Biogas in the Circular Economy : Technology, Production, and Applications

• Presents advanced and sustainable approaches to digestate management for biogas production
• Describes the latest technologies in biogas separation and purification as part of the circular economy
• Explores biomethane and biohydrogen in the context of transport, power production, and the water-energy-food nexus
• Addresses carbon neutrality challenges, lifecycle assessment, and cost-benefit analysis

Prof. Hassan El Bari is a full professor at Ibn Tofail University, in Morocco. He has a PhD in Material Sciences from INPL (France) and a "Doctorat d’Etat" in Mechanical Engineering from the University Mohamed V-Morocco. Prof. El Bari is the President of the Moroccan Association of Solid Waste. He was Master Degree Coordinator for Waste Management (2010–2014) and has a long experience in teaching subjects related to waste management, bioenergy, and biogas technology. He has also been involved in many funded projects as a coordinator and partner. Prof. El Bari is an Associate Editor for the Cleaner Waste Systems Journal (Elsevier) and for Applied Science and Engineering Progress. He is co-editor of the books “Ecological Sustainable Waste Management―Energetic Utilization of Organic Waste” (2018), "Waste Management in Developing Countries” (2023), and “Biogas in the Circular Economy: Technology, Production, and Applications” (2025).

Abdellatif Barakat is a Director Researcher in bioprocess engineering and valorization of biomass at UMR IATE, INRAE, Montpellier University (Montpellier Agro Institute), in France. He is also affiliated with CAES, University Mohammed VI Polytechnic (UM6P), Benguérir, Morocco. He received his PhD in chemistry and physicochemical of biopolymers from Reims University, France. He has published over 150 papers in international journals, 4 patents, and 6 book chapters.