Effect of sulphate concentration and sulphide desorption on the combined removal of organic matter and sulphate from wastewaters using expanded granular sludge bed (EGSB) reactors

Freddy Valdés, Edmundo Muñoz, Rolando Chamy, Gonzalo Ruiz, Christian Vergara, David Jeison

Resultado de la investigación: Article

5 Citas (Scopus)

Resumen

During the application of anaerobic processes to high sulphate concentration wastewaters, operational problems are expected due to the occurrence of sulphate reduction. Sulphide production reduces effluent quality and may produce inhibition. The application of Expanded Granular Sludge Bed (EGSB) reactors for the combined removal of organic matter and sulphate was studied at different COD/sulphate and 3 values of pH. During the EGSB reactor operation, most of the sulphide remains in the liquid phase reducing effluent quality. The inclusion of a desorption column in the recirculation of the EGSB reactor promotes mass transfer to the gas phase, reducing the sulphide concentration in the liquid phase, significantly decreasing the chemical oxygen demand of the effluent.

Idioma originalEnglish
Páginas (desde-hasta)1-9
Número de páginas9
PublicaciónElectronic Journal of Biotechnology
Volumen9
N.º4
DOI
EstadoPublished - 15 jul 2006

Huella dactilar

Sulfuric Acid Esters
Sulfides
Waste Water
Sewage
Biological materials
Sulfates
Desorption
Wastewater
Effluents
Biological Oxygen Demand Analysis
Reactor operation
Chemical oxygen demand
Liquids
Gases
Mass transfer

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Applied Microbiology and Biotechnology

Citar esto

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abstract = "During the application of anaerobic processes to high sulphate concentration wastewaters, operational problems are expected due to the occurrence of sulphate reduction. Sulphide production reduces effluent quality and may produce inhibition. The application of Expanded Granular Sludge Bed (EGSB) reactors for the combined removal of organic matter and sulphate was studied at different COD/sulphate and 3 values of pH. During the EGSB reactor operation, most of the sulphide remains in the liquid phase reducing effluent quality. The inclusion of a desorption column in the recirculation of the EGSB reactor promotes mass transfer to the gas phase, reducing the sulphide concentration in the liquid phase, significantly decreasing the chemical oxygen demand of the effluent.",
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Effect of sulphate concentration and sulphide desorption on the combined removal of organic matter and sulphate from wastewaters using expanded granular sludge bed (EGSB) reactors. / Valdés, Freddy; Muñoz, Edmundo; Chamy, Rolando; Ruiz, Gonzalo; Vergara, Christian; Jeison, David.

En: Electronic Journal of Biotechnology, Vol. 9, N.º 4, 15.07.2006, p. 1-9.

Resultado de la investigación: Article

TY - JOUR

T1 - Effect of sulphate concentration and sulphide desorption on the combined removal of organic matter and sulphate from wastewaters using expanded granular sludge bed (EGSB) reactors

AU - Valdés, Freddy

AU - Muñoz, Edmundo

AU - Chamy, Rolando

AU - Ruiz, Gonzalo

AU - Vergara, Christian

AU - Jeison, David

PY - 2006/7/15

Y1 - 2006/7/15

N2 - During the application of anaerobic processes to high sulphate concentration wastewaters, operational problems are expected due to the occurrence of sulphate reduction. Sulphide production reduces effluent quality and may produce inhibition. The application of Expanded Granular Sludge Bed (EGSB) reactors for the combined removal of organic matter and sulphate was studied at different COD/sulphate and 3 values of pH. During the EGSB reactor operation, most of the sulphide remains in the liquid phase reducing effluent quality. The inclusion of a desorption column in the recirculation of the EGSB reactor promotes mass transfer to the gas phase, reducing the sulphide concentration in the liquid phase, significantly decreasing the chemical oxygen demand of the effluent.

AB - During the application of anaerobic processes to high sulphate concentration wastewaters, operational problems are expected due to the occurrence of sulphate reduction. Sulphide production reduces effluent quality and may produce inhibition. The application of Expanded Granular Sludge Bed (EGSB) reactors for the combined removal of organic matter and sulphate was studied at different COD/sulphate and 3 values of pH. During the EGSB reactor operation, most of the sulphide remains in the liquid phase reducing effluent quality. The inclusion of a desorption column in the recirculation of the EGSB reactor promotes mass transfer to the gas phase, reducing the sulphide concentration in the liquid phase, significantly decreasing the chemical oxygen demand of the effluent.

KW - Anaerobic digestion

KW - EGSB

KW - Sulphate reduction

KW - Sulphide

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U2 - 10.2225/vol9-issue4-fulltext-11

DO - 10.2225/vol9-issue4-fulltext-11

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JO - Electronic Journal of Biotechnology

JF - Electronic Journal of Biotechnology

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