Pedosphere 27(1): 42--51, 2017
ISSN 1002-0160/CN 32-1315/P
©2017 Soil Science Society of China
Published by Elsevier B.V. and Science Press
Occurrence and fate of antibiotics in the aqueous environment and their removal by constructed wetlands in China: A review
GUAN Yi-Dong1,2, WANG Bo3, GAO Yong-Xia1, LIU Wen4, ZHAO Xiao-Li1, HUANG Xiao-Feng5, YU Jiang-Hua1
1Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control,Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Sciences and Engineering,Nanjing University of Information Science and Technology, Nanjing 210044 (China)
2Ministry of EducationKey Laboratory of Environment Remediation and Ecological Health, Zhejiang University, Hangzhou 310029 (China)
3Faculty of Horticulture, Soochow University, Suzhou 215006 (China)
4School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta GA 30332(USA)
5Wuxi Urban Development Group Company Limited, Wuxi 214001 (China)
ABSTRACT
      Overuse of antibiotics has become a serious ecological problem worldwide. There is growing concern that antibiotics are losing their effectiveness due to an increased antibiotic resistance in bacteria. During the last twenty years, consumption of antibiotics has increased rapidly in China, whichhas been citedas one of the world’s worst abusers of antibiotics. This review summarizes the current state of antibiotic contamination in China’s three major rivers(the Yangtze River, Yellow River, and Pearl River) and illustrates the occurrence and fate of antibiotics in conventional municipal wastewater treatment plants (WWTPs). The analytical data indicate that traditional WWTPs cannot completely remove these concerned pharmaceuticals, asseen in the large difference between the distribution coefficient (Kd) and the uneven removal efficiency of various types of antibiotics. Although constructed wetlands (CWs) offer a potential way to remove these antibiotics from water supplies, knowledge of their mechanismsis limited. There are four main factors affecting the performance of CWs used for the treatment of antibiotics in water supplies, the types and configurations of CWs, hydraulic load rates, substrates, and plants and microorganisms. Further researches focusing on these factors are needed to improve the removal efficiency of antibiotics in CWs.
Key Words:  antibiotics, river, municipal treatment plant, constructed wetland, China
Citation: Guan, Y. D., Wang, B., Gao, Y. X., Liu, W., Zhao, X. L., Huang, X. F. and Yu, J. H. 2017. Occurrence and fate of antibiotics in the aqueous environment and their removal by constructed wetlands in China: A review. Pedosphere. 27(1): 42-51.
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