have been investigated with different models. The results showed that the adsorption process has a great impact on the environment with wastewater treatment.

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Main Subjects


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