Valorization of electromechanical waste in biodigesters and Pyrolyzers for sustainable management of organic waste

The management of electromechanical waste in Niger represents a major challenge for environmental protection and socio-economic development. This innovative work proposes to utilize readily available electromechanical waste to construct multifunctional pyrolyzers and pyrolyzers, as well as hybrid systems for combined heat and power (CHP) generation. The biodigesters and pyrolyzers will be used to produce bioenergy (biogas, green charcoal) and biofertilizers (compost and biochar) from organic waste and invasive plant species. This work will enable effective waste management in general, which currently poses a challenge for local authorities, while simultaneously developing the renewable energy and biofertilizer production sectors, contributing to pollution reduction, and improving the living conditions of local populations.This project is part of a broader energy transition and land restoration initiative in Niger, combining technological innovation, social impact, and environmental responsibility. Through the construction and installation of biogas digesters and pyrolyzers adapted to the local context, each community or household will have the capacity to harness the energy and fertilizing potential of organic waste and proliferating plants. The biogas produced will be used to promote green cooking, a more ecological alternative to traditional fuels. Furthermore, this renewable energy will also be used for electricity generation, meeting the energy needs of communities and families while reducing their dependence on non-renewable energy sources. The biofertilizers (digestates and biochars) resulting from the operation of the innovative biodigesters and pyrolyzers will be used to fertilize cultivated and degraded land.This article combines proven technological solutions with participatory approaches, engaging local communities in the process of collecting and managing electromechanical and organic waste. It aims to reduce greenhouse gas emissions, create sustainable jobs, and strengthen the region's resilience to energy and climate challenges.
Expected results include improved air quality, reduced greenhouse gas (GHG) emissions, and increased awareness of best practices in urban waste management.