A geochemistry study of arsenic speciation in overburden from Mae Moh Lignite Mine, Lampang, Thailand
Journal article
Authors/Editors
Strategic Research Themes
No matching items found.
Publication Details
Author list: Wongyai K., Garivait S., Donald O.
Publisher: Springer
Publication year: 2013
Journal: Environmental Earth Sciences (1866-6280)
Volume number: 70
Issue number: 5
Start page: 2047
End page: 2053
Number of pages: 7
ISSN: 1866-6280
eISSN: 1866-6299
Languages: English-Great Britain (EN-GB)
View in Web of Science | View on publisher site | View citing articles in Web of Science
Abstract
The aim of this study was to investigate the geochemical characteristics of arsenic in the solid material samples of the Mae Moh Mine and also the Mae Moh power plants fly ash samples were systematically studied. Arsenic concentration in overburden, coal lignite and fly ash are variable (depending on source of solid samples). The results show that the strata of overburden, J seam of coal and fly ash are rich in arsenic and also relatively soluble from fly ash; it occurs as a surface precipitate on the ash particle. The experimental study on speciation in the strata also indicates that the arsenic speciation of Mae Moh solid samples are mainly arsenate, As (V), which are approaching exceed 80%. Arsenic content in the main of overburden is in the range of 14.3-888.8 mg/kg, which is larger than the arsenic background soil values. Solid materials polluted wastewater; the arsenic speciation was present predominantly as arsenate in the surface water of a series of Mae Moh solid materials basins. ฉ 2010 Springer-Verlag.
Keywords
Arsenic, Lignite, Mae Moh Mine, Mine drainage, Overburden, Trace elements
Contact Information