Paper Title:
Comparison between Acid Mine Effluents, La Zarza-Perrunal and Río Tinto (Iberian Pyritic Belt)
  Abstract

A 1.2 km long effluent from La Zarza-Perrunal mine (Iberian Pyritic Belt, IPB) was characterized and compared with Río Tinto. In La Zarza effluent microbial oxidation of ferrous iron is responsible for the drastic increase in ferric iron, from a ratio of Fe(III)/Fetotal of 0.11 at the origin, up to 0.99 downstream. Prokaryotic and eukaryotic diversity throughout the effluent were determined. Bacteria related to the sulfur cycle as well as iron-reducing bacteria were mainly detected near the anoxic origin. Iron-oxidizing microorganisms increased along the course of the effluent following an increase in the oxygen content in the water column. Eukaryotic diversity varied drastically along the effluent. Rio Tinto (92 km length) is a natural extreme acidic environment with a rather constant acidic pH (mean pH value 2.3) and a high concentration of heavy metals. The Tinto ecosystem is under the control of iron [1]. The geomicrobiological comparisons of both habitats were performed to unravel some basic questions of biohydrometallurgical interest.

  Info
Periodical
Advanced Materials Research (Volumes 71-73)
Edited by
Edgardo R. Donati, Marisa R. Viera, Eduardo L. Tavani, María A. Giaveno, Teresa L. Lavalle, Patricia A. Chiacchiarini
Pages
113-116
DOI
10.4028/www.scientific.net/AMR.71-73.113
Citation
E. González-Toril, A. Aguilera, V. Souza-Egipsy, M. Diez Ercilla, E. López-Pamo, F.J. Sánchez-España, R. Amils, "Comparison between Acid Mine Effluents, La Zarza-Perrunal and Río Tinto (Iberian Pyritic Belt)", Advanced Materials Research, Vols. 71-73, pp. 113-116, 2009
Online since
May 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Carlos A. Jerez
Abstract:Systems Microbiology is a new way to approach research in microbiology. The idea is to treat the microorganism or community as a whole,...
389
Authors: Pamela Soto, Claudio Meneses, Y. Contador, Pedro A. Galleguillos, Cecilia S. Demergasso, M. Serón
Abstract:In order to explore new options to optimize the low-grade copper ore bioleaching process, it is important to understand the kinetics of...
59
Authors: H.M. Siebert, Thore Rohwerder, Wolfgang Sand, M. Strzodka, K.P. Stahmann
Abstract:The largest lignite mining area in Europe is located 150 km southeast of Berlin. Acidic lakes exist in this area, known to be caused by...
97
Authors: N. Ehrenfeld, Andres Aravena, A. Reyes-Jara, M. Barreto, R. Assar, A. Maass, Pilar Parada Valdecantos
Abstract:Results from a high density microarray having 32,392 50-mer oligonucleotides, termed BMS2.1, were analyzed and used for the design of a new...
155
Authors: Ricardo Amils
Chapter 1: Geomicrobiology, Biogeochemical Cycles, Genetics and Molecular Biology
Abstract:Río Tinto (Iberian Pyrite Belt, SW Spain) is a natural extreme acidic environmentwith a constant acidic pH and high concentration of toxic...
83