复合式好氧生物法处理印染废水

Printing and Dyeing Wastewater Treatment by Aerobic Biooxidation

采用将传统活性污泥法与生物膜工艺结合形成的复合式好氧生物工艺进行印染废水处理试验研究 ,取得了较好的处理效果 ,对COD去除率平均达到 6 7%以上 ,脱色率平均也达到 38%左右。在对好氧生物处理的控制中 ,DO是一个重要参数 ,从经济和处理效果考虑 ,控制在 1 5～ 2 0mg L较为合理。

The combined aerobic biooxidation is combined with traditional activated sludge process and biomembrane process.Experimental study has been made that using the combined process in treating printing and dyeing wastewater,the effect is better.The results show that the average removal rate of COD is 67%,the averge decolorization rate is 38%.One of the most important parameter in controlling the aerobic biooxidation treatment is DO.Being considered form economic factor and treating effect,the reasonable value of DOshould be 1.5～2.0mg/L.