Anaerobic digestion of kitchen and sewage sludge bio waste to biogas using engineered bio catalysis

Mercy M. Manyuchi, Charles Mbohwa, M. Mpeta, Edison Muzenda

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

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 ratio 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.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalProceedings of the International Conference on Industrial Engineering and Operations Management
Volume2019
Issue numberMAR
Publication statusPublished - 2019
Event9th International Conference on Industrial Engineering and Operations Management, IEOM 2019 - Bangkok, Thailand
Duration: Mar 5 2019Mar 7 2019

All Science Journal Classification (ASJC) codes

  • Strategy and Management
  • Management Science and Operations Research
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

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