摘要
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。
We used the method of Flocculation Sedimentation - Catalytic Oxidation to decolor the coking plant wastewater after biochemical treatment. We discussed the flocculant and Catalytic Oxidation's effects of decoloring, as well as the reduction of F-, CN-, CODCr, and NH3 - N. We the also find a proper new technology to decolor the coking plant wastewater. It takes poly- FeCl3 as the flocculant, PAM as the auxiliary and SD101 as the catalytic oxidant. When the pH of wastewater is 6.5 - 7.0. the temperature of wastewater is 30℃, this treatment technology can effciently decolor the wastewater from 140 times to 50 times or even lower, while many other pollutants' concentration decreased greatly.
出处
《上海化工》
CAS
2000年第13期4-5,8,共3页
Shanghai Chemical Industry
关键词
焦化废水
浊凝沉降
催化氧化
脱色
废水处理
Coking plant wastewater
Flocculation sedimentation
Catalytic oxidation
Decolor