| Autor: |
Choon-Ki Na, Gayeon Park, Han Yong Kim, Hyunju Park |
| Předmět: |
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| Zdroj: |
Desalination & Water Treatment; 12/25/2023, Vol. 316, p299-305, 7p |
| Abstrakt: |
This study investigates the potential of electrospun polyacrylonitrile (PAN) nanofibers chemically modified with ethylenediamine (EDA) as effective adsorbents for nitrate-nitrogen (NO3-N) removal from wastewater. The nanofibers treated with 100% EDA at 95°C exhibited the highest adsorption capacity of 47 mg/g at 5 h of reaction time, whereas those at 80°C showed an increased adsorption capacity over time, reaching 46 mg/g after 15 h. Optimal NO3-N adsorption was observed in the weakly acidic pH range (3-6). This study also explored the field applicability and regeneration potential of PAN-EDA nanofibers. An adsorption-regeneration experiment involving fixed-bed columns showed promising results, with the adsorbent's performance sustained over multiple uses. Overall, this study concluded that PAN-EDA nanofibers are effective and reusable adsorbents for nitrate removal, paving the way for more sustainable wastewater treatment strategies. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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