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
Article
in English
| 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.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Bacteria, Anaerobic
/
Anaerobic Digestion
/
Water Purification
Type of study:
Prognostic study
Limits:
Animals
Language:
English
Journal:
Electron. j. biotechnol
Journal subject:
Biotechnology
Year:
2009
Type:
Article
/
Project document
Affiliation country:
Chile
Institution/Affiliation country:
Pontificia Universidad Católica de Valparaíso/CL
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