Effect of low temperature thermal pre-treatment on the solubilization of organic matter, pathogen inactivation and mesophilic anaerobic digestion of poultry sludge
作者： Juan E. Ruiz-Espinoza , Juan M. Méndez-Contreras , Alejandro Alvarado-Lassman , Sergio A. Martínez-Delgadillo
DOI: 10.1080/10934529.2012.689237
关键词: Chemistry 、 Anaerobic digestion 、 Waste management 、 Hydraulic retention time 、 Organic matter 、 Mesophile 、 Microorganism 、 Food science 、 Sewage 、 Bacteria 、 Effluent
摘要: Treatment of poultry industry effluents produces wastewater sludge with high levels organic compounds and pathogenic microorganisms. In this research, the thermal pre-treatment slaughterhouse (PSS) was evaluated for low temperatures in combination different exposure times as a pre-hydrolysis strategy to improve anaerobic digestion process. Organic solubilization inactivation microorganisms were after treatment at 70, 80 or 90°C 30, 60 90 min. The results showed that min most efficient conditions (10%). addition, bacteria populations more resistant structures, such helminth eggs (HE), completely inactivated. Finally, applied increased methane yield by 52% reduced hydraulic retention time (HRT) 52%.
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