Removal of Selenium from Aqueous Solutions Using Polymer/Hydrated Iron Oxide Composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F25%3A43932882" target="_blank" >RIV/60461373:22320/25:43932882 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1080/07366299.2025.2456805" target="_blank" >https://doi.org/10.1080/07366299.2025.2456805</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/07366299.2025.2456805" target="_blank" >10.1080/07366299.2025.2456805</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Removal of Selenium from Aqueous Solutions Using Polymer/Hydrated Iron Oxide Composites

Popis výsledku v původním jazyce

In order to develop a process for efficient removal of selenium from wastewater, two composites were prepared by impregnating hydrated iron oxide within commercially available polymeric sorbents (Lewatit M600 and Purolite S110). Adsorption of selenium was investigated in both batch and dynamic column experiments. Both composites exhibited an improved sorption efficiency toward Se(IV) and Se(VI) compared to their matrixes. Effect of pH was investigated in a pH range of 3 to 8. On the Composite Purolite S110, removal of Se(IV) and Se(VI) decreased with increasing pH. In the case of Composite Lewatit M600, with increasing pH Se(IV) removal decreased while Se(VI) removal increased. The results of the batch experiments performed with the composites were compared with a commercially available composite and an inorganic sorbent. Column dynamic experiments suggested that satisfactory removal of Se(IV), Se(VI) or their mixture from 860 µg/L to less than 10 µg/L could be achieved by both composites in the presence of accompanying anions. The maximum breakthrough capacity for selenium removal was achieved for the Composite Lewatit M600, where it was 3.4 g Se/L for Se(IV), 1.1 g Se/L for Se(VI) and 1.2 g Se/L for their mixture. The exhausted composites were regenerated with alkaline brine and reused. © 2025 The Author(s). Published with license by Taylor &amp; Francis Group, LLC.

Název v anglickém jazyce

Removal of Selenium from Aqueous Solutions Using Polymer/Hydrated Iron Oxide Composites

Popis výsledku anglicky

In order to develop a process for efficient removal of selenium from wastewater, two composites were prepared by impregnating hydrated iron oxide within commercially available polymeric sorbents (Lewatit M600 and Purolite S110). Adsorption of selenium was investigated in both batch and dynamic column experiments. Both composites exhibited an improved sorption efficiency toward Se(IV) and Se(VI) compared to their matrixes. Effect of pH was investigated in a pH range of 3 to 8. On the Composite Purolite S110, removal of Se(IV) and Se(VI) decreased with increasing pH. In the case of Composite Lewatit M600, with increasing pH Se(IV) removal decreased while Se(VI) removal increased. The results of the batch experiments performed with the composites were compared with a commercially available composite and an inorganic sorbent. Column dynamic experiments suggested that satisfactory removal of Se(IV), Se(VI) or their mixture from 860 µg/L to less than 10 µg/L could be achieved by both composites in the presence of accompanying anions. The maximum breakthrough capacity for selenium removal was achieved for the Composite Lewatit M600, where it was 3.4 g Se/L for Se(IV), 1.1 g Se/L for Se(VI) and 1.2 g Se/L for their mixture. The exhausted composites were regenerated with alkaline brine and reused. © 2025 The Author(s). Published with license by Taylor &amp; Francis Group, LLC.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

SOLVENT EXTRACTION AND ION EXCHANGE

ISSN

0736-6299

e-ISSN

1532-2262

Svazek periodika

43

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

17

Strana od-do

195-211

Kód UT WoS článku

001402641700001

EID výsledku v databázi Scopus

2-s2.0-105001474568