Artículos de revistas
Evaluation of stability factors in the anaerobic trament of Slaughterhouse wastwater
Autor
ALBERTO LOPEZ LOPEZ
JUAN GALLARDO VALDEZ
EDITH PADILLA GASCA
Institución
Resumen
The main environmental factors that assured the stability of an anaerobic batch reactor for the treatment of
slaughterhouse wastewater were evaluated. The reactor was inoculated with anaerobic sludge from a distillery
wastewater treatment plant. The volume of produced CH4 was proportional to the quantity of organic matter removed
matter (measured as Chemical Oxygen Demand, COD). The overall organic matter removal was 75%. The acetic,
propionic and butyric acids concentration profiles were similar, where acetic acid had the highest concentration
throughout the study period. The response time recorded between the acetogenic and methanogenic stages in this
study was two days. The process showed an elevated acidogenic activity of 1.62 g of VFA/g of COD removed and
a high Methane Production Rate (MPR) of about 450 ml of CH4/g of COD removed. The anaerobic treatment of
slaughterhouse wastewater generated a buffer system which produced sufficient alkalinity to neutralize the effects
of Volatile Fatty Acids (VFA) generated during the process.