Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/44223
Title: Multivariate factorial analysis to design a robust batch leaching test to assess the volcanic ash geochemical hazard
Authors: Ruggieri, Flavia
Gil, Raúl A.
Fernandez-Turiel, Jose Luis
Saavedra, Julio
Gimeno, Domingo
Lobo, Agustin
Martinez, Luis D.
Rodriguez-Gonzalez, Alejandro 
UNESCO Clasification: 250621 Vulcanología
2503 Geoquímica
Keywords: Volcanic ash
Batch leaching
Mixed factorial design
Issue Date: 2012
Publisher: 0304-3894
Journal: Journal of Hazardous Materials 
Abstract: A method to obtain robust information on short term leaching behaviour of volcanic ashes has been developed independently on the sample age. A mixed factorial design (MFD) was employed as a multivariate strategy for the evaluation of the effects of selected control factors and their interactions (amount of sample (A), contact time (B), and liquid to solid ratio or L/S (C)) on the leaching process of selected metals (Na, K, Mg, Ca, Si, Al, V, Mn, Fe, and Co) and anions (Cl− and SO42−). Box plots of the data acquired were used to evaluate the reproducibility achieved at different experimental conditions. Both the amount of sample (A) and leaching time (B) had a significant effect on the element stripping whereas the L/S ratio influenced only few elements. The lowest dispersion values have been observed when 1.0 g was leached with an L/S ratio equal to 10, shaking during 4 h. The entire method is completed within few hours, and it is simple, feasible and reliable in laboratory conditions.
URI: http://hdl.handle.net/10553/44223
ISSN: 0304-3894
DOI: 10.1016/j.jhazmat.2012.01.091
Source: Journal of Hazardous Materials [ISSN 0304-3894], v. 213-214, p. 273-284
Appears in Collections:Artículos
Show full item record

SCOPUSTM   
Citations

12
checked on Jul 25, 2021

WEB OF SCIENCETM
Citations

11
checked on Jul 25, 2021

Page view(s)

15
checked on Jun 26, 2021

Google ScholarTM

Check

Altmetric


Share



Export metadata



Items in accedaCRIS are protected by copyright, with all rights reserved, unless otherwise indicated.