超声/H_2O_2/活性污泥协同降解甲基紫的研究  

On Synergetic Degradation of Methyl Violet by Ultrasonic/H_2O_2/Activated Sludge

作　　者：陈国和[1] 袁翊蒙[1] 王丹[1] 

机构地区：[1]绍兴文理学院生命科学学院,浙江绍兴312000

出　　处：《绍兴文理学院学报》2012年第9期5-10,共6页Journal of Shaoxing University

基　　金：绍兴市院校科技合作专项资金重点项目(2010722)

摘　　要：利用超声波/H2O2对甲基紫进行化学降解,然后用活性污泥进行生物降解.结果表明,超声波/H2O2对甲基紫的降解具有明显的协同作用,其降解率比超声波单独作用提高了40%,比H2O2单独作用提高了60%;降解率随超声功率、频率和超声时间的增大而增加;pH值对降解率的影响较大.经生物降解后,甲基紫总降解率可达96.3%,COD总降解率为93.5%.Methyl violet solution was firstly degraded by ultrasonic and H2O2, and then degraded by activated sludge. The results showed that the synergistic effect of ultrasonic/H2O2 on the degradation of methyl violet was remarkable. It was 40% and 60% higher than the results by using ultrasonic and H2O2 alone. The degradation rate increased with ultrasonic power, sound density and the extension of ultrasonic time, and it was greatly influ- enced by the pH value of the solution. The total degradation rate of methyl violet and COD was 96.3% and 93. 5% respectively, after handled by activated sludge.

关 键 词：超声波 H2O2 降解 甲基紫 活性污泥 

分 类 号：X131.2[环境科学与工程—环境科学]