Removal of textile dye reactive blue 49 from wastewater and dye baths by membrane separation and subsequent photo-Fenton reaction, UV-C and UV-C/H2O2

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F24%3A39921694" target="_blank" >RIV/00216275:25310/24:39921694 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S221471442400967X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S221471442400967X?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jwpe.2024.105735" target="_blank" >10.1016/j.jwpe.2024.105735</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Removal of textile dye reactive blue 49 from wastewater and dye baths by membrane separation and subsequent photo-Fenton reaction, UV-C and UV-C/H2O2

Popis výsledku v původním jazyce

The paper is focused on testing the two-phase treatment of wastewater from dyehouses and the production of aminoanthraquinone dyes using membrane separation and a subsequent advanced oxidation process with an efficiency &gt;99.99 %. Commercial nanofiltration membranes AFC 30 and AFC 40 were used for the separation of Reactive Blue 49 dye. The effect of pressure difference, injection concentration, permeate flow intensity, etc. was studied. In all tested parameters, the dye was completely retained without fouling the membranes. The obtained data were interpreted using the film model and the two-parameter Spiegler-Kedem model based on nonequilibrium thermodynamics. The work contains a kinetic study comparing the rate of decolorization and subsequent mineralization of the dye using the photo-Fenton reaction, UV-C, and UV-C/H2O2. The effect of pH was also studied. In all reaction systems the dye chromophore was degraded with simultaneous quantitative decolorization of the model wastewater. Subsequently, the mineralization of the intermediates was studied through the decrease of total organic carbon. Its efficiency ranged from 35 to 82 % within 2 h from the start of degradation. After 7-12 h, depending on the conditions, the dye was already 87-99 % mineralized. The degradation pathway of the dye was proposed using LC-MS.

Název v anglickém jazyce

Removal of textile dye reactive blue 49 from wastewater and dye baths by membrane separation and subsequent photo-Fenton reaction, UV-C and UV-C/H2O2

Popis výsledku anglicky

The paper is focused on testing the two-phase treatment of wastewater from dyehouses and the production of aminoanthraquinone dyes using membrane separation and a subsequent advanced oxidation process with an efficiency &gt;99.99 %. Commercial nanofiltration membranes AFC 30 and AFC 40 were used for the separation of Reactive Blue 49 dye. The effect of pressure difference, injection concentration, permeate flow intensity, etc. was studied. In all tested parameters, the dye was completely retained without fouling the membranes. The obtained data were interpreted using the film model and the two-parameter Spiegler-Kedem model based on nonequilibrium thermodynamics. The work contains a kinetic study comparing the rate of decolorization and subsequent mineralization of the dye using the photo-Fenton reaction, UV-C, and UV-C/H2O2. The effect of pH was also studied. In all reaction systems the dye chromophore was degraded with simultaneous quantitative decolorization of the model wastewater. Subsequently, the mineralization of the intermediates was studied through the decrease of total organic carbon. Its efficiency ranged from 35 to 82 % within 2 h from the start of degradation. After 7-12 h, depending on the conditions, the dye was already 87-99 % mineralized. The degradation pathway of the dye was proposed using LC-MS.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

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

65

Číslo periodika v rámci svazku

August 2024

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

14

Strana od-do

105735

Kód UT WoS článku

001274641100001

EID výsledku v databázi Scopus

2-s2.0-85198592028