真蜡印染废水的预处理

Pretreatment of the Effluent from Wax Dyeing and Printing

采用加酸工艺预处理的真蜡印染废水,废水中CODCr含量由原来的10000mg/L左右迅速下降为500mg/L以下,出水色度<40倍,完全能进入常规的污水处理设施进行水处理。

Pretreated by acid addition process, the CODcr in the effluent of wax dyeing and printing decreases from about 10000 mg/L to below 500 mg/L, and the colour depth of the effluent less than 40 times. Thus, this pretreated effluent meets the standard utterly to drain into common waste water disposing facilities for further treatment.