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

Valdes, F; Muñoz E; Chamy, R; Ruiz G.; Vergara C.; Jeison, D

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. © 2006 by Pontificia Universidad Católica de Valparaíso.

Más información

Título según WOS: 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
Título según SCOPUS: 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
Título de la Revista: ELECTRONIC JOURNAL OF BIOTECHNOLOGY
Volumen: 9
Número: 4
Editorial: UNIV CATOLICA DE VALPARAISO
Fecha de publicación: 2006
Página de inicio: 370
Página final: 378
Idioma: English
DOI:

10.2225/vol9-issue4-fulltext-11

Notas: ISI, SCOPUS