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用混凝沉降－催化氧化法对生化处理后的焦化废水进行脱色处理，探讨了混凝条件、催化氧化体系对脱色效果以及氟离子、氰离子、ＣＯＤＣｒ、氨氮等去除效果的影响，确定了合适的用于焦化废水脱色处理的新工艺。以聚三氯化铁为絮凝剂、ＰＡＭ为助凝剂，新型复合氯氧化剂ＳＤ１０１为催化氧化剂，在ｐＨ值为６．５－７．０、水温为３０℃条件下处理３小时，废水的色度从１４０倍降至５０倍以下，其他污染指标的去除效果明显。
The coagulation sedimentation-catalytic oxidation method was used to decolorize biochemical treated coking wastewater. The effects of coagulation conditions, catalytic oxidation system on decolorization, removal of fluoride ion, cyanide ion, CODCr and ammonia nitrogen were discussed. For the coking wastewater decolorization of the new technology. Using polyferric ferric chloride as flocculant and PAM as coagulant aid, a novel compound chlorine oxidant SD101 was used as a catalytic oxidant and was treated for 3 hours at a pH of 6.5-7.0 and a water temperature of 30 ° C. The color of the wastewater Degree from 140 times down to 50 times less obvious removal of other pollution indicators.