Adsorption and precipitation of tetracycline with struvite

Basakcilardan-Kabakci, Sibel, Thompson, Andrew, Cartmell, Elise and Le Corre, Kristell (2007) Adsorption and precipitation of tetracycline with struvite. Water Environment Research, 79 13: 2551-2556. doi:10.2175/106143007X184618

Author Basakcilardan-Kabakci, Sibel
Thompson, Andrew
Cartmell, Elise
Le Corre, Kristell
Title Adsorption and precipitation of tetracycline with struvite
Journal name Water Environment Research   Check publisher's open access policy
ISSN 1061-4303
Publication date 2007-12
Sub-type Article (original research)
DOI 10.2175/106143007X184618
Volume 79
Issue 13
Start page 2551
End page 2556
Total pages 6
Place of publication Alexandria, VA, United States
Publisher Water Environment Federation
Language eng
Formatted abstract
The interaction of tetracycline with struvite during adsorption and precipitation processes was investigated. Tetracycline removal by adsorption was affected by solution pH, contact time, and struvite concentration. The lowest tetracycline removal (8.4%) was observed at pH 7.7, the dissociation constant (pKa2) of tetracycline. Because of the electrostatic repulsion, the amount of tetracycline adsorbed on the surface was low. The small amount of adsorption was the result of surface complexation between tetracycline ions and metal ions. Calcium (Ca2+) ions in the adsorbent enhanced the binding of tetracycline. Freundlich (K F: 0.04, n: 1.49) and Redlich-Peterson (K R: 0.08, αR: 0.98, βR: 0.49) models best defined the equilibrium data. In the case of struvite precipitation, approximately 22% of tetracycline was removed as a result of binding to struvite alongside struvite formation.
Keyword Tetracycline
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
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