...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Water Research >Reaction of chlorine dioxide with emergent water pollutants: Product study of the reaction of three β-lactam antibiotics with ClO_2
【24h】

Reaction of chlorine dioxide with emergent water pollutants: Product study of the reaction of three β-lactam antibiotics with ClO_2

机译：二氧化氯与水污染物的反应：三种β-内酰胺类抗生素与ClO_2反应的产物研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This work deals with the chlorine dioxide (ClO_2) reactivity with three representative /f-lactam antibiotics (penicillin, amoxicillin and cefadroxil) that can be present in natural aquatic resources. Due to the wide use of ClO_2 as disinfection agent our work is of interest to determine the fate of these antibiotics during the water treatment process. Our study shows that antibiotics react stoichiometrically with ClO_2 because increasing amounts of ClO_2 lead to increasing antibiotic disappearance. Concerning the influence of antibiotic structure, penicillin reacts sluggishly with ClO_2, whereas amoxicillin and cefadroxil are highly reactive at either neutral or basic pH. For both reactive antibiotics, hydroquinone together with a wide range of 4-substituted phenols were detected as products. Pretreatment with ClO_2 before chlorination of aqueous solutions of antibiotics reduces the trihalomethane formation as compared with analogous chlorination without ClO_2 pretreatment.
机译：这项工作涉及天然水生资源中可能存在的三种代表性的/ f-内酰胺类抗生素（青霉素，阿莫西林和头孢氨苄）的二氧化氯（ClO_2）反应性。由于ClO_2作为消毒剂的广泛应用，我们的工作对于确定这些抗生素在水处理过程中的命运很有意义。我们的研究表明，抗生素与ClO_2发生化学计量反应，因为ClO_2的增加导致抗生素消失的增加。关于抗生素结构的影响，青霉素与ClO_2反应缓慢，而阿莫西林和头孢羟氨苄在中性或碱性pH下均具有高反应性。对于这两种反应性抗生素，均检测到氢醌与多种4-取代酚一起作为产物。与未经ClO_2预处理的类似氯化相比，在将抗生素水溶液氯化之前用ClO_2进行的预处理减少了三卤甲烷的形成。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号