Partitioning of Fluoroquinolones on Wastewater Sludge |
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| Authors: | Xuefei Zhou Yalei Zhang Lu Shi Jiabin Chen Zhimin Qiang Tian C. Zhang |
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| Affiliation: | 1. Key Laboratory of Yangtze Water Environment of Ministry of Education, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, P. R. China;2. Research Center for Eco‐environmental Sciences, Chinese Academy of Sciences, Beijing, P. R. China;3. Civil Engineering Department, University of Nebraska‐Lincoln, Lincoln, NE, USA |
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| Abstract: | Laboratory‐scale batch experiments were conducted to investigate the adsorption behavior of eight fluoroquinolones (FQs) on aerobic, anoxic, and anaerobic sludge, under different adsorpiton time, pH, and temperature conditions. Results indicated that adsorption of FQs onto all sludge was a physical sorption process. The relationship of the partitioning coefficient (Kd) and the octanol/water partition coefficient (Kow) for each FQ was established. The adsorbed fraction of FQs on sludge could then be predicted with the Kd. It was calculated that about 50–72% of the FQs were adsorbed on the sludge. Therefore, the adsorption effect must be considered when studying the fate and occurrence of FQs in wastewater treatment systems. |
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| Keywords: | Adsorption Adsorption isotherms Antibiotics Pharmaceutical and personal care products Wastewater treatment |
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