Efficient degradation of recalcitrant pharmaceuticals in greywater using treatment of MBR and immobilized TiO2 porous layers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F24%3A43930051" target="_blank" >RIV/60461373:22320/24:43930051 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22330/24:43930051 RIV/60461373:22340/24:43930051 RIV/60461373:22810/24:43930051

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acsestwater.4c00618" target="_blank" >https://pubs.acs.org/doi/10.1021/acsestwater.4c00618</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsestwater.4c00618" target="_blank" >10.1021/acsestwater.4c00618</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Efficient degradation of recalcitrant pharmaceuticals in greywater using treatment of MBR and immobilized TiO2 porous layers

Popis výsledku v původním jazyce

Traditional wastewater treatment often fails to remove pharmaceuticals, necessitating advanced solutions such as TiO2 photocatalysis for post-treatment. However, conventionally applied powder TiO2 can be cumbersome to separate from treated water. To solve this issue, this study immobilized three TiO2 photocatalysts (Anatase 16, Anatase 5, and P25) into porous layers and evaluated their efficacy for the degradation of three pharmaceuticals (naproxen - NPX, sulfamethoxazole - SMX, metformin - MTF) in standard solutions and greywater pre-treated in a membrane bioreactor (MBR). In standard solutions, photocatalysis tests revealed a high degradation efficacy (NPX - 100%, SMX - 76-95%, MTF - 57-75%) and challenged the belief that OH• is the predominant reactive oxygen species (ROS). The primary ROS were 1O2 for NPX and OH• for SMX and MTF. The raw greywater (NPX, SMX, MTF – 0.5 mg.L–1) treatment in MBR removed only by 17-22% of the pharmaceuticals, highlighting the need for post-treatment. Using this pretreated greywater, P25 layers excelled for NPX (78±5%) and SMX (73±4%) but were less effective for MTF (40±16%) compared to Anatase 16 (60±10%). Moreover, the effluent toxicity (Aliivibrio fischeri) was reduced, and the degradation products identified. Overall, TiO2 layers are a high-potential method for removing pharmaceuticals from MBR-treated greywater.

Název v anglickém jazyce

Efficient degradation of recalcitrant pharmaceuticals in greywater using treatment of MBR and immobilized TiO2 porous layers

Popis výsledku anglicky

Traditional wastewater treatment often fails to remove pharmaceuticals, necessitating advanced solutions such as TiO2 photocatalysis for post-treatment. However, conventionally applied powder TiO2 can be cumbersome to separate from treated water. To solve this issue, this study immobilized three TiO2 photocatalysts (Anatase 16, Anatase 5, and P25) into porous layers and evaluated their efficacy for the degradation of three pharmaceuticals (naproxen - NPX, sulfamethoxazole - SMX, metformin - MTF) in standard solutions and greywater pre-treated in a membrane bioreactor (MBR). In standard solutions, photocatalysis tests revealed a high degradation efficacy (NPX - 100%, SMX - 76-95%, MTF - 57-75%) and challenged the belief that OH• is the predominant reactive oxygen species (ROS). The primary ROS were 1O2 for NPX and OH• for SMX and MTF. The raw greywater (NPX, SMX, MTF – 0.5 mg.L–1) treatment in MBR removed only by 17-22% of the pharmaceuticals, highlighting the need for post-treatment. Using this pretreated greywater, P25 layers excelled for NPX (78±5%) and SMX (73±4%) but were less effective for MTF (40±16%) compared to Anatase 16 (60±10%). Moreover, the effluent toxicity (Aliivibrio fischeri) was reduced, and the degradation products identified. Overall, TiO2 layers are a high-potential method for removing pharmaceuticals from MBR-treated greywater.

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<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

ACS ES&amp;T Water

ISSN

2690-0637

e-ISSN

2690-0637

Svazek periodika

4

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

"5587–5597"

Kód UT WoS článku

001367655300001

EID výsledku v databázi Scopus

2-s2.0-85210768208