Removal of sulfonamide antibiotics from wastewater by gamma irradiation in presence of iron ions

被引：17
|
作者：
Wan, Zhong [1 ]
Wang, Jian-Long [1 ,2 ]
机构：
[1] Tsinghua Univ, Collaborat Innovat Ctr Adv Nucl Energy Technol, INET, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Beijing Key Lab Radioact Waste Treatment, INET, Beijing 100084, Peoples R China
来源：
NUCLEAR SCIENCE AND TECHNIQUES | 2016年 / 27卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Sulfadiazine (SD); Gamma radiation; Advanced oxidation process (AOP); Wastewater treatment; Antibiotics; PERSONAL CARE PRODUCTS; AQUEOUS-SOLUTION; RADIOLYTIC DEGRADATION; RADIATION; PHARMACEUTICALS; CHLOROPHENOLS; DECOMPOSITION; ENVIRONMENT;
D O I：
10.1007/s41365-016-0109-3
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The presence of sulfonamide antibiotics in aquatic environments has received increasing attention in recent years. Sulfadiazine (SD), a widely used heterocyclic sulfonamide pharmaceutical, has entered into the receiving water body. In this paper, gamma rays are used to irradiate samples of sulfadiazine antibiotics-containing wastewater. The results demonstrate that SD can be effectively degraded by irradiation, but the mineralization degree of SD (in terms of TOC) is not as efficient as the SD degradation. The addition of Fe 2+ can significantly enhance the SD degradation and mineralization through the generation of hydroxyl radical by catalytic decomposition of H2O2 from water radiolysis. Ion chromatography analysis indicates that sulfate ions (SO4 (2-)) and formate (HCOO-) are the main intermediate products. Gamma irradiation is a promising technology for removing low-concentration antibiotics from water and wastewater.
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页数：5
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