吹脱法处理DMF废水的检测影响因素研究  

Study on the influencing factors of DMF wastewater treatment by stripping method

作　　者：刘国[1,2,3] 唐浩然 何天煜 谢志豪 LIU Guo;TANG Hao-ran;HE Tian-yu;XIE Zhi-hao(State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu 610059,China;State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & WaterPollution SEKL-SW,Chengdu 610059,China;College of Environment and Ecology,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]地质灾害防治与地质环境保护国家重点实验室,四川成都610059 [2]国家环境保护水土协同控制与联合修复重点实验室,四川成都610059 [3]成都理工大学环境学院,四川成都610059

出　　处：《应用化工》2020年第1期256-257,262,共3页Applied Chemical Industry

基　　金：四川省科技厅重点研发项目(2017SZ0177)

摘　　要：研究了吹脱法处理DMF废水的检测影响因素。结果表明,5 mL DMF标准溶液(100 mg/L)中添加二甲胺,0~142 mg二甲胺添加量范围内,吸光度与二甲胺添加量呈现良好的线性关系,其线性方程为y=-0.0007 x+0.3112,相关系数(r)为0.9700。二甲胺添加量为178 mg时,产生红色沉淀。去除二甲胺影响后在不同加标水平下回收率为94.7%~97.9%,相对标准差(RSD)为3.79%~7.70%。The factors influencing the detection of DMF wastewater by blow-off method were studied.The result showed that adding dimethylamine to 5 mL DMF standard solution(100 mg/L),the range of 0~142 mg dimethylamine added,the absorbance and dimethylamine addition showed a good linear relationship,the linear equation is y=-0.0007 x+0.3112,correlation coefficient(r)is 0.9700.When the amount of dimethylamine added was 178 mg,a red precipitate was produced.After removing the influence of dimethylamine,the recovery rate was 94.7%~97.9%and the relative standard deviation(RSD)was 3.79%~7.70%.

关 键 词：二甲基甲酰胺 吹脱 二甲胺 

分 类 号：TQ014[化学工程] TQ016.51