摘要
采用超声波/Fenton法处理丙烯腈聚合废水,研究了超声波和Fenton法对聚合废水COD的去除效果及影响因素。结果表明:超声波和Fenton法联合处理时对聚合废水COD的去除效果优于超声波或Fenton法单独处理时的效果。利用超声波和Fenton法联合处理聚合废水时,废水初始pH值、H_(2)O_(2)投加量、H_(2)O_(2)投加方式、n(Fe^(2+))∶n(H_(2)O_(2))、超声功率和超声时间均对COD去除效果有一定影响,其最佳处理条件为:超声功率为200 W,废水初始pH值为3.5,H_(2)O_(2)投加量为15 mL/L且逐滴滴加,n(Fe^(2+))∶n(H_(2)O_(2))=1∶2,超声处理30 min,该条件下对废水中COD的去除率可达到83%。
Ultrasonic/Fenton method was used to treat acrylonitrile polymeric wastewater,the effect of it on COD removal and the influencing factors were studied.The results showed that,the combined process of ultrasonic and Fenton had a better COD removal effect compared to single ultrasonic or Fenton method.Using ultrasonic/Fenton method to treat polymeric wastewater,factors such as initial pH value of the wastewater,H_(2)O_(2)dosage,H_(2)O_(2)dosing mode,n(Fe^(2+))∶n(H_(2)O_(2)),ultrasonic power and ultrasonic time,had certain influence on COD removal,the optimal treatment condition was:the ultrasonic power was 200 W,the initial pH value of the wastewater was 3.5,dosing 15 mL/L H_(2)O_(2)drop by drop,n(Fe^(2+))∶n(H_(2)O_(2))=1∶2,the ultrasonic time was 30 min.Under the above condition,the removal rate of COD could reach 83%.
作者
乔恩停
雍志远
陈晔
QIAO Enting;YONG Zhiyuan;CHEN Ye(School of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 211100,China)
出处
《工业用水与废水》
CAS
2024年第4期42-47,共6页
Industrial Water & Wastewater
