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. 2017 Mar 1:581-582:715-721.
doi: 10.1016/j.scitotenv.2016.12.188. Epub 2017 Jan 7.

Partition and fate analysis of fluoroquinolones in sewage sludge during anaerobic digestion with thermal hydrolysis pretreatment

Ning Li  1 , Huajie Liu  2 , Yonggang Xue  2 , Hongyang Wang  3 , Xiaohu Dai  4
Affiliations

Partition and fate analysis of fluoroquinolones in sewage sludge during anaerobic digestion with thermal hydrolysis pretreatment

Ning Li et al. Sci Total Environ. .

Abstract

Fluoroquinolones (FQs) are broad-spectrum synthetic antibiotics that play an important role in the treatment of serious bacterial infections. FQs can reach wastewater treatment plants from different routes, and eventually accumulate in activated sludge. In this study, a solid-phase extraction (SPE) with HPLC-FLD detection method was utilized to investigate the partition and fate of FQs in digested sludge when thermal hydrolysis was used as pretreatment. As a result, thermal hydrolysis showed minor effects on the fate of FQs in batch anaerobic digestion processes, while anaerobic digestion alone removed >60% FQs and finally assisted in the mitigation of the inhibitory effects to microbial communities.

Keywords: Anaerobic digestion; Fluoroquinolones; Sewage sludge; Solid-phase extraction (SPE); Thermal hydrolysis.

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