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Title:
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ANAEROBIC DIGESTION OF KITCHEN AND SEWAGE SLUDGE BIO WASTE TO BIOGAS USING ENGINEERED BIO CATALYSIS |
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Author(s):
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Mercy M. Manyuchi, Charles Mbohwa, Edison Muzenda |
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ISBN:
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978-989-8533-84-5 |
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Editors:
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Piet Kommers, Tomayess Issa, Theodora Issa, Pedro Isaías and Wendy Hui |
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Year:
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2019 |
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Edition:
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Single |
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Keywords:
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Biogas, Bio-Waste, Co-Digestion, Hycura, Kitchen Waste, Sewage Sludge |
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Type:
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Full Paper |
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First Page:
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121 |
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Last Page:
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128 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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In this study kitchen bio waste and sewage sludge were co-digested anaerobically to produce biogas with the aid of Hycura, engineering granules to enhance bio methane production. Co-digestion was conducted for mesophilic temperatures of 37 °C in a 20 L bio digester for a period of 30 days. Kitchen and sewage sludge were inoculated in the atio 50:50. Hycura was inoculated to enhance biogas production at a loading of 0.05 g/L. The co-digestion resulted in significant degrease of the total volatile solids and chemical oxygen demand of the bio waste by >75%. Mesophilic conditions favored high quality bio methane production with methane content as high as 74%. Inoculation with Hycura hindered H2S production which enhanced the quality of the biogas and makes it easier for upgrading. |
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