Removal of sulfonamide antibiotics from water by high-silica ZSM-5
Jazyk angličtina Země Anglie, Velká Británie Médium print
Typ dokumentu časopisecké články
PubMed
31596262
DOI
10.2166/wst.2019.294
Knihovny.cz E-zdroje
- MeSH
- adsorpce MeSH
- antibakteriální látky analýza MeSH
- chemické látky znečišťující vodu analýza MeSH
- čištění vody metody MeSH
- kinetika MeSH
- oxid křemičitý MeSH
- sulfonamidy analýza MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- antibakteriální látky MeSH
- chemické látky znečišťující vodu MeSH
- oxid křemičitý MeSH
- sulfonamidy MeSH
Adsorption characteristics of high-silica zeolites (HSZSM-5) for two selected sulfonamide antibiotics (SAs) (sulfamethoxazole and sulfadiazine) were investigated. The SAs were almost completely (>90%) removed from the water by HSZSM-5. Adsorption followed second-order kinetics with liquid-film diffusion as the dominant mechanism. SA adsorption capacity on high-silica zeolites was examined in terms of pH, temperature, and the presence of natural organic matter (NOM). HSZSM-5 had better adsorption performance in acidic conditions, and the apparent distribution coefficient indicated that SA0 species were the major contribution to the overall adsorption at pH of 2-10. Adsorption of SAs on HSZSM-5 was a spontaneous and exothermic physisorption process. SA removal by HSZSM-5 was a mixed mechanism through ion-exchange and hydrophobic interaction. HSZSM-5 has potential application prospects in removing SAs from wastewater.
College of Resources and Environment Huazhong Agricultural University Wuhan 430070 China E mail
College of Science Huazhong Agricultural University Wuhan 430070 China
Sainuo Environment Technology Company Limited China Gezhouba Group Rizhao 276800 China
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