Partitioning of fluoroquinolones on wastewater sludge

Xuefei Zhou; Yalei Zhang; Lu Shi; Jiabin Chen; Zhimin Qiang; Tian C. Zhang

doi:10.1002/clen.201100731

Partitioning of fluoroquinolones on wastewater sludge

Xuefei Zhou, Yalei Zhang, Lu Shi, Jiabin Chen, Zhimin Qiang, Tian C. Zhang

Civil Engineering

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

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 (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.

Original language	English (US)
Pages (from-to)	820-827
Number of pages	8
Journal	Clean - Soil, Air, Water
Volume	41
Issue number	8
DOIs	https://doi.org/10.1002/clen.201100731
State	Published - Aug 2013

Keywords

Adsorption
Adsorption isotherms
Antibiotics
Pharmaceutical and personal care products
Wastewater treatment

ASJC Scopus subject areas

Environmental Chemistry
Water Science and Technology
Pollution

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10.1002/clen.201100731

Cite this

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title = "Partitioning of fluoroquinolones on wastewater sludge",

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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T1 - Partitioning of fluoroquinolones on wastewater sludge

AU - Zhou, Xuefei

AU - Zhang, Yalei

AU - Shi, Lu

AU - Chen, Jiabin

AU - Qiang, Zhimin

AU - Zhang, Tian C.

PY - 2013/8

Y1 - 2013/8

N2 - 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.

AB - 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.

KW - Adsorption

KW - Adsorption isotherms

KW - Antibiotics

KW - Pharmaceutical and personal care products

KW - Wastewater treatment

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Partitioning of fluoroquinolones on wastewater sludge

Abstract

Keywords

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