Microscale Investigation of Arsenic Distribution and Species in Cement Product from Cement Kiln Coprocessing Wastes
Joint Authors
Yang, Yufei
Xue, Jingchuan
Huang, Qifei
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-07
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
To improve the understanding of the immobilization mechanism and the leaching risk of Arsenic (As) in the cement product from coprocessing wastes using cement kiln, distribution and species of As in cement product were determined by microscale investigation methods, including electron probe microanalysis (EPMA) and X-ray absorption spectroscopy.
In this study, sodium arsenate crystals (Na3AsO412H2O) were mixed with cement production raw materials and calcined to produce cement clinker.
Then, clinker was mixed water to prepare cement paste.
EPMA results showed that As was generally distributed throughout the cement paste.
As content in calcium silicate hydrates gel (C-S-H) was in low level, but higher than that in other cement mineral phases.
This means that most of As is expected to form some compounds that disperse on the surfaces of cement mineral phases.
Linear combination fitting (LCF) of the X-ray absorption near edge structure spectra revealed that As in the cement paste was predominantly As(V) and mainly existed as Mg3(AsO4)2, Ca3(AsO4)2, and Na2HAsO4.
American Psychological Association (APA)
Yang, Yufei& Xue, Jingchuan& Huang, Qifei. 2013. Microscale Investigation of Arsenic Distribution and Species in Cement Product from Cement Kiln Coprocessing Wastes. The Scientific World Journal،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-1012456
Modern Language Association (MLA)
Yang, Yufei…[et al.]. Microscale Investigation of Arsenic Distribution and Species in Cement Product from Cement Kiln Coprocessing Wastes. The Scientific World Journal No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-1012456
American Medical Association (AMA)
Yang, Yufei& Xue, Jingchuan& Huang, Qifei. Microscale Investigation of Arsenic Distribution and Species in Cement Product from Cement Kiln Coprocessing Wastes. The Scientific World Journal. 2013. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-1012456
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1012456