Advanced Approaches in Dyeing and Printing Wastewater Treatment: A Comparative Study of Physical and Chemical Methods

Abstract

This thesis presents a comprehensive analysis of various physical and chemical methodologies for treating dyeing and printing wastewater, which is a significant environmental concern in the textile industry. It delves into physical techniques like ultrafiltration, nanofiltration, reverse osmosis, and magnetic separation, evaluating their efficiency in removing contaminants and the challenges faced, such as membrane fouling and the requirement for high-quality magnetic seeds. The study also explores chemical methods like electrochemical oxidation and photocatalytic oxidation, highlighting the advancements in electrode materials and the use of TiO2 catalysts in degrading pollutants. A comparison is made between the effectiveness, operational constraints, and economic viability of these methods, emphasizing the need for optimizing existing technologies and developing hybrid systems that integrate the strengths of individual techniques. This research aims to contribute to the ongoing efforts on enhancing wastewater treatment efficiency, reducing environmental impact, and promoting sustainable practices in the textile industry. This work serves as a reference for future research on wastewater treatment, offering insights into developing more effective, cost-efficient, and eco-friendly solutions.