The rapid development of dyestuff industry increases the emissions of the dye wastewater, gradually aggravating the pollution in the environment and posing a great threat to the human health. So it is important to develop effective methods to clean the dye wastewater. Various new materials and new processes are involved in physical methods (the activated carbon adsorption method, the membrane separation technology, and the magnetic separation technology), chemical methods (the electrochemical process, the chemical oxidation process) and biological methods (the dye wastewater treatment by fungi, the dye wastewater treatment by bacteria), as reviewed in this paper, focusing on the physical methods and the chemical methods. The main problems in the process of the dye wastewater treatment and the development trend are put forward.

dye wastewater  /  treatment process  /  photocatalytic oxidation process