Vinay Kumar Tyagi is a Scientist D at the Environmental Hydrology Division, National Institute of Hydrology, Roorkee, India. His research interests include anaerobic digestion, energy-efficient wastewater treatment systems, sludge management, and advanced biomass pretreatment methods. He has over 100 publications to his credit, including full-text books, over 40 book chapters and manuals. Dr. Tyagi is a Fellow and Life Member of several professional bodies and organizations. He is a Management Committee Member of the International Water Association (IWA) Sludge Management Specialist Group and represents the South Asia Division, and also the Anaerobic Digestion Specialist Group. Dr. Tyagi has extensive international research exposure and collaborations in Norway, Taiwan, Spain, Japan, and Singapore in various environmental research domains of wastewater treatment, sludge pretreatment, and biomass to bioenergy recovery. Dr. Kaoutar Aboudi is a substitute lecturer in the Department of Chemical Engineering and Food Technology at the University of Cádiz (Spain), where she is a senior researcher in the Applied Bioprocess Engineering research group. Her central research areas include biomass to bioenergy and value-added product recovery through anaerobic digestion and fermentation processes. She has been working on technologies related to biohythane production for 15 years. Dr. Aboudi has co-edited 2 full books and has co-authored 12 book chapters and 20 peer-reviewed papers published in recognized journals. She has participated in over 19 international conferences worldwide and has been a member of several research projects related to biomass valorization. She previously completed postdoctoral research at the IMDEA-Energy Institute in Madrid (Spain) and international internships at Delft University of Technology (the Netherlands) and the New University of Lisbon (Portugal). She has successfully supervised BSc degree students in Chemical Engineering and Biotechnology.

• 1. State of the art of energy production from agricultural residues using thermochemical and biological processes2. Valorising agricultural residues as biorefinery feedstocks: current advancements and challenges3. Status and perspectives of agricultural residues in a circular and resource efficient context4. Anaerobic co-digestion with fruit and vegetable wastes: An opportunity to enhance the sustainability and circular economy of the WWTP digesters5. Self-Sustainability of Anaerobic Digestion for Conversion of Water Hyacinth into Value Added Bio-Fuels6. Production of High Value-Added Amino Acids and Biofuels (H2&CH4) from Gelatinous Industry Wastewater Via Anaerobic Bio-Degradation Process7. Bio-methanization of agricultural lignocellulosic wastes: Pretreatments8. Occurrence and Fate of Recalcitrant in Anaerobic Treatment of Wastewater and Organic9. Direct interspecies electron transfer (DIET) via conductive materials in anaerobic digestion of organic wastes10. Anaerobic digestion of bioplastics11. Kinetics models of Methane production from anaerobic digestion12. Using Black Soldier Fly for Waste Management in Developing Countries13. Resource recovery and circular economy approach in organic waste management using hydrothermal carbonization14. Resource recovery from food waste via biological processes15. Integral valorization of residual biomass: Hydrogen, polyhydroxyalkanoates, and compost production16. Thermal hydrolysis sludge pre-treatment17. Sustainable bio-waste recycling using insects18. Butanol production from algal biomass by ABE fermentation proces19. Polyhydroxyalkanoates production from algal biomass20. Use of membrane technologies to recover microalgae biomass produced in wastewater21. Black soldier fly biorefinery: A novel upcycling route for municipal biosolids

Vinay Kumar Tyagi is a Scientist D at the Environmental Hydrology Division, National Institute of Hydrology, Roorkee, India. His research interests include anaerobic digestion, energy-efficient wastewater treatment systems, sludge management, and advanced biomass pretreatment methods. He has over 100 publications to his credit, including full-text books, over 40 book chapters and manuals. Dr. Tyagi is a Fellow and Life Member of several professional bodies and organizations. He is a Management Committee Member of the International Water Association (IWA) Sludge Management Specialist Group and represents the South Asia Division, and also the Anaerobic Digestion Specialist Group. Dr. Tyagi has extensive international research exposure and collaborations in Norway, Taiwan, Spain, Japan, and Singapore in various environmental research domains of wastewater treatment, sludge pretreatment, and biomass to bioenergy recovery. Dr. Kaoutar Aboudi is a substitute lecturer in the Department of Chemical Engineering and Food Technology at the University of Cádiz (Spain), where she is a senior researcher in the Applied Bioprocess Engineering research group. Her central research areas include biomass to bioenergy and value-added product recovery through anaerobic digestion and fermentation processes. She has been working on technologies related to biohythane production for 15 years. Dr. Aboudi has co-edited 2 full books and has co-authored 12 book chapters and 20 peer-reviewed papers published in recognized journals. She has participated in over 19 international conferences worldwide and has been a member of several research projects related to biomass valorization. She previously completed postdoctoral research at the IMDEA-Energy Institute in Madrid (Spain) and international internships at Delft University of Technology (the Netherlands) and the New University of Lisbon (Portugal). She has successfully supervised BSc degree students in Chemical Engineering and Biotechnology.

• 1. State of the art of energy production from agricultural residues using thermochemical and biological processes2. Valorising agricultural residues as biorefinery feedstocks: current advancements and challenges3. Status and perspectives of agricultural residues in a circular and resource efficient context4. Anaerobic co-digestion with fruit and vegetable wastes: An opportunity to enhance the sustainability and circular economy of the WWTP digesters5. Self-Sustainability of Anaerobic Digestion for Conversion of Water Hyacinth into Value Added Bio-Fuels6. Production of High Value-Added Amino Acids and Biofuels (H2&CH4) from Gelatinous Industry Wastewater Via Anaerobic Bio-Degradation Process7. Bio-methanization of agricultural lignocellulosic wastes: Pretreatments8. Occurrence and Fate of Recalcitrant in Anaerobic Treatment of Wastewater and Organic9. Direct interspecies electron transfer (DIET) via conductive materials in anaerobic digestion of organic wastes10. Anaerobic digestion of bioplastics11. Kinetics models of Methane production from anaerobic digestion12. Using Black Soldier Fly for Waste Management in Developing Countries13. Resource recovery and circular economy approach in organic waste management using hydrothermal carbonization14. Resource recovery from food waste via biological processes15. Integral valorization of residual biomass: Hydrogen, polyhydroxyalkanoates, and compost production16. Thermal hydrolysis sludge pre-treatment17. Sustainable bio-waste recycling using insects18. Butanol production from algal biomass by ABE fermentation proces19. Polyhydroxyalkanoates production from algal biomass20. Use of membrane technologies to recover microalgae biomass produced in wastewater21. Black soldier fly biorefinery: A novel upcycling route for municipal biosolids

Vinay Kumar Tyagi is a Scientist D at the Environmental Hydrology Division, National Institute of Hydrology, Roorkee, India. His research interests include anaerobic digestion, energy-efficient wastewater treatment systems, sludge management, and advanced biomass pretreatment methods. He has over 100 publications to his credit, including full-text books, over 40 book chapters and manuals. Dr. Tyagi is a Fellow and Life Member of several professional bodies and organizations. He is a Management Committee Member of the International Water Association (IWA) Sludge Management Specialist Group and represents the South Asia Division, and also the Anaerobic Digestion Specialist Group. Dr. Tyagi has extensive international research exposure and collaborations in Norway, Taiwan, Spain, Japan, and Singapore in various environmental research domains of wastewater treatment, sludge pretreatment, and biomass to bioenergy recovery. Dr. Kaoutar Aboudi is a substitute lecturer in the Department of Chemical Engineering and Food Technology at the University of Cádiz (Spain), where she is a senior researcher in the Applied Bioprocess Engineering research group. Her central research areas include biomass to bioenergy and value-added product recovery through anaerobic digestion and fermentation processes. She has been working on technologies related to biohythane production for 15 years. Dr. Aboudi has co-edited 2 full books and has co-authored 12 book chapters and 20 peer-reviewed papers published in recognized journals. She has participated in over 19 international conferences worldwide and has been a member of several research projects related to biomass valorization. She previously completed postdoctoral research at the IMDEA-Energy Institute in Madrid (Spain) and international internships at Delft University of Technology (the Netherlands) and the New University of Lisbon (Portugal). She has successfully supervised BSc degree students in Chemical Engineering and Biotechnology.

• 1. State of the art of energy production from agricultural residues using thermochemical and biological processes2. Valorising agricultural residues as biorefinery feedstocks: current advancements and challenges3. Status and perspectives of agricultural residues in a circular and resource efficient context4. Anaerobic co-digestion with fruit and vegetable wastes: An opportunity to enhance the sustainability and circular economy of the WWTP digesters5. Self-Sustainability of Anaerobic Digestion for Conversion of Water Hyacinth into Value Added Bio-Fuels6. Production of High Value-Added Amino Acids and Biofuels (H2&CH4) from Gelatinous Industry Wastewater Via Anaerobic Bio-Degradation Process7. Bio-methanization of agricultural lignocellulosic wastes: Pretreatments8. Occurrence and Fate of Recalcitrant in Anaerobic Treatment of Wastewater and Organic9. Direct interspecies electron transfer (DIET) via conductive materials in anaerobic digestion of organic wastes10. Anaerobic digestion of bioplastics11. Kinetics models of Methane production from anaerobic digestion12. Using Black Soldier Fly for Waste Management in Developing Countries13. Resource recovery and circular economy approach in organic waste management using hydrothermal carbonization14. Resource recovery from food waste via biological processes15. Integral valorization of residual biomass: Hydrogen, polyhydroxyalkanoates, and compost production16. Thermal hydrolysis sludge pre-treatment17. Sustainable bio-waste recycling using insects18. Butanol production from algal biomass by ABE fermentation proces19. Polyhydroxyalkanoates production from algal biomass20. Use of membrane technologies to recover microalgae biomass produced in wastewater21. Black soldier fly biorefinery: A novel upcycling route for municipal biosolids