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Innovative Designs in Household Biogas Digester in Built Neighbourhoods

In: Anaerobic Digestion in Built Environments

Author

Listed:
  • Isaac Mbir Bryant
  • Martha Osei-Marfo

Abstract

Most household biogas digesters operate on continuous automatic stirring modes. Often, these digesters rely on electrical energy for their continuous operations which are often mesophilic. Rarely do manually-stirred discontinuous household biogas digesters operating on hyper-thermophilic conditions exist. This work seeks to highlight some innovative designs in a household biogas digester piloted in Terterkessim slum in the K.E.E.A. Municipality of the Central Region, Ghana. A pyramidal dome-shape biogas digester was constructed on an abandoned septic tank using blocks and concrete. The digester has a rectangular sub-surface base and a pyramidal gas holder above the surface of the soil. The digester has a two-blade manual stirrer, a ball bearing affixed at the bottom and a handle to manually mix the content of the digester. In order to heat the content of the digester to a hyper-thermophilic condition for hygienising the digestate, a solar-photovoltaic was installed on the roof of a toilet connected to the household biogas digester.

Suggested Citation

  • Isaac Mbir Bryant & Martha Osei-Marfo, 2021. "Innovative Designs in Household Biogas Digester in Built Neighbourhoods," Chapters, in: Anna Sikora (ed.), Anaerobic Digestion in Built Environments, IntechOpen.
    • Handle: RePEc:ito:pchaps:228259
    DOI: 10.5772/intechopen.97210
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    File URL: https://www.intechopen.com/chapters/76104
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    More about this item

    Keywords

    Solar photovoltaic; manual stirrer; hyper-thermophilic; household; biogas digester;
    All these keywords.

    JEL classification:

    • Q53 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Air Pollution; Water Pollution; Noise; Hazardous Waste; Solid Waste; Recycling

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