Partitioning of fluoroquinolones on wastewater sludge

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

Research output: Contribution to journalArticle

14 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 (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.

Original languageEnglish (US)
Pages (from-to)820-827
Number of pages8
JournalClean - Soil, Air, Water
Volume41
Issue number8
DOIs
StatePublished - Aug 1 2013

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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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