New Challenges of Anaerobic Digestion for Bioproducts and Bioenergy Production

Dear Colleagues,

Anaerobic digestion (AD) has long been recognized as a key technology for the sustainable management of organic wastes and the production of renewable energy in the form of biogas. However, the global transition towards the circular bioeconomy and carbon neutrality introduces new challenges and opportunities for AD systems. In this context, AD is increasingly expected to go beyond simple energy recovery and instead become a versatile biorefinery platform capable of producing a wide range of bioproducts such as organic acids, biohydrogen, biomethane, and nutrient-rich biofertilizers.

In this Special Issue, we aim to gather innovative research and comprehensive reviews addressing the latest scientific and technological advances in anaerobic digestion for bioproducts and bioenergy production. Topics of interest include, but are not limited to, the following:

• Optimization, modeling, and control of AD processes for enhanced biogas yield and stability;
• Sanitary concerns of anaerobic digestion for bioenergy production;
• Process intensification (e.g., pretreatment, DIET) and reactor design of AD systems;
• Post-treatment and energy valorisation of digestate, and integration of biogas into the circular bioeconomy
• Coupling AD with other technologies (e.g., nutriment recovery, gas upgrading and transformation, CO
• Assessment of environmental, energetic, and economic performance of AD-based systems.

We particularly welcome interdisciplinary contributions that propose novel approaches to improving the efficiency, robustness, and sustainability of anaerobic digestion, as well as contributions that explore AD’s role in the broader context of resource recovery and climate change mitigation.

Dr. Xiaojun Liu
Guest Editor

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