Printing and dyeing wastewater treatment equipment

The invention discloses printing and dyeing wastewater treatment equipment and relates to the technical field of printing and dyeing. The equipment comprises a grille, an adjusting tank, a hydrolytic acidation tank, a contact oxidation tank, a coagulatory settling tank and a decolorization tank which are sequentially connected, wherein the adjusting tank is a temperature adjusting tank, and the contact oxidation tank is a biological contact oxidation tank; the biological contact oxidation tank has a rectangular plane shape and comprises a structure layer, a filler layer, a water stabilizing layer and an ultrahigh layer from top to bottom. The equipment is simple in structure and good in wastewater treatment effect, up-to-standard emission can be realized, and environmental pollution is avoided. 本发明公开了种印染废水处理设备，它涉及印染技术领域。它包括格栅、调节池、水解酸化池、接触氧化池、混凝沉淀池和脱色池，格栅、调节池、水解酸化池、接触氧化池、混凝沉淀池和脱色池依次相连，所述的调节池为温度调节池，所述的接触氧化池为生物接触氧化池；所述的生物接触氧化池平面形状为矩形，且其由上至下包括构造层、填料层、稳水层和超高。本发明结构简单，废水处理效果好，能够达标排放，避免了环境污染。