Biomethane and Green Hydrogen Production Potential from Municipal Solid Waste :: In Cape Coast, Ghana.

Isiaka  Alani; Milohum Mikesokpo DZAGLI; Damgou  Mani Kongnine; Satyanarayana  Narra; Zipporah  Asiedu

doi:10.51646/jsesd.v13i2.204

Authors

Isiaka Alani West African Service Center for Climate Change and Adaptive Land Use (WASCAL), University of Lomé, Lomé, 01 BP 1515, Lomé1, Togo
Milohum Mikesokpo DZAGLI 2Laboratoire de Physique des Matériaux et Composants à Semi-conducteurs, University of Lomé, Lomé, 01 BP 1515, Lomé1, Togo 3Regional Centre of Excellence on Electricity Management (CERME), University of Lomé, Lomé, 01 BP 1515, Lomé1, Togo
Damgou Mani Kongnine West African Service Center for Climate Change and Adaptive Land Use (WASCAL), University of Lomé, Lomé, 01 BP 1515, Lomé1, Togo, Regional Centre of Excellence on Electricity Management (CERME), University of Lomé, Lomé, 01 BP 1515, Lomé1, Togo
Satyanarayana Narra Department of Waste and Resource Management, University of Rostock, 18059 Rostock, Germany, German Biomass Research Centre gGmbH, 04347 Leipzig, Germany
Zipporah Asiedu Department of Waste and Resource Management, University of Rostock, 18059 Rostock, Germany

DOI:

https://doi.org/10.51646/jsesd.v13i2.204

Keywords:

Biomethane, municipal solid waste, food waste management, green hydrogen, pollutant emissions, renewable energy.

Abstract

Biomethane and hydrogen are promising elements in the transition towards sustainable energy, due to their capacity to mitigate greenhouse gas emissions. In Ghana, efforts to promote sustainable waste valorization for energy production are underway; however, organic waste conversion into biomethane and hydrogen still needs to be expanded. This study aims to evaluate the potential of producing biomethane and hydrogen from the municipal solid waste in Cape Coast, and their injection into the national gas grid. The upgrading biogas obtained from anaerobic digestion of food/organic wastes was used to generate biomethane. The modified Buswell Equation and data from literature were used to estimate the amount of biomethane and hydrogen. The environmental impact was assessed using the CO₂ equivalent emissions. The findings reveal that Cape Coast generated approximately 6,400 tons of food waste in 2021, with a projection to 11,000 tons by 2050. Biomethane and hydrogen quantities was estimated at 3,700,000 m³ and 784,000 kg in 2021, respectively. Their projection reaches to 6,600,000 m³ and 1,400,000 kg by 2050. Converting waste into biomethane and hydrogen is an eco-friendly method of their management and use for renewable energy in Ghana. Strategies can be integrated into Ghana national energy policies to encourage waste-to-energy projects.

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