Treatment of low strength sewage with high suspended organic matter content in an anaerobic sequencing batch reactor and modeling application
Electron. j. biotechnol
;
12(3): 13-14, July 2009. ilus, tab
Artigo
em Inglês
| LILACS
| ID: lil-551891
ABSTRACT
In this work, an anaerobic sequencing batch reactor (ASBR) was operated for 8 months to treat low strength sewage with high suspended organic matter content. Three phases of operation with increasing organic loading rates (OLR) were performed: 0.4 kg COD/m³ x d (phase I), 0 .8 kg COD/m³ x d (phase II) and 1.2 kg COD/m³ x d (phase III). Adequate stability parameters (pH, total alkalinity) were obtained through all three experimental phases. During phases I and II, the removal efficiencies of organic matter (expressed as total chemical oxygen demand (COD) and total suspended solids ranged between 50-60 percent. However, these values decreased to 15-25 percent in phase III. In addition, a non-complex model, including hydrolysis, acidogenesis and methanogenesis, was applied to predict the reactor behavior.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Bactérias Anaeróbias
/
Digestão Anaeróbia
/
Purificação da Água
Tipo de estudo:
Estudo prognóstico
Limite:
Animais
Idioma:
Inglês
Revista:
Electron. j. biotechnol
Assunto da revista:
Biotecnologia
Ano de publicação:
2009
Tipo de documento:
Artigo
/
Documento de projeto
País de afiliação:
Chile
Instituição/País de afiliação:
Pontificia Universidad Católica de Valparaíso/CL
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