Dr. Prasad is Emeritus Professor, School of Life Sciences, University of Hyderabad (India). He has made outstanding contributions to the fields of bioremediation, bioresources, biomass energy sources, bioeconomy, and to the broad field of environmental biotechnology, all of which are his main areas of expertise. Dr. Prasad has served the Government of India’s Ministry of Environment, Forests and Climate Change as a member of various advisory committees on biodiversity conservation, ecosystem services, pollution control and abatement, environmental information systems and bioremediation of contaminated sites. He is an active visiting scientist for several international universities. Dr. hab. Anna Grobelak is a Professor at the Częstochowa University of Technology, specializing in environmental protection, biodegradation, microbiology, and environmental chemistry. Her research focuses on advanced wastewater treatment technologies, pharmaceutical removal, microplastic analysis, and the application of cold plasma in treatment processes. Prof. Grobelak collaborates with various research institutions worldwide, enabling knowledge exchange and the development of innovative environmental solutions for both the fields of biotechnology and sustainable waste management.

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• Section A. Sludge: Sources and Characterization1. Sludge from wastewater treatment plants2. Sludge from tannery industries3. Vermistabilization and detoxification of sugar industry sludges by earthworms4. Earthworms converting domestic and food industry wastes into biofertilizer5. Rheological characterization of sludgeSection B. Sludge Management6. General considerations on industrial and municipal sludge disposal7. Sanitary and environmental aspects of sewage sludge management8. Sludge activation, conditioning, and engineering9. Sludge legislation: Comparison between different countries10. Biosurfactants for oil recovery from refinery sludge: magnetic nanoparticle-assisted purification11. Industrial sludge for ceramic products and its benefits for metal stabilization12. Detoxification of organic sludge from water-treatment plants by active forms of Ca and Si13. Sludge multifunctions in a phytobiome—Forest and plantation application including microbial aspects14. Co-composting of sewage sludge and wetland plant material from a constructed wetland treating domestic wastewater15. Co-processing of sewage sludge in cement kilnSection C. Contaminants in Sludge and Treatment Strategies16. Emerging technologies in sewage sludge treatment and disintegration17. Sludge dewatering: Processes for enhanced performance18. Emerging contaminants in sludge (endocrine disruptors, pesticides, and pharmaceutical residues, including illicit drugs/controlled substances, etc.)19. Carbonization of sewage sludge as an adsorbent for organic pollutants20. Stabilization of cadmium in industrial sludge—Generation of crystalline products21. Bioleaching for extracting heavy metals from electronic waste sludge22. Microplastics in sludgeSection D. Valorization of Sludge as a Resource23. Gasification of sewage sludge24. From waste to resource: Sorption properties of biological and industrial sludge25. Phosphorus extraction and sludge dissolution26. Municipal solid sludge for soil amendment in saline conditions27. Sludge valorization: A novel approach for treatment and resource recovery to achieve circular economy28. Thermal processes for sludge valorization: Non-combustion pathwaysSection E. Energy Recovery from Sludge29. Volatile fatty acid yield from sludge anaerobic fermentation through a biotechnological approach30. Biogas (methane production) and energy recovery from different sludges31. Biogas production by thermal hydrolysis and thermophilic anaerobic digestion of waste-activated sludge32. Microbial fuel cell application for sludge remediation and minimization