Wastewater treatment in the textile printing and dyeing industry involves the purification of high-concentration, high-color, and difficult-to-degrade wastewater produced by this sector. It mainly achieves pollutant removal through chemical methods (such as coagulation, oxidation), physical methods (such as membrane separation), and biological methods, promoting water resource reuse and compliance with discharge standards. Due to the presence of complex organic substances and toxic substances in this wastewater, multiple technologies need to be combined for treatment. Traditional processes often adopt a combined biochemical and physicochemical mode.