Removal characteristics of organic pollutants in the cephalosporin pharmaceutical wastewater

被引：0
|
作者：
Kong Y. [1 ,2 ]
Gu W. [1 ]
Duan F. [2 ]
Zhang X. [1 ]
Zhao H. [2 ]
机构：
[1] WEEE Research Center, Research Center of Resource Recycling Science and Engineering, Shanghai Polytechnic University, Shanghai Collaborative Innovation Center for WEEE Recycling, Shanghai
[2] Beijing Engineering Research Center of Process Pollution Control, Key Laboratory of Green Process and Engineering, Division of Environment Technology and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / 04期
关键词：
Organic compounds; Pharmaceuticals; Residual antibiotics; Waste water;
D O I：
10.16085/j.issn.1000-6613.2020-1050
中图分类号：
学科分类号：
摘要：
In order to investigate the removal characteristics of organic pollutants during the treatment process of cephalosporin pharmaceutical wastewater, the removal efficiencies of COD, TOC, ammonia nitrogen, total nitrogen, total phosphorus, and residual antibiotics in wastewater were analyzed. Then, liquid-liquid extraction/gas chromatography-mass spectrometry (GC-MS) methods were employed to analyze the organic pollutants qualitatively. The results showed that the removal efficiency of cefazolin in wastewater achieved 99.1%, while the removal efficiencies of COD, TOC, ammonia nitrogen, total nitrogen, and total phosphorus were between 50.0% and 97.4%. The effluent met the "Discharge standards of water pollutants for pharmaceutical industry chemical synthesis products category" (GB 21904-2008). The qualitative analysis results of GC-MS identified 52 kinds of organic pollutants, containing many kinds of acids, esters, amines and heterocycles, among which trichloromethane, and phenol were listed in the black list of priority pollutants in water. Triethylamine, tetrahydrofuran, N, N-dimethylpivalamide, butanoic acid, 2-thioimidazole, 5-methyl-1, 3, 4-thiadiazole-2(3H)-thione, etc. were derived from the raw materials and intermediates during the production of cephalosporins. Considering the potential environmental toxicity of the above organic pollutants, it is urgent to optimize the existing treatment processes for these pollutants and pay attention to their corresponding residual concentrations and migration-transformation process in the environment. © 2021, Chemical Industry Press Co., Ltd. All right reserved.
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页码：2357 / 2364
页数：7
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