摘要
研究了复频超声波氧化降解水中苯酚的降解效果 ,并且详细探讨了影响复频超声波降解苯酚的影响因素 .实验结果表明 :复频超声波处理苯酚去除率远比单独 2 2kHz和单独 40kHz超声波处理效率之和还大 ,复频超声波氧化技术具有明显的协同效应 ,苯酚降解速率提高了 1 5倍 .另外在实验中通过加入Fenton试剂能够加速苯酚的降解 .
The degradation of phenol in aqueous solution by the dual-frequency ultrasound technology and the major affecting factors such as sound intensity, pH value of solution, initial concentration and medium temperature are studied.The results show that the dual-frequency ultrasound technology is superior to single frequency ultrasound technology in degradation of phenol.Within half an hour, the phenol removal rate by using dual-ultrasonic irradiation is obviously higher than the sum of the removal rates by using two separate single frequency ultrasonic irradiations.The synergetic effect of dual-frequency ultrasound is significant. In addition, adding Fenton reagent could accelerate the phenol removal rate.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2003年第4期570-574,共5页
CIESC Journal
