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Partitioning of Fluoroquinolones on Wastewater Sludge
Author(s) -
Zhou Xuefei,
Zhang Yalei,
Shi Lu,
Chen Jiabin,
Qiang Zhimin,
Zhang Tian C.
Publication year - 2013
Publication title -
clean – soil, air, water
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 66
eISSN - 1863-0669
pISSN - 1863-0650
DOI - 10.1002/clen.201100731
Subject(s) - adsorption , partition coefficient , wastewater , chemistry , sorption , anoxic waters , octanol , environmental chemistry , pulp and paper industry , chromatography , environmental science , environmental engineering , organic chemistry , engineering
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 ( K d ) and the octanol/water partition coefficient ( K ow ) for each FQ was established. The adsorbed fraction of FQs on sludge could then be predicted with the K d . 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.