UV IRRADIATION FOR REMOVAL OF VETERINARY ANTIBIOTICS

被引：0

作者：

Li, Wenjun ^{[1
,2
]}

Peng, Xianjia ^{[1
]}

Wang, Hongyu ^{[3
]}

Liang, Zhen ^{[1
]}

Luan, Zhaokun ^{[1
]}

机构：

[1] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China

[2] Hebei Univ Engn, Coll City Construct, Handan 056038, Peoples R China

[3] Zhejiang Univ Technol, Coll Civil Engn & Architecture, Hangzhou 310014, Zhejiang, Peoples R China

来源：

FRESENIUS ENVIRONMENTAL BULLETIN | 2011年 / 20卷 / 01期

关键词：

UV; degradation; antibiotics; kinetics; CHROMATOGRAPHY-MASS SPECTROMETRY; SWINE WASTE-WATER; LIQUID-CHROMATOGRAPHY; SULFONAMIDES; DEGRADATION; MECHANISM;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The large-scale application of veterinary antibiotics in livestock industry makes swine wastewater an important source of antibiotic pollution. The effective removal of antibiotics in swine wastewater seems necessary. UV irradiation was employed for removal of five selected veterinary antibiotics, sulfamethoxazole (SMX), sulfathiazole (STZ), sulfamethazine (SMN), sulfamethizole (SML) and sulfadimethoxine (SDM), which are commonly found in swine wastewater. The effect of initial pH and reaction time on antibiotic removal was examined, and the reaction kinetics were studied. Both pH value and reaction time for the removal were optimized to be 7.0 and 60 min, respectively. Under the optimized conditions, the five selected antibiotics were effectively removed with removal efficiency of .00%, 98.7%, 96.3%, 99.0% and 100% for SMX, STZ, SMN, SML and SDM, respectively. The degradation reaction was found to fit the first-order kinetic well. Veterinary antibiotics SMX, STZ, SMN, SML and SDM can be effectively removed under UV irradiation, and pH value as well. is reaction time have obvious effects on the degradation. The reaction mechanism was suggested to be mainly the direct photo-degradation.

引用

页码：93 / 98

页数：6

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