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Chlorination and chloramination of tetracycline antibiotics: disinfection by-products formation and influential factors.
Zhou, Shiqing; Shao, Yisheng; Gao, Naiyun; Zhu, Shumin; Ma, Yan; Deng, Jing.
Afiliación
  • Zhou S; State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.
  • Shao Y; State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China; China Academy of Urban Planning & Design, Beijing 100037, China. Electronic address: yishengshao@163.com.
  • Gao N; State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.
  • Zhu S; State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.
  • Ma Y; Shanghai Urban Water Resources Development and Utilization National Engineering Center Co. Ltd., Shanghai 200092, China.
  • Deng J; State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.
Ecotoxicol Environ Saf ; 107: 30-5, 2014 Sep.
Article en En | MEDLINE | ID: mdl-24905694
Formation of disinfection by-products (DBPs) from chlorination and chloramination of tetracycline antibiotics (TCs) was comprehensively investigated. It was demonstrated that a connection existed between the transformation of TCs and the formation of chloroform (CHCl3), carbon tetrachloride (CCl4), dichloroacetonitrile (DCAN) and dichloroacetone (DCAce). Factors evaluated included chlorine (Cl2) and chloramine(NH2Cl) dosage, reaction time, solution pH and disinfection modes. Increased Cl2/NH2Cl dosage and reaction time improved the formation of CHCl3 and DCAce. Formation of DCAN followed an increasing and then decreasing pattern with increasing Cl2 dosage and prolonged reaction time. pH affected DBPs formation differently, with CHCl3 and DCAN decreasing in chlorination, and having maximum concentrations at pH 7 in chloramination. The total concentrations of DBPs obeyed the following order: chlorination>chloramination>pre-chlorination (0.5h)>pre-chlorination (1h)>pre-chlorination (2h).
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tetraciclinas / Cloraminas / Cloro / Desinfección / Antibacterianos Idioma: En Revista: Ecotoxicol Environ Saf Año: 2014 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
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XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tetraciclinas / Cloraminas / Cloro / Desinfección / Antibacterianos Idioma: En Revista: Ecotoxicol Environ Saf Año: 2014 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos