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Elimination of Dissolved Fe3+ Ions from Water by Electrocoagulation.

SYSNO ASEP	0507033
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Elimination of Dissolved Fe3+ Ions from Water by Electrocoagulation.
Author(s)	Gaálová, Jana (UCHP-M)_{RID, SAI, ORCID} Krystyník, Pavel (UCHP-M)_{RID, SAI, ORCID} Dytrych, Pavel (UCHP-M)_{RID, ORCID, SAI} Klusoň, Petr (UCHP-M)_{RID, ORCID, SAI}
Source Title	Journal of Sol-Gel Science and Technology. - : Springer - ISSN 0928-0707 Roč. 88, č. 1 (2018), s. 49-56
Number of pages	8 s.
Language	eng - English
Country	US - United States
Keywords	water treatment ; iron ; electrocoagulation
Subject RIV	CI - Industrial Chemistry, Chemical Engineering
OECD category	Chemical process engineering
R&D Projects	TA04020130 GA TA ČR - Technology Agency of the Czech Republic (TA ČR)
	LM2015073 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Limited access
Institutional support	UCHP-M - RVO:67985858
UT WOS	000445914600006
EID SCOPUS	85046543504
DOI	10.1007/s10971-018-4669-z
Annotation	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 50L. To represent inorganic contamination, FeCl(3)6H(2)O was chosen as a model pollutant. Its concentration was equal to 50mg/L. Experiments were carried out by circulating model effluent (1 pass) through the cell at a flow rate (40L/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 aluminum 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 N-2 physisorption, X-ray photoelectron spectroscopy, and scanning electron microscopy. Obtained characteristics synchronously demonstrate different tendencies of Al and Fe nanostructured flocs.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2020
Electronic address	http://hdl.handle.net/11104/0298125

Number of the records: 1