Browse > Article
http://dx.doi.org/10.4491/KSEE.2017.39.11.626

Investigation of Water-Washing Process Parameters for Removal of Alkali Metals and Chlorides from Electric Arc Furnace Dust (EAFD)  

Lee, Han Saem (Department of Environmental Engineering, Seoul National University of Science and Technology)
Park, Da so mi (Department of Environmental Engineering, Seoul National University of Science and Technology)
Ha, Jong Gil (Jeongsoo New Technology, Ltd.)
Shin, Hyun Sang (Department of Environmental Engineering, Seoul National University of Science and Technology)
Publication Information
Journal of Korean Society of Environmental Engineers / v.39, no.11, 2017 , pp. 626-633 More about this Journal
Abstract
The present study investigated the effect of a water-washing process, which is part of the acid hydrometallurgical process for recovery of high purity of zinc, on the removal of alkali metals and chlorides (Na, K, Ca, Cl) from Electric arc furnace dust (EAFD). Two EAFD samples with different properties were characterized by particle size, XRD and element analysis, and their washing efficiencies (%) on alkali metals and chlorides were compared according to pH, washing time, liquid to solid (L/S) ratio and number of washings. The results show that the alkali metals and chlorides could be effectively removed by the washing (at L/S ration of 3 for more than 30 min., pH 10~11) while minimizing loss of zinc (<0.1%), in which the washing efficiency was Na-78%, K-76%, Cl >99%, respectively. Na and K could be removed up to 97% and 89% respectively by 3 times of repeated washings. With increased sample volume (10 times) of the mixed (1:1, w/w) sample with two types of EAFD, it was confirmed that the pH(10~11) can be used as the main process control parameter for the washing of the alkali metals regardless of EAFD properties.
Keywords
EAFD; pH; Water-Washing; Alkali Metals; Chlorides;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Montenegro, V., Agatzini-Leonardou, S., Oustadakis, P., Tsakiridis, P., "Hydrometallurgical Treatment of EAF Dust by Direct Sulphuric Acid Leaching at Atmospheric Pressure," Waste and Biomass Valorizat., 7(6), 1531-1548(2016).   DOI
2 Oustadakis, P., Tsakiridis, P. E., Katsiapi, A. and Agatzini-Leonardou, S., "Hydrometallurgical process for zinc recovery from electric arc furnace dust (EAFD): Part I: Characterization and leaching by diluted sulfuric acid," J. Hazard. Mater., 179, 1-7(2010).   DOI
3 Bruckard, W. J., Davey, K. J., Rodopoulos, T., Woodcock, J. T. and Italiano, J., "Water leaching and magnetic separation for decreasing the chloride level and upgrading the zinc content of EAF steelmaking baghouse dusts," Int. J. Mineral Proc., 75, 1-20(2005).   DOI
4 Jha, M. K., Kumar, V. and Singh, R. J., "Review of hydrometallurgical recovery of zinc from industrial wastes," Resour., Conservat. and Recycl., 33, 1-22(2001).   DOI
5 Kukurugya, F., Vindt, T. and Havlik, T., "Behavior of zinc, iron and calcium from electric arc furnace (EAF) dust in hydrometallurgical processing in sulfuric acid solutions: Thermodynamic and kinetic aspects," Hydrometallurgy, 154, 20-32(2015).   DOI
6 Chen, W. S., Shen, Y. H., Tsai, M. S. and Chang, F. C., "Removal of chloride from electric arc furnace dust," J. Hazard. Mater., 190, 639-644(2011).   DOI
7 Wang, Q., Yang, J., Wang, Q. and Wu, T., "Effects of water-washing pretreatment on bioleaching of heavy metals from municipal solid waste incinerator fly ash," J. Hazard. Mater., 162, 812-818(2009).   DOI
8 Zhu, F., Takaoka, M., Oshita, K., Kitajima, Y., Inada, Y., Morisawa, S. and Tsuno, H., "Chlorides behavior in raw fly ash washing experiments," J. Hazard. Mater., 178, 547-552(2010).   DOI
9 Montenegro, V., Oustadakis, P., Tsakiridis, P. E. and Agatzini-Leonardou, S., "Hydrometallurgical treatment of steelmaking Electric Arc Furnace Dusts (EAFD) Metallurg. and Mater. Trans. B, 44B, 1058-1069(2013).
10 Shawabkeh, R. A., "Hydrometallurgical extraction of zinc from Jordanian electric arc furnace dust," Hydrometallurgy, 104, 61-65(2010).   DOI
11 Behnagady, B. and Moghaddam, J., "Selective leaching of zinc from hazardous As-bearing zinc plant purification filter cake," Chem. Eng. Res. and Design., 117, 564-574(2017).   DOI
12 Fernandez-Olmo, I., Lasa, C. and Irabien, A., "Modeling of zinc solubility in stabilized/solidified electric arc furnace dust," J. Hazard. Mater., 144, 720-724(2007).   DOI
13 Guezennec, A. G., Huber, J. C., Patisson, F., Sessiecq, Ph., Birat, J. P. and Ablitzer, D., "Dust formation by bubble-burst phenomenon at the surface of a liquid steel bath," ISIJ Int., 44(8), 1328-1333(2004).   DOI
14 Langova, S. and Matysek, D., "Zinc recovery from steel-making wastes by acid pressure leaching and hematite precipitation," Hydrometallurgy, 101, 171-173(2010).   DOI
15 Havlik, T., Turzakova, M., Stopic, S. and Friedrich, B., "Atmospheric leaching of EAF dust with diluted sulphuric acid," Hydrometallurgy, 77, 41-50(2005).   DOI
16 Laforest, G. and Duchesne, J., "Characterization and leachability of electric arc furnace dust made from remelting of stainless steel," J. Hazard. Mater., B, 135, 156-164(2006).   DOI
17 Langova, S., Le ko, J. and Matysek, D., "Selective leaching of zinc from zonc ferrite with hydrochloric acid," Hydrometallurgy, 95, 179-182(2009).   DOI
18 Martins, F. M., Dos Reis Neto, J. M. and Da Cunha, C. J., "Mineral phases of weathered and recent electric arc furnace dust," J. Hazard. Mater., 154, 417-425(2008).   DOI
19 Lutandula, M. S. and Kashala, G. N., "Zinc oxide production through reprocessing of the electric arc furnace flue dusts," J. Environ. Chem. Eng., 1, 600-603(2013).   DOI
20 Machado, J. G. M. S., Brehm, F. A., Moraes, C. A. M., Dos Santos, C. A., Vilela, A. C. F. and Da Cunha, J. B. M., "Chemical, physical, structural and morphological characterization of the electric arc furnace dust," J. Hazard. Mater. B, 136, 953-960(2006).   DOI
21 Sekula, R., Selinger, M., Wnek, M. and Wrobel, M., "Electric arc furnace dust treatment: investigation on mechanical and magnetic separation methods," Waste Manage. and Res., 19, 271-275(2001).   DOI
22 Sofiliae, T., Rastovean-Mioe, A., Cerjan-Stefanoviae, S., Novosel-Radoviae, V. and Jenko, M., "Characterization of steel mill electric arc furnace dust," J. Hazard. Mater., B, 109, 59-70(2004).   DOI
23 Leclerc, N., Meux, E. and Lecuire, J. M., "Hydrometallurgical extraction of zinc from zinc ferrites," Hydrometallurgy, 70, 175-183(2003).   DOI
24 Tsakiridis, P. E., Oustadakis, P., Katsiapi, A. and Agatzini-Leonardou, S., "Hydrometallurgical process for zinc recovery from electric arc furnace dust (EAFD). Part II: Downstream processing and zinc recovery by electrowinning," J. Hazard. Mater., 179, 8-14(2010).   DOI