Elimination of dissolved Fe3 ions from water by electrocoagulation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13520%2F18%3A43893643" target="_blank" >RIV/44555601:13520/18:43893643 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/18:10389232 RIV/67985858:_____/18:00507033

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10971-018-4669-z" target="_blank" >http://dx.doi.org/10.1007/s10971-018-4669-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10971-018-4669-z" target="_blank" >10.1007/s10971-018-4669-z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Elimination of dissolved Fe3 ions from water by electrocoagulation

Popis výsledku v původním jazyce

Electrocoagulation (EC) was applied for elimination of dissolved Fe3+ ions from model contaminated water. Electrochemical experiments were performed using a coagulation set-up with the volume of storage tank of 50 L. To represent inorganic contamination, FeCl3*6H2O was chosen as a model pollutant; its concentration was equal to 50 mg/L. Experiments were carried out by circulating model effluent (1 pass) through the cell at a flow rate (40 L/h) whilst operating the power supply in galvanostatic mode. Dosing concentration was varying by changing the input current between set points and holding for sufficient time for steady state to be reached and for a sample to be collected. The process using the steel electrode reached removal efficiency up to 99 %, depending on pH, and proved to be very suitable for elimination of dissolved Fe3+ ions from water. However, electrochemical experiments using the aluminium electrode reached removal efficiency only up to 25 %. The different efficiency of two anodes is probably due to lower adsorption capacity of hydrous aluminum oxide for iron ions in comparison to hydrous ferric oxides. Produced nanostructured flocs were subsequently filtered, dried and characterized by N2 physisorption, X-ray photoelectron spectroscopy and scanning electron microscopy. Obtained characteristics synchronously demonstrate different tendencies of Al and Fe nanostructured flocs.

Název v anglickém jazyce

Elimination of dissolved Fe3 ions from water by electrocoagulation

Popis výsledku anglicky

Electrocoagulation (EC) was applied for elimination of dissolved Fe3+ ions from model contaminated water. Electrochemical experiments were performed using a coagulation set-up with the volume of storage tank of 50 L. To represent inorganic contamination, FeCl3*6H2O was chosen as a model pollutant; its concentration was equal to 50 mg/L. Experiments were carried out by circulating model effluent (1 pass) through the cell at a flow rate (40 L/h) whilst operating the power supply in galvanostatic mode. Dosing concentration was varying by changing the input current between set points and holding for sufficient time for steady state to be reached and for a sample to be collected. The process using the steel electrode reached removal efficiency up to 99 %, depending on pH, and proved to be very suitable for elimination of dissolved Fe3+ ions from water. However, electrochemical experiments using the aluminium electrode reached removal efficiency only up to 25 %. The different efficiency of two anodes is probably due to lower adsorption capacity of hydrous aluminum oxide for iron ions in comparison to hydrous ferric oxides. Produced nanostructured flocs were subsequently filtered, dried and characterized by N2 physisorption, X-ray photoelectron spectroscopy and scanning electron microscopy. Obtained characteristics synchronously demonstrate different tendencies of Al and Fe nanostructured flocs.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Journal of Sol-Gel Science and Technology

ISSN

0928-0707

e-ISSN

—

Svazek periodika

2018

Číslo periodika v rámci svazku

88

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

49-56

Kód UT WoS článku

000445914600006

EID výsledku v databázi Scopus

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