ClO_2氧化/TiO_2复合吸附剂协同体系处理印染废水的实验研究  

ClO_2 oxidation and TiO_2 adsorption for treatment of a dyeing wastewater

作　　者：鲁秀国[1] 刘雪梅[1] 张全兴[2] 陈金龙[2] 

机构地区：[1]华东交通大学土木建筑学院,江西南昌330013 [2]南京大学环境学院,污染控制与资源化研究国家重点实验室,江苏南京210093

出　　处：《环境污染与防治》2007年第4期303-305,共3页Environmental Pollution & Control

摘　　要：利用ClO2氧化/TiO2复合吸附剂协同体系对处理实际印染废水进行了实验研究。结果表明,对于COD为750mg/L、色度为250倍、SS为100mg/L的1000mL印染废水,当溶液pH为4.0、ClO2用量20mg/L、TiO2复合吸附剂用量2.5g、反应时间和吸附时间分别为2、8min时,处理后的废水COD<100mg/L、色度<40倍、SS<70mg/L,达到了《纺织染整工业水污染物排放标准》(GB4287—92)排放要求。并对两者的协同机理进行了理论上的探讨。A dyeing wastewater sample was well treated by TiO2 adsorption followed by ClO2 oxidation. After the combined treatment performed at pH=4.0, using 2.5 of TiO2 for 8 min of adsorption and 20 mg/L of ClO2 for 2 min of oxidation, the treated sample was dischargeable under the existing discharge limits for dyeing wastewater; the starting COD was reduced from 750 mg/L to〈100 mg/L and that the wastewater color was reduced from 250 dilutions to 40 dilutions. The mechanisms for synergism of ClO2 oxidation and TiO2 adsorption were proposed.

关 键 词：CLO2氧化 TiO2复合吸附剂 协同 印染废水 

分 类 号：X791[环境科学与工程—环境工程]