A full professor since 2012, Katarzyna Chojnacka Ph.D., Dr.Sc. has published over 350 papers, including 200 papers in world-known peer-reviewed scientific journals from JCR list, among them majority devoted to biosorption. She has participated in many international and national conferences as invited plenary speaker and received numerous awards. She is currently the head of Chemical Laboratory of Multielemental Analyses certified by Polish Centre for Accreditation and ILAC MRA for PN-EN ISO which specializes in determination of trace elements in environmental and biological samples, as well as in commercial products. She is the author of 30 patents and implementation of fertilizer products with trace elements to the market. For many years, she has been an expert for the National Science Centre (Poland) and The National Centre for Research and Development (Poland) Dawid Skrzypczak is a distinguished professional in the Department of Chemical Engineering at the Wrocław University of Science and Technology. He earned his B.S. (2016), M.S. (2017), and Ph.D. (2021), all in Chemical Engineering, from the same institution. After obtaining his doctorate, he continued his research as a postdoctoral fellow, focusing on the valorization of waste biomass for fertilization and feed purposes, recovery of fertilizer nutrients from waste materials, hydrogel materials, seed coating, biosorption process, and analytical methods.Dawid has also gained valuable industry experience as a process design engineer at various institutions. He has participated in several internships and training programs, including the Erasmus+ Mobility Agreement at the İzmir Institute of Technology, Turkey, and the National Technical University of Athens, School of Chemical Engineering. His work on waste biomass valorization and nutrient recovery has been recognized with several prestigious grants, fellowships, and awards. With over 15 years of experience in the field, Dawid has made significant contributions to the field of Chemical Engineering.

• 1. Introduction to Biogas Technology.2. Waste to Energy: Principles of Biogas Production.3. Digestate: From Waste Product to Valuable Resource.4. Advanced Digestate Treatment Technologies.5. Optimizing Biogas Production: Emerging Trends and Technologies.6. Assessment of Biogas Fertilizers: Efficacy and Application.7. Case Studies: Global Perspectives on Biogas Projects.8. Sustainability Assessment: Carbon Footprint and LCA of Biogas Production.9. Economic Viability and Market Analysis of Biogas Production.10. Policy and Regulatory Framework for Biogas Production.11. Conclusions and Future Perspectives.

A full professor since 2012, Katarzyna Chojnacka Ph.D., Dr.Sc. has published over 350 papers, including 200 papers in world-known peer-reviewed scientific journals from JCR list, among them majority devoted to biosorption. She has participated in many international and national conferences as invited plenary speaker and received numerous awards. She is currently the head of Chemical Laboratory of Multielemental Analyses certified by Polish Centre for Accreditation and ILAC MRA for PN-EN ISO which specializes in determination of trace elements in environmental and biological samples, as well as in commercial products. She is the author of 30 patents and implementation of fertilizer products with trace elements to the market. For many years, she has been an expert for the National Science Centre (Poland) and The National Centre for Research and Development (Poland) Dawid Skrzypczak is a distinguished professional in the Department of Chemical Engineering at the Wrocław University of Science and Technology. He earned his B.S. (2016), M.S. (2017), and Ph.D. (2021), all in Chemical Engineering, from the same institution. After obtaining his doctorate, he continued his research as a postdoctoral fellow, focusing on the valorization of waste biomass for fertilization and feed purposes, recovery of fertilizer nutrients from waste materials, hydrogel materials, seed coating, biosorption process, and analytical methods.Dawid has also gained valuable industry experience as a process design engineer at various institutions. He has participated in several internships and training programs, including the Erasmus+ Mobility Agreement at the İzmir Institute of Technology, Turkey, and the National Technical University of Athens, School of Chemical Engineering. His work on waste biomass valorization and nutrient recovery has been recognized with several prestigious grants, fellowships, and awards. With over 15 years of experience in the field, Dawid has made significant contributions to the field of Chemical Engineering.

• 1. Introduction to Biogas Technology.2. Waste to Energy: Principles of Biogas Production.3. Digestate: From Waste Product to Valuable Resource.4. Advanced Digestate Treatment Technologies.5. Optimizing Biogas Production: Emerging Trends and Technologies.6. Assessment of Biogas Fertilizers: Efficacy and Application.7. Case Studies: Global Perspectives on Biogas Projects.8. Sustainability Assessment: Carbon Footprint and LCA of Biogas Production.9. Economic Viability and Market Analysis of Biogas Production.10. Policy and Regulatory Framework for Biogas Production.11. Conclusions and Future Perspectives.

A full professor since 2012, Katarzyna Chojnacka Ph.D., Dr.Sc. has published over 350 papers, including 200 papers in world-known peer-reviewed scientific journals from JCR list, among them majority devoted to biosorption. She has participated in many international and national conferences as invited plenary speaker and received numerous awards. She is currently the head of Chemical Laboratory of Multielemental Analyses certified by Polish Centre for Accreditation and ILAC MRA for PN-EN ISO which specializes in determination of trace elements in environmental and biological samples, as well as in commercial products. She is the author of 30 patents and implementation of fertilizer products with trace elements to the market. For many years, she has been an expert for the National Science Centre (Poland) and The National Centre for Research and Development (Poland) Dawid Skrzypczak is a distinguished professional in the Department of Chemical Engineering at the Wrocław University of Science and Technology. He earned his B.S. (2016), M.S. (2017), and Ph.D. (2021), all in Chemical Engineering, from the same institution. After obtaining his doctorate, he continued his research as a postdoctoral fellow, focusing on the valorization of waste biomass for fertilization and feed purposes, recovery of fertilizer nutrients from waste materials, hydrogel materials, seed coating, biosorption process, and analytical methods.Dawid has also gained valuable industry experience as a process design engineer at various institutions. He has participated in several internships and training programs, including the Erasmus+ Mobility Agreement at the İzmir Institute of Technology, Turkey, and the National Technical University of Athens, School of Chemical Engineering. His work on waste biomass valorization and nutrient recovery has been recognized with several prestigious grants, fellowships, and awards. With over 15 years of experience in the field, Dawid has made significant contributions to the field of Chemical Engineering.

• 1. Introduction to Biogas Technology.2. Waste to Energy: Principles of Biogas Production.3. Digestate: From Waste Product to Valuable Resource.4. Advanced Digestate Treatment Technologies.5. Optimizing Biogas Production: Emerging Trends and Technologies.6. Assessment of Biogas Fertilizers: Efficacy and Application.7. Case Studies: Global Perspectives on Biogas Projects.8. Sustainability Assessment: Carbon Footprint and LCA of Biogas Production.9. Economic Viability and Market Analysis of Biogas Production.10. Policy and Regulatory Framework for Biogas Production.11. Conclusions and Future Perspectives.