Removal of ammonium, phosphate, and sulfonamide antibiotics using alum sludge and low-grade charcoal pellets

Jung-Yeol JO, Jong-Guk KIM, Yiu Fai TSANG, Kitae BAEK

Research output: Contribution to journalArticlespeer-review

Abstract

Powder adsorbents perform well due to their large surface area but are difficult to use because of aggregation and channeling. In this study, pelletization of adsorbents was proposed as a solution to these operating problems. A three-component mixture was extruded into pellets and calcined under air or nitrogen conditions The pellet adsorbent removed 47, 71, 97, and 72% of ammonium, phosphate, sulfathiazole, and sulfamethoxazole, respectively. Bentonite improved greatly the strength of pellets, and a 10 wt% of bentonite was sufficient to maintain pellet shape and mass. No significant difference in individual adsorption and multi-pollutant adsorption was found. Pellet adsorbents with alum sludge, bentonite, and low-grade charcoal are low-cost materials that effectively remove multi-pollutants from the aqueous phase. Copyright © 2021 Elsevier Ltd. All rights reserved.
Original languageEnglish
Article number130960
JournalChemosphere
Volume281
Early online dateMay 2021
DOIs
Publication statusPublished - Oct 2021

Citation

Jo, J.-Y., Kim, J.-G., Tsang, Y. F., & Baek, K. (2021). Removal of ammonium, phosphate, and sulfonamide antibiotics using alum sludge and low-grade charcoal pellets. Chemosphere, 281. Retrieved from https://doi.org/10.1016/j.chemosphere.2021.130960

Keywords

  • Leachate
  • Adsorption
  • Low-grade charcoal
  • Alum sludge
  • Bentonite
  • Pelletization

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