Leachability and fractionation of heavy metals in stainless steelmaking plant dusts

MA Guo-Jun; FAN Wei; XUE Zheng-Liang; YU Wei; TANG Hui

doi:10.11890/1006-7191-104-267

Acta Metallurgica Sinica (English Letters) >

2010 , Vol. 23 >Issue 4: 267 - 276

DOI: https://doi.org/10.11890/1006-7191-104-267

Research paper

Leachability and fractionation of heavy metals in stainless steelmaking plant dusts

MA Guo-Jun ,
FAN Wei ,
XUE Zheng-Liang ,
YU Wei ,
TANG Hui

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Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China

Received date: 2009-12-28

Revised date: 2010-04-20

Online published: 2010-08-11

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Abstract

The leachability and fractionation of the selected heavy metals (Cr, Cd, Pb and Zn) in the stainless steelmaking plant dusts were studied by the modified HJ/T299-2007 method, the modified TCLP test and a seven-step sequential extraction procedure. The results show that the stainless steelmaking plant dusts are considered as hazardous materials since at least one of the leachable heavy metals exceeds the corresponding limit levels of State Environmental Protection Administration of China. Pb is the most extractable heavy metals by the sequential extraction procedure, while Cr, Cd and Zn mainly presents in the residual fraction bound to spinel phase and silicates. The mobile heavy metals in the dusts, which present as the species of water soluble, exchangeable species and the species bounded to carbonates and hydroxides, can be estimated as 0.08-1.2% of Cr, 7.6%-31.8% of Cd, 34.1% of Pb, 0.052-0.4% of Zn, respectively.

Key words： Dust; Heavy metals; Chemical speciation; Stainless steel; Leachability

Cite this article

MA Guo-Jun , FAN Wei , XUE Zheng-Liang , YU Wei , TANG Hui . Leachability and fractionation of heavy metals in stainless steelmaking plant dusts[J]. Acta Metallurgica Sinica (English Letters), 2010 , 23(4) : 267 -276 . DOI: 10.11890/1006-7191-104-267

References

[1] State Environmental Protection Administration People's Republic of China, GB5085.3-2007 (25 April 2007). [2] G. Ma and A.M. Garbers-Craig, J South Afr Inst Min Metall 106(11) (2006) 753. [3] J. Fu, Manage Iron Steel Ind (2) (2008) 56(in Chinese). [4] International Stainless Steel Forum, Stainless and Heat Resisting Steel Crude Steel Production (Ingot/Slab Equivalent).http://www.worldstainless.org/Statistics/Crude/. (16/04/2009). [5] J.F.P. Gomes and C.G. Pinto, Revista de Metaluria 42(6) (2006) 409. [6] A. Tessier, P.G.C. Campbell and M. Bisson, Anal Chem 51(7) (1979) 844. [7] X. Wan, W. Wang, T. Ye, Y. Guo and X. Gao, J Hazardous Mater B134 (2006) 197. [8] X. Shao, G. Xin and W. Hou, Prog Soil Sci 22(3) (1994) 40 (in Chinese). [9] R.W. Leinz, S.J. Sutley, G.A. Desborough and P.H. Briggs, Proc of Fifth Int Conf on Acid Rock Drainage (ICARD 2000) (Denver, Colorado, USA, 2000) p.1489. [10] H. Tian, Beijing Geology 14(2) (2002) 34 (in Chinese). [11] Z. Yang, B. Wang, S. Huang, L. Chai, B. Peng and C. Su, Chin J Nonferrous Met 18(S1) (2008) s372 (in Chinese). [12] F. Liu, J.G. Liu, Q.F. Yu and Y.F. Nie, J Environ Sci 16(6) (2004) 885. [13] G. Laforest and J. Duchesne, J Hazardous Mater B135 (2006) 156. [14] L.M. Shuman, Soil Sci 140 (1985) 11. [15] USEPA. The EPA TCLP: Toxicity Characteristic Leaching Procedure and Characteristic Wastes (D-codes).http://www.ehso.com/cssepa/TCLP (2008). [16] E. Soco and J. Kalembkiewicz, Fuel 88(8) (2009) 1513. [17] R.H. Hanewald and D.E. Dombrowski, Iron Steel Eng (3) (1985) 62. [18] M. Suito and Y. Hara, Kawasaki Steel Giho 32(4) (2000) 312. [19] C.L. Li and M. Tsai, J Mater Sci 28 (1993)4562.

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