New preservation method for inorganic arsenic speciation in acid mine drainage samples

Talanta ◽  
2006 ◽  
Vol 69 (5) ◽  
pp. 1182-1189 ◽  
Author(s):  
V. Oliveira ◽  
A.M. Sarmiento ◽  
J.L. Gómez-Ariza ◽  
J.M. Nieto ◽  
D. Sánchez-Rodas
2016 ◽  
Vol 8 (40) ◽  
pp. 7420-7426 ◽  
Author(s):  
Resongles E. ◽  
Le Pape P. ◽  
Fernandez-Rojo L. ◽  
Morin G. ◽  
Delpoux S. ◽  
...  

As(iii)/As(v) ratio determined from orthophosphoric acid extraction/HPLC-ICP-MS matched XANES results, allowing routine measurement of As oxidation state in acid mine drainage precipitates.


2022 ◽  
Vol 962 (1) ◽  
pp. 012050
Author(s):  
N F Fetisova

Abstract Acid mine drainage (AMD) of the abandoned coal mines of the Kizelovsky coal basin (the Urals, Russia) is one of the worst natural disasters in the region. Acidic sulphate waters with a high content of metals freely flow into the surface water bodies. Arsenic, found in elevated concentrations in AMD, is an element of concern due to its potential toxicity to humans and animals. The aim of this work is determination of chemical speciation of inorganic arsenic in AMD as well as the surface water and groundwater affected by mine drainage, and assessment the natural removal of As from mine drainage due to adsorption on precipitated hydrous ferric oxide (HFO). Geochemical speciation (PHREEQC) revealed that arsenic occurs in all water samples as As(V). Surface complexation model shows that, HFO induced by the natural attenuation process may remove 46–85% of total arsenic in AMD and only 28% in polluted groundwater (on average).


Chemosphere ◽  
2007 ◽  
Vol 66 (4) ◽  
pp. 677-683 ◽  
Author(s):  
Aguasanta M. Sarmiento ◽  
Vanessa Oliveira ◽  
José Luis Gómez-Ariza ◽  
José Miguel Nieto ◽  
Daniel Sánchez-Rodas

2006 ◽  
Vol 384 (7-8) ◽  
pp. 1594-1599 ◽  
Author(s):  
Daniel Sánchez-Rodas ◽  
Vanesa Oliveira ◽  
Aguasanta M. Sarmiento ◽  
José Luis Gómez-Ariza ◽  
José Miguel Nieto

2002 ◽  
Vol 36 (10) ◽  
pp. 2213-2218 ◽  
Author(s):  
A. J. Bednar ◽  
J. R. Garbarino ◽  
J. F. Ranville ◽  
T. R. Wildeman

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