Feasibility of high silica ZSM-5 recovery by ozone with sulfamethoxazole removal from water

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F19%3A79728" target="_blank" >RIV/60460709:41330/19:79728 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S221471441930964X" target="_blank" >https://www.sciencedirect.com/science/article/pii/S221471441930964X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jwpe.2019.100956" target="_blank" >10.1016/j.jwpe.2019.100956</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Feasibility of high silica ZSM-5 recovery by ozone with sulfamethoxazole removal from water

Popis výsledku v původním jazyce

This work assessed the feasibility of recovering exhausted high-silica ZSM-5 for the first time. High-silica ZSM-5 (HSZSM-5) loaded with sulfamethoxazole (SMX) was regenerated by water-dissolved ozone. Results showed that 97% recovery of adsorption capacity of regenerated HSZSM-5 was obtained at 2,54 mg/L of ozone after 15 min reaction. Lower SiO2/Al2O3 ratio of HSZSM-5 and initial SMX concentration had a higher recovery ratio of adsorption capacity of regenerated HSZSM-5. The sequential HSZSM-5 adsorption (AD) and ozone oxidation (OZ) experiments were also performed to investigate the effect of pH on the regeneration efficiency of loaded HSZSM-5 and the regeneration mechanism was characterized by fourier-transform infrared spectroscopy, X-ray diffraction and thermogravimetric analysis. No degraded isoxazole ring of SMX adsorbed in the sinusoidal channels of HSZSM-5 was responsible for the decreased recyclability of HSZSM-5.Higher ozone activity of deprotonated SMX at higher pH (above pKa2) favored t

Název v anglickém jazyce

Feasibility of high silica ZSM-5 recovery by ozone with sulfamethoxazole removal from water

Popis výsledku anglicky

This work assessed the feasibility of recovering exhausted high-silica ZSM-5 for the first time. High-silica ZSM-5 (HSZSM-5) loaded with sulfamethoxazole (SMX) was regenerated by water-dissolved ozone. Results showed that 97% recovery of adsorption capacity of regenerated HSZSM-5 was obtained at 2,54 mg/L of ozone after 15 min reaction. Lower SiO2/Al2O3 ratio of HSZSM-5 and initial SMX concentration had a higher recovery ratio of adsorption capacity of regenerated HSZSM-5. The sequential HSZSM-5 adsorption (AD) and ozone oxidation (OZ) experiments were also performed to investigate the effect of pH on the regeneration efficiency of loaded HSZSM-5 and the regeneration mechanism was characterized by fourier-transform infrared spectroscopy, X-ray diffraction and thermogravimetric analysis. No degraded isoxazole ring of SMX adsorbed in the sinusoidal channels of HSZSM-5 was responsible for the decreased recyclability of HSZSM-5.Higher ozone activity of deprotonated SMX at higher pH (above pKa2) favored t

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF WATER PROCESS ENGINEERING

ISSN

2214-7144

e-ISSN

—

Svazek periodika

32

Číslo periodika v rámci svazku

N

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

1-6

Kód UT WoS článku

000504472800061

EID výsledku v databázi Scopus

2-s2.0-85072277930