Zeolitic tuffs for acid mine drainage (AMD) treatment in Ecuador: breakthrough curves for Mn2+, Cd2+, Cr3+, Zn2+, and Al3+

Buenaño Guerra, Xavier Eduardo and Canoira López, Laureano and Martin Sánchez, Domingo Alfonso and Costafreda Mustelier, Jorge Luis (2017). Zeolitic tuffs for acid mine drainage (AMD) treatment in Ecuador: breakthrough curves for Mn2+, Cd2+, Cr3+, Zn2+, and Al3+. "Environmental Science And Pollution Research" (n. 24); https://doi.org/10.1007/s11356-016-8177-9.

Description

Title: Zeolitic tuffs for acid mine drainage (AMD) treatment in Ecuador: breakthrough curves for Mn2+, Cd2+, Cr3+, Zn2+, and Al3+
Author/s:
  • Buenaño Guerra, Xavier Eduardo
  • Canoira López, Laureano
  • Martin Sánchez, Domingo Alfonso
  • Costafreda Mustelier, Jorge Luis
Item Type: Article
Título de Revista/Publicación: Environmental Science And Pollution Research
Date: 28 March 2017
Subjects:
Faculty: E.T.S.I. de Minas y Energía (UPM)
Department: Ingeniería Geológica y Minera
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Zeolitic tuff constitutes a technical and economical feasible alternative to manage acidic waters in initial phases of generation. A study of cation exchange with two zeolitic tuffs from Ecuador and one from Cuba has been conducted using breakthrough curve methodology. Cations Mn2+, Cd2+, Cr3+,Zn2+, and Al3+ have been chosen owing to their presence in underground water in exploration activities (decline development)in Fruta del Norte (Ecuador). Zeolites characterized by X-ray diffraction and thermal stability after heating overnight as heulandites show a similar exchange behavior for the five cations studied. The clinoptilolite sample Tasajeras shows a relevant cation exchange performance expressed in the important increment of spatial time to reach the breakthrough point in comparison with heulandite samples. The maximum length of unused beds was found for Cr3+ and Zn2+ cations showing,therefore, a lower adsorption performance in relation with Mn2+ and Cd2+. A final disposal method of metal-loaded zeolites with cement is proposed. Keywords Natural zeolites . Acidic mine waters . Cation exchange capacity . Cation saturation curves . Metal-loaded zeolites . Cement pozzolanic additives

More information

Item ID: 63288
DC Identifier: http://oa.upm.es/63288/
OAI Identifier: oai:oa.upm.es:63288
DOI: 10.1007/s11356-016-8177-9
Official URL: https://link.springer.com/article/10.1007/s11356-016-8177-9
Deposited by: Jorge Luis Costafreda Mustelier
Deposited on: 28 Jul 2020 10:28
Last Modified: 28 Jul 2020 10:31
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