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Subproductos en la depuración de aguas ácidas de minería y empleo de residuos orgánicos como fuente carbonada (Parte II) = Subsproducts from a depurative process of acid mine water with residues used as carbon source (Part II)

 

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Opened Access Subproductos en la depuración de aguas ácidas de minería y empleo de residuos orgánicos como fuente carbonada (Parte II) = Subsproducts from a depurative process of acid mine water with residues used as carbon source (Part II)
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Author: Durán-Barrantes, María de la Montaña
Jiménez-Rodríguez, Antonia Mercedes
Martel-Villagrán, F. J.
Coordinator/Director: Álvarez-Mateos, María Paloma
Department: Universidad de Sevilla. Departamento de Ingeniería Química
Date: 2004
Published in: Tecnología del Agua, 245, 60-65.
Document type: Article
Abstract: En el proceso biológico anaerobio de reducción de los sulfatos de las aguas ácidas de minería del rio Tinto mediante la utilización de bacterias sulfato-reductoras, se genera una alcalinidad que compensa la acidez que aporta el influente y se emplea...
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The biological depurative process of acid mine water reducing sulphate concentration from Tinto river produces the alkalinity needed for the selective precipitation of Fe, Cu, Zn and Al. But a suitable carbon source for the working conditions of microorganisms to reduce sulphates is needed. In this work, the results obtained using urban sewage as a carbon source are presented. The optimal conditions obtained are: 65.5% of sulphate reduction in HRT of 10 days for a SO₄ ̿ : COD of 1:1, and 580 mg HS/L in the reactor effluent. In the precipitation of metals, a reduction of 77.6% of Fe, 88.6% of Cu, 70.7% of Zn and 71.5% of Al, are obtained depending on the essay applied. Ayesa is developing the technical attendance. This study is being demostrated under the Acid Water Treatment Program, conducted by Consejería del Medio Ambiente (Junta de Andalucía)
Cite: Durán-Barrantes, M.d.l.M., Jiménez-Rodríguez, A.M. y Martel-Villagrán, F.J. (2004). Subproductos en la depuración de aguas ácidas de minería y empleo de residuos orgánicos como fuente carbonada (Parte II) = Subsproducts from a depurative process of acid mine water with residues used as carbon source (Part II). Tecnología del Agua, 245, 60-65.
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URI: http://hdl.handle.net/11441/45039

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