publication . Article . 2013

Efeitos do início da digestão anaeróbica da camada de esterco de aves à pressão sub-atmosférica

Chima C. Ngumah; Jude N. Ogbulie; Justina C. Orji; Ekperechi S. Amadi;
Open Access English
  • Published: 01 Dec 2013
  • Publisher: Instituto de Pesquisas Ambientais em Bacias Hidrográficas
This study investigated the effects of initiating anaerobic digestion (AD) of dry layer-hen poultry dung at the sub-atmospheric pressure of -30 cmHg on biodegradation, biogasification, and biomethanation. The setup was performed as a batch process at an average ambient temperature of 29±2 ºC and a retention time of 15 days. Comparisons were made with two other experiments which were both begun at ambient atmospheric pressure; one was inoculated with digestate from a previous layer-hen dung AD, while the other was not inoculated. The bioreactors initiated at sub-atmospheric pressure, ambient atmospheric pressure without inoculum, and ambient atmospheric pressure ...
free text keywords: alternative energy, biofuel, waste management, energia alternativa, os biocombustíveis, gestão de resíduos, Environmental sciences, GE1-350, Public Health, Environmental and Occupational Health, Aquatic Science, General Environmental Science, Carbon dioxide, chemistry.chemical_compound, chemistry, Bioreactor, Environmental engineering, Total Viable Count, Biodegradation, Digestate, Atmospheric pressure, Anaerobic digestion, Biogas, Biology
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