Dissolution of EAF slag minerals in aqueous media: Effects of sonication on brownmillerite and gehlenite

被引:1
作者
Kurtulus, Recep [1 ,2 ]
Khoei, Mahtab Akbarzadeh [1 ]
Adesanya, Elijah Damilola [1 ]
Yliniemi, Juho [1 ]
机构
[1] Univ Oulu, Fiber & Particle Engn Res Unit, POB 4300, Oulu 90014, Finland
[2] Afyon Kocatepe Univ, Fac Engn, Dept Mat Sci & Engn, Afyon, Turkiye
关键词
Electric arc furnace slag; Gehlenite; Brownmillerite; Dissolution; Sonication; Citrate; PART II; MECHANISM; KINETICS; MICROSTRUCTURE; ANORTHITE; HYDRATION; BEHAVIOR; AL; SI;
D O I
10.1016/j.ultsonch.2024.107065
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
The accumulation of electric arc furnace slag (EAFS) in landfills has been causing severe environmental problems. This study examines the dissolution properties of EAFS minerals, including brownmillerite and gehlenite, essential for their possible use in resource recovery. An investigation was conducted to compare the effects of sonication and stirring on mineral dissolution while also assessing the usage of citrate as a complexing agent for gehlenite. Synthetic brownmillerite and gehlenite minerals were dissolved in aqueous solutions at room temperature using a 1:100 g/ml ratio. The dissolved elements were measured using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES), while zeta potential and X-ray Photoelectron Spectroscopy (XPS) were used to assess changes in surface chemistry. Brownmillerite had significant dissolution extents, with Al and Ca dissolving up to 16 % and 8 %, respectively, in contrast to gehlenite, which dissolved less than 2 % under similar conditions. Sonication significantly increased the dissolution of brownmillerite by up to 100 %, although its impact on gehlenite dissolution varied depending on the duration of time. Besides, adding citrate enhanced the leaching of Al and Ca from gehlenite by facilitating complexation. XPS data demonstrated differences in elemental ratios on brownmillerite and gehlenite surfaces affected by the method used and the presence of citrate. Lastly, the dissolution extents of Al and Ca from EAFS were up to 12 %, depending on time and mixing method, with a preference for sonication over stirring. In conclusion, this study showed that minerals in EAFS have distinct dissolution characteristics, and sonication and citrate can considerably enhance dissolution.
引用
收藏
页数:14
相关论文
共 70 条
[1]   Evolution of magnetic properties in F-doped brownmillerite Ca2Fe2O5 [J].
Aich, Payel ;
Meneghinf, Carlo ;
Ray, Sugata .
MATERIALS RESEARCH EXPRESS, 2019, 6 (02)
[2]   Insights into the Valorization of Electric Arc Furnace Slags as Supplementary Cementitious Materials [J].
Andersson, Anton ;
Isaksson, Jenny ;
Lennartsson, Andreas ;
Engstrom, Fredrik .
JOURNAL OF SUSTAINABLE METALLURGY, 2024, 10 (01) :96-109
[3]   Sonic effervescence: A tutorial on acoustic cavitation [J].
Apfel, RE .
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1997, 101 (03) :1227-1237
[4]   Electronic and elastic properties of brownmillerite [J].
Aretxabaleta, Xabier M. ;
Etxebarria, Inigo ;
Manzano, Hegoi .
MATERIALS RESEARCH EXPRESS, 2020, 7 (01)
[5]   Dissolution Amplification by Resonance and Cavitational Stimulation at Ultrasonic and Megasonic Frequencies [J].
Arnold, Ross A. ;
Dong, Shiqi ;
Tang, Longwen ;
Prentice, Dale ;
Collin, Marie ;
Vega-Vila, Juan Carlos ;
Hernandez, Amaya ;
La Plante, Erika Callagon ;
Ellison, Kirk ;
Kumar, Aditya ;
Srivastava, Samanvaya ;
Bauchy, Mathieu ;
Simonetti, Dante ;
Sant, Gaurav N. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2022, 126 (07) :3432-3442
[6]   Bubbles in an acoustic field: An overview [J].
Ashokkumar, Muthupandian ;
Lee, Judy ;
Kentish, Sandra ;
Grieser, Franz .
ULTRASONICS SONOCHEMISTRY, 2007, 14 (04) :470-475
[7]   The characterization of acoustic cavitation bubbles - An overview [J].
Ashokkumar, Muthupandian .
ULTRASONICS SONOCHEMISTRY, 2011, 18 (04) :864-872
[8]   Elaboration and characterization of the brownmillerite Ca2Fe2O5 synthesized by citrate sol-gel method. Application for photocatalytic H2-Production under visible light over Ca2Fe2O5/ZnO hetero-system [J].
Benallal, S. ;
Boumaza, S. ;
Brahimi, R. ;
Trari, M. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2022, 47 (74) :31877-31887
[9]   On the Bioactivity and Mechanical Properties of Gehlenite Nanobioceramic: A Comparative Study [J].
Bigham, Ashkan ;
Kermani, Saeed ;
Saudi, Ahmad ;
Aghajanian, Amir Hamed ;
Rafienia, Mohammad .
JOURNAL OF MEDICAL SIGNALS & SENSORS, 2020, 10 (02) :105-112
[10]   Numerical simulation on enhancement of natural convection heat transfer by acoustic cavitation in a square enclosure [J].
Cai, Jun ;
Huai, Xiulan ;
Yan, Runsheng ;
Cheng, Yanjun .
APPLIED THERMAL ENGINEERING, 2009, 29 (10) :1973-1982