Treatment of dye wastewater in fine chemical industry has become a bottleneck restricting the sustainable development of this industry. In this paper, aimed at the characteristics of dye wastewater, e.g. complex pollutant composition, plenty of poisonous and harmful ingredients and poor biodegradability, the commonly used harmless treatment technologies are reviewed, including physical treatment methods, chemical treatment methods, biological treatment methods and combination processes of the above. On this basis, the development trend of harmless treatment technology of dye wastewater is predicted to provide technical guidance for treatment of dye wastewater and promote the green and sustainable development of fine chemical industry.

dye wastewater  /  physical methods  /  chemical methods  /  biological methods