Dr. José Carlos Magalhães Pires is a Senior Researcher at the University of Porto, Portugal. He holds a PhD in Environmental Engineering from the same institution and has over 18 years of experience in teaching and research within the fields of environmental sciences and process systems engineering. His research interests include process modeling and optimization, sustainable microalgal cultivation strategies, bioreactor design, and the applications of microalgae in water treatment, CO2 capture and bioenergy production. AF Esteves graduated in Environmental Engineering, by FEUP in 2019. AF Esteves is currently a PhD student in Environmental Engineering at the Faculty of Engineering of the University of Porto, Portugal. The PhD, entitled Light optimisation on microalgae cultivation and production of high-value products: from laboratory to pilot scale, aimed the intensification of microalgal biomass production and the content in high-value products, optimising the light supply. Her work also includes the application of stress conditions to infer about its effect on biochemical composition of the biomass. She published 7 papers in international peer-reviewed journals (3 as first author), 4 book chapters and her research work was discussed in 3 international meetings and in 3 national meetings. EM Salgado is a PhD student in Environmental Engineering at the Faculty of Engineering of the University of Porto (FEUP), Portugal. She graduated in Bioengineering specialising in Biological Engineering, by FEUP in 2021.She published 2 articles in international peer-reviewed journals, 1 as the first author, and 2 book chapters, 1 as the first author. Her research work was discussed in 5 international meetings, winning the best poster award in one of them. Her research interests include the use of microalgal cultures for wastewater treatment, removal of contaminants of emerging concern such as siloxanes, biogas upgrading, and employing innovative photobioreactor designs in these processes under the principles of a circular economy.

• Part I. Introduction1. Microalgae: a vision for sustainability2. State-of-the-art: microalgae production systems and microalgae applicationsPart II. Gaseous stream treatment3. Carbon dioxide uptake into biomass for carbon neutrality of processes4. Biogas purification and calorific value enhancement5. Boosting wastewater-cultivated microalgae metabolism via nanoparticle additionPart III. Water treatment6. Microalgal growth in urban wastewater: biomass production with nutrient removal7. Microalgal role in sustainable business models for the textile industry8. Heavy metals and other chemicals removal by microalgae9. Microalgae in sewage treatment: tackling emerging contaminants and challenges10. Nutrients recovery from wastewater by microalgaePart IV. Sustainable agriculture11. Microalgae as biobased fertilizers for sustainable agriculture12. Microalgae as biobased pesticides for sustainable agriculture13. Microalgae: green cell biofactories in food and feed supply chainsPart V. Energetic sustainability14. Liquid biofuels from microalgae: production challenges15. Biomass conversion technologies for a circular carbon economyPart VI. Industrial case studies16. Bioenergy and water recovery based on microalgae17. Integration of anaerobic digestion and microalgal cultivation for efficient biofuel production from wastewater18. Efficient separation of microalgal biomass from wastewater effluent19. From lab to outdoors: microalgal process perspective for a step to reality

Dr. José Carlos Magalhães Pires is a Senior Researcher at the University of Porto, Portugal. He holds a PhD in Environmental Engineering from the same institution and has over 18 years of experience in teaching and research within the fields of environmental sciences and process systems engineering. His research interests include process modeling and optimization, sustainable microalgal cultivation strategies, bioreactor design, and the applications of microalgae in water treatment, CO2 capture and bioenergy production. AF Esteves graduated in Environmental Engineering, by FEUP in 2019. AF Esteves is currently a PhD student in Environmental Engineering at the Faculty of Engineering of the University of Porto, Portugal. The PhD, entitled Light optimisation on microalgae cultivation and production of high-value products: from laboratory to pilot scale, aimed the intensification of microalgal biomass production and the content in high-value products, optimising the light supply. Her work also includes the application of stress conditions to infer about its effect on biochemical composition of the biomass. She published 7 papers in international peer-reviewed journals (3 as first author), 4 book chapters and her research work was discussed in 3 international meetings and in 3 national meetings. EM Salgado is a PhD student in Environmental Engineering at the Faculty of Engineering of the University of Porto (FEUP), Portugal. She graduated in Bioengineering specialising in Biological Engineering, by FEUP in 2021.She published 2 articles in international peer-reviewed journals, 1 as the first author, and 2 book chapters, 1 as the first author. Her research work was discussed in 5 international meetings, winning the best poster award in one of them. Her research interests include the use of microalgal cultures for wastewater treatment, removal of contaminants of emerging concern such as siloxanes, biogas upgrading, and employing innovative photobioreactor designs in these processes under the principles of a circular economy.

• Part I. Introduction1. Microalgae: a vision for sustainability2. State-of-the-art: microalgae production systems and microalgae applicationsPart II. Gaseous stream treatment3. Carbon dioxide uptake into biomass for carbon neutrality of processes4. Biogas purification and calorific value enhancement5. Boosting wastewater-cultivated microalgae metabolism via nanoparticle additionPart III. Water treatment6. Microalgal growth in urban wastewater: biomass production with nutrient removal7. Microalgal role in sustainable business models for the textile industry8. Heavy metals and other chemicals removal by microalgae9. Microalgae in sewage treatment: tackling emerging contaminants and challenges10. Nutrients recovery from wastewater by microalgaePart IV. Sustainable agriculture11. Microalgae as biobased fertilizers for sustainable agriculture12. Microalgae as biobased pesticides for sustainable agriculture13. Microalgae: green cell biofactories in food and feed supply chainsPart V. Energetic sustainability14. Liquid biofuels from microalgae: production challenges15. Biomass conversion technologies for a circular carbon economyPart VI. Industrial case studies16. Bioenergy and water recovery based on microalgae17. Integration of anaerobic digestion and microalgal cultivation for efficient biofuel production from wastewater18. Efficient separation of microalgal biomass from wastewater effluent19. From lab to outdoors: microalgal process perspective for a step to reality

Dr. José Carlos Magalhães Pires is a Senior Researcher at the University of Porto, Portugal. He holds a PhD in Environmental Engineering from the same institution and has over 18 years of experience in teaching and research within the fields of environmental sciences and process systems engineering. His research interests include process modeling and optimization, sustainable microalgal cultivation strategies, bioreactor design, and the applications of microalgae in water treatment, CO2 capture and bioenergy production. AF Esteves graduated in Environmental Engineering, by FEUP in 2019. AF Esteves is currently a PhD student in Environmental Engineering at the Faculty of Engineering of the University of Porto, Portugal. The PhD, entitled Light optimisation on microalgae cultivation and production of high-value products: from laboratory to pilot scale, aimed the intensification of microalgal biomass production and the content in high-value products, optimising the light supply. Her work also includes the application of stress conditions to infer about its effect on biochemical composition of the biomass. She published 7 papers in international peer-reviewed journals (3 as first author), 4 book chapters and her research work was discussed in 3 international meetings and in 3 national meetings. EM Salgado is a PhD student in Environmental Engineering at the Faculty of Engineering of the University of Porto (FEUP), Portugal. She graduated in Bioengineering specialising in Biological Engineering, by FEUP in 2021.She published 2 articles in international peer-reviewed journals, 1 as the first author, and 2 book chapters, 1 as the first author. Her research work was discussed in 5 international meetings, winning the best poster award in one of them. Her research interests include the use of microalgal cultures for wastewater treatment, removal of contaminants of emerging concern such as siloxanes, biogas upgrading, and employing innovative photobioreactor designs in these processes under the principles of a circular economy.

• Part I. Introduction1. Microalgae: a vision for sustainability2. State-of-the-art: microalgae production systems and microalgae applicationsPart II. Gaseous stream treatment3. Carbon dioxide uptake into biomass for carbon neutrality of processes4. Biogas purification and calorific value enhancement5. Boosting wastewater-cultivated microalgae metabolism via nanoparticle additionPart III. Water treatment6. Microalgal growth in urban wastewater: biomass production with nutrient removal7. Microalgal role in sustainable business models for the textile industry8. Heavy metals and other chemicals removal by microalgae9. Microalgae in sewage treatment: tackling emerging contaminants and challenges10. Nutrients recovery from wastewater by microalgaePart IV. Sustainable agriculture11. Microalgae as biobased fertilizers for sustainable agriculture12. Microalgae as biobased pesticides for sustainable agriculture13. Microalgae: green cell biofactories in food and feed supply chainsPart V. Energetic sustainability14. Liquid biofuels from microalgae: production challenges15. Biomass conversion technologies for a circular carbon economyPart VI. Industrial case studies16. Bioenergy and water recovery based on microalgae17. Integration of anaerobic digestion and microalgal cultivation for efficient biofuel production from wastewater18. Efficient separation of microalgal biomass from wastewater effluent19. From lab to outdoors: microalgal process perspective for a step to reality