Removal of Selected Micropollutants during Conventional and Advanced Water Treatment Processes

Seung Woo Nam, Yeomin Yoon, Soryong Chae, Joo Hyon Kang, Kyung Duk Zoh

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Micropollutants such as caffeine, carbamazepine, metoprolol (MTP), and sulfamethoxazole (SMZ), which are frequently detected in aquatic environments, were selected, and their removal and persistence using classical water treatment processes (coagulation, adsorption, and chlorination), and advanced oxidation processes (AOPs) (ozonation, UV photolysis, UV/H2O2, and UV/chlorine) were examined using liquid chromatography-tandem mass spectrometry (LC-MS/MS). While SMZ was most effectively removed, MTP showed the lowest removal efficiency in all applied water treatments. During coagulation and adsorption processes, SMZ was effectively removed by electrostatic interaction. Chlorination was not effective for removal of the selected micropollutants. Among AOPs, UV/chlorine reaction showed the most effective removal (90-100%) for selected micropollutants, including MTP. Considering its persistence, MTP was proposed as an indicator micropollutant during water treatment.

Original languageEnglish
Pages (from-to)752-761
Number of pages10
JournalEnvironmental Engineering Science
Volume34
Issue number10
DOIs
StatePublished - Oct 2017

Bibliographical note

Publisher Copyright:
© Copyright 2017, Mary Ann Liebert, Inc. 2017.

Keywords

  • adsorption
  • chlorination
  • coagulation
  • metoprolol
  • photolysis
  • UV/chlorination

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