摘要
以亚铁改性活性炭为催化剂,采用微波诱导氧化工艺(MIOP)处理雅格素蓝(BF-BR)染料模拟废水,结果表明最佳工艺条件为:固液比1∶10(5.0g改性活性炭与50mLBF-BR溶液混合),微波功率500W,辐照时间5min,此时对BF-BR的脱色率可达99%,对COD的去除率为96 8%。动力学研究表明,该氧化过程符合一级反应动力学规律,其动力学方程为:lnC=0.7345t+lnC0(r=0.991),反应速率常数=0.7345/min,半衰期为0 95min。此外,微波诱导氧化对BF-BR的处理效果优于活性炭吸附和单纯的微波加热,这是活性炭吸附和微波诱导氧化协同作用的结果。
By using ferrous-modified activated carbon as catalyst, microwave induced oxidation process (MIOP) was used to treat the simulated Argazol Blue (BF-BR) dye wastewater. The result showed that under the optimum condition of solid/liquid ratio 1∶10 (5.0 g modified activated carbon mixed with 50 mL BF-BR solution), microwave power 500 W, and irradiation time 5 min, the decolorization rate of BF-BR can come up to 99% and COD removal rate up to 96.8%. Kinetics study indicated that the oxidation process accords with the first order reaction kinetics, with the kinetics equation given as follows: ln C = 0.734 5 t + ln C_0 (r =( 0.991)), reaction velocity constant = 0.734 5 min^(-1), half life = 0.95 min. According to the further investigation, use of MIOP for treatment of BF-BR is more effective than that of activated carbon adsorption and simple microwave heating, and it is attributed to the cooperation of activated carbon adsorption with microwave induced oxidation.
出处
《中国给水排水》
CAS
CSCD
北大核心
2004年第4期13-15,共3页
China Water & Wastewater
基金
国家自然科学基金资助项目(50278023)
黑龙江省自然科学基金资助项目(E0211)
关键词
微波诱导氧化工艺(MIOP)
改性活性炭
染料废水处理
microwave induced oxidation process (MIOP)
modified activated carbon
dye wastewater treatment