Raman spectroscopy of selected arsenates--implications for soil remediation.
The contamination of soils with heavy metals such as As, Cr and Cu is of great importance; the remediation of such soils even more so. Arsenic compounds are prevalent in soils either through leaching of mine tailings, the use of Cu/Cr/As as a wood preservative or through the use of arsenic in cattle dips. The arsenic compounds in soils and leachates can be highly reactive and mobile, resulting in the formation of metal arsenate compounds. Of these compounds, one such set of minerals that can be formed is the vivianite arsenate minerals. Raman spectroscopy has been used to characterise the vivianite arsenates and to identify arsenic contaminants in a soil.
Frost
Ray L
RL
Centre for Instrumental and Developmental Chemistry, Queensland University of Technology, 2 George Street, GPO Box 2434, Brisbane, Qld. 4001, Australia. r.frost@qut.edu.au
Kloprogge
Theo
T
Weier
Matthew L
ML
Martens
Wayde N
WN
Ding
Z
Z
Edwards
Howell G H
HG
D001149:Arsenates / Q000737:chemistry*; D012989:Soil Pollutants; D013059:Spectrum Analysis, Raman
D001149:Arsenates; D012989:Soil Pollutants