Enhanced Biogas Generation from Co-Digestion of Sewage Sludge and Kitchen Bio-Waste

Musaida Mercy Manyuchi, C. Mbohwa, Edison Muzenda, S. O. Masebinu

Research output: Contribution to journalArticlepeer-review


In this study kitchen waste and sewage sludge were co-digested anaerobically to produce biogas with the aid of engineering granules to enhance biogas production. Co-digestion was conducted for mesophilic and thermophilic conditions in a 20L bio digester for a period of 30 days. Hycura was inoculated to enhance biogas production. 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 biogas 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
Original languageEnglish
JournalCovenant Journal of Physical and Life Sciences (Special Edition)
Issue number1
Publication statusPublished - 2018


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