摘要
利用自主开发的芬顿流化床反应器对邻氨基苯甲酸废水进行处理,考查Fe^(2+)投加量及pH值对邻氨基苯甲酸废水COD去除效果的影响。结果表明,在反应时间为30min,pH=3,COD与H_2O_2、Fe^(2+)的物质的量比为1∶1.1∶0.4时,COD去除率可达85%;pH=5时,COD去除率仍能保持在70%以上。表明流化床芬顿法在降解邻氨基苯甲酸方面要优于传统芬顿工艺,同时该法还能减少铁盐使用量,这对于减少铁泥产量、降低工艺运行成本具有重要意义。
o-Aminobenzoic acid wastewater was treatmented using the self-developed Fenton fluidized bed reactor.The influences of dosage of Fe-（2＋）and pH on removal efficiency of COD was investigated.The experimental results showed that when the reaction time was 30 minutes,and the molar ratio of COD to H2O2 and Fe-（2＋）was 1∶1.1∶0.4,COD removal efficiency was more than 85%;when pH was 3,COD removal efficiency remained more than 70%.The results showed that the fluidized bed Fenton method was superior to the traditional Fenton process in the degradation of o-aminobenzoic acid.The method could also reduce the use of iron salt which was of great significance to reduce the output of iron mud and reduce the operation cost.
作者
孙兰梅
SUN Lan-mei(Chemical Industry Design ~ Engineering Co. , Ltd. , Shenyang Research Institute, Shenyang 110021, China)
出处
《精细与专用化学品》
CAS
2017年第6期17-19,共3页
Fine and Specialty Chemicals
关键词
流化床
芬顿
邻氨基苯甲酸
fluidized bed
Fenton
o-aminobenzoic acid
