苯胺黑药的厌氧生物降解与机理  

Anaerobic biodegradation and mechanism of aniline aerofloat

作　　者：程亚杰[1] 宋卫锋[1] 林丽婷[1] 董明[1] 

机构地区：[1]广东工业大学环境科学与工程学院,广东广州510006

出　　处：《中国环境科学》2016年第4期1033-1038,共6页China Environmental Science

基　　金：广东省科技计划项目(2014A020209077)

摘　　要：以苯胺黑药为研究对象,利用UV、IC和GC-MS分析苯胺黑药的生物降解途径.结果表明:经24h厌氧降解,苯胺黑药降解率达到44.18%.苯胺黑药厌氧降解不同时段的产物经IC及GC-MS分析,48h后产生了NO_3^-、PO_4^(3-)、SO_4^(2-),苯胺黑药中P和S部分转化为PO_4^(3-)、SO_4^(2-).降解过程中检测出苯胺、2,5-二叔丁基苯酚、C_(13)H_(23)Cl_3O_2、1-二十醇、十二烷和二十烷.推测其途径为苯胺黑药降解成苯胺及磷酸盐,硫酸盐,苯胺再脱除氨基降解生成2,5-二叔丁基苯酚,最终降解为链烃类有机物1-二十醇、二十二烷、二十烷.The degradation pathways and mechanisms of aniline aerofloat in an anaerobic reactor were investigated by UV, IC and GC-MS analysis. The results showed that total aniline aerofloat content of up to 44.18% were degraded within 48 hours. N, P and S elements in aniline aerofloat were partially converted into NO_3^-, PO_4^（3-） and SO_4^（2-）, respectively, according to IC analysis. The main degradation intermediates were monitored by GC-MS and determined as aniline, 2,5-bis（1,1-dimethylethyl）-, C_（13）H_（23）Cl_3O_2, 1-nonadecene, docosane and eicosane. It is proposed that the aniline aerofloat was firstly degraded into aniline, phosphate and sulfate, and was then deaminizated to form phenol, 2,5-bis（1,1-dimethylethyl） and NO_3^-, which are further degraded to chain hydrocarbons including 1-nonadecene, docosane and eicosane.

关 键 词：苯胺黑药 厌氧 降解机理 

分 类 号：X703.5[环境科学与工程—环境工程]