Chemical Speciation of Heavy Metals in Stainless Steel Plant Dust

被引：0
|
作者：
Ma, Guojun [1 ]
Fan, Wei [1 ]
Tang, Hui [1 ]
Wang, Wei [1 ]
Su, Weihou [1 ]
机构：
[1] Wuhan Univ Sci & Technol, Minist Educ, Key Lab Ferrous Met & Resources Utilizat, Wuhan, Peoples R China
来源：
2010 4TH INTERNATIONAL CONFERENCE ON BIOINFORMATICS AND BIOMEDICAL ENGINEERING (ICBBE 2010) | 2010年
基金：
中国国家自然科学基金;
关键词：
Stainless steel plant dust; heavy metals; chemical speciation; electric arc furnace; SEQUENTIAL EXTRACTION PROCEDURE; LEACHABILITY;
D O I：
暂无
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
The leaching tests and the sequential extraction procedure of heavy metals in the stainless steel plant dusts were studied. The results show that the total Cr and Cr (VI) content in argon oxygen decarburization converter dust (AODD), and the concentrations of Cd and Zn in electric arc furnace dust (EAFD) exceed the national standards. Lead is the most extractable element by the sequential extraction procedure with the extractable ratio of 82.8% and 94.9% in EAFD and AODD, respectively, while chromium presents mainly in the residual fraction (approximately 97.1% and 94.6% in the EAFD and AODD, separately). Moreover, the mobile heavy metals in the stainless steel plant dusts can be estimated as following: 31.8% of Cd in EAFD and 7.6% of Cd in AODD, 34.1% of Pb in EAFD and 34.1% of Pb in AODD, 0.4% of Zn in EAFD and 0.052% of Zn in AODD, and 0.08% of Cr in EAFD and 1.2% of Cr in AODD.
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页数：4
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