Optimization of Poultry Waste Methanization: A Breakthrough for Biogas Production in Benin

Marie-Noël Mansour, from the National Polytechnic Institute of Brittany, has unlocked the scientific barrier of poultry waste methanization, allowing an average production of 930 kg of digestate per ton of methanized waste. This advancement, presented in 2023, opens up prospects for renewable energy in Benin and improves waste management.

Marie-Noël Mansour's thesis addresses the methanization of poultry waste, a crucial issue for agriculture and renewable energy. These often-overlooked wastes represent a significant opportunity to produce biogas. The research focuses on optimizing bioreactors, essential for improving the profitability and efficiency of methanization while overcoming challenges related to inhibitors such as ammonia.

Mansour demonstrates that adequate pretreatments, such as hydrolysis, can overcome the inhibitions caused by ammonia, an essential nutrient but potentially toxic to microorganisms. With this approach, the research has established that it is possible to achieve an average production of 930 kg of digestate per ton of methanized waste, thereby reinforcing the viability of methanization.

The implications of this research are significant for decision-makers and field actors. The methanization of poultry waste represents an opportunity to produce renewable energy while improving waste management. It is recommended to identify pilot projects and explore partnerships with farms to maximize return on investment and minimize risks.

« « Thanks to adequate pretreatments, we were able to achieve an average production of 930 kg of digestate per ton of methanized waste, which significantly improves the profitability of methanization, » says Marie-Noël Mansour. »

« « This thesis illustrates how academic research can transform environmental challenges into economic opportunities, a crucial issue for decision-makers seeking sustainable solutions, » emphasizes the Lektaris team. »