摘要
为了研究湿式催化氧化工艺处理多菌灵废水的降解机制,采用LC-MS、GC-MS等检测氧化出水,初级降解阶段发生酯键裂解、芳环骨架C—N键断裂,苯环骨架的面外变形振动、酰胺键的伸缩振动;初级降解产物进一步降解生成一些简单的芳香醛、酸等中间产物;最后,部分中间产物进一步氧化生成难以氧化的小分子醇或羧酸,如甲醇、乙酸、丙烯酸、甲酸等易生物降解物质,因此,采用的湿式催化氧化法是一种处理多菌灵废水的有效方法。
To study the degradation mechanism of carbendazim wastewater by wet catalytic air oxidation tech nology, LC-MS, GC-MS and so on was used to analyze treated wastewater. Firstly, in the primary degradation stage, there occurs ester bond cleavage of carbendazim, aromatic ring skeleton C--N bond rupture, out of plane de formation vibration of benzene skeleton and stretching vibration of amide bond, the primary degradation products were further degraded to some simple aromatic aldehydes, acids and other intermediates, Finally, some of the inter- mediate products were further oxidized to biodegradable small molecular alcohols or carboxylic acids, such as metha- nol, acetic acid, acrylic acid, formic acid, therefore, the use of wet catalytic air oxidation technology is an effective method to deal with carbendazim wastewater.
作者
刘艳
LIU Yan(Shenyang Research Institute o{ Chemical Industry, Shenyang 110021, China)
出处
《精细与专用化学品》
CAS
2017年第8期47-51,共5页
Fine and Specialty Chemicals
关键词
湿式催化氧化技术
多菌灵
废水
降解机制
wet catalytic air oxidation technology
carbendazim
wastewater
degradation mechanism
