1. Circular economy approach in the water and wastewater sector<br>Marzena Smol<br>2. Integrating circularity to achieve sustainability: Examples of various wastewater treatment systems<br>Tamara Avellán, Nidhi Nagabhatla, Ishita Jalan, and Danielle Liao<br>3. Risks associated with the circular economy: Treated sewage reuse in agriculture<br>Ana María Leiva, Benjamín Piña, and Gladys Vidal<br>4. Wastewater reuse for agricultural irrigation in Greece: Review of guidelines under the prism of the latest European Union's policy developments<br>Charikleia Prochaska and Anastasios Zouboulis<br>5. A circular model for sustainable produced water management in the oil and gas industry<br>Alexandros I. Stefanakis<br>6. College of engineering Pune hostel campus: An Indian experience of sustainable wastewater treatment and reuse<br>F. Masi, R. Bresciani, A. Rizzo, and D. Panse<br>7. Wastewater treatment and sludge management strategies for environmental sustainability<br>Manisha Sharma, Ankush Yadav, Mrinal Kanti Mandal, Shailesh Pandey, Supriya Pal, Hirok Chaudhuri, Sandip Chakrabarti, and Kashyap Kumar Dubey<br>8. Recovery of nutritional resources of urban sewage sludge in lettuce production<br>T.N. Moraes, D.O. Guilherme, P.S. Cavalheri, and F.J.C. Magalhães Filho<br>9. Sludge drying reed beds: A key ecotechnology for a sustainable sanitation infrastructure in Brazil<br>Andre Baxter Barreto, Gabriel Rodrigues Vasconcellos, and Breno Henrique Leite Cota<br>10. Manure treatment and recycling technologies<br>Renjie Dong, Wei Qiao, Jianbin Guo, and Hui Sun<br>11. Circular economy in the Mesopotamian Marshes: The Eden in Iraq Wastewater Garden Project<br>Davide Tocchetto, Meridel Rubenstein, Mark Nelson, and Jassim Al-Asadi<br>12. Design concept and performance of a constructed wetland system engineered for the circular economy<br>Akintunde O. Babatunde<br>13. Valorization of solid waste in subsurface flow constructed wetlands based on renewable modular structures: A contribution to a circular economy<br>Henrique J.O. Pinho and Dina M.R. Mateus<br>14. Nature-based solutions for socially and environmentally responsible new cities: The contribution of green roofs<br>Cristina Sousa Coutinho Calheiros, Beatriz Castiglione, and Paulo Palha<br>15. Constructed wetlands’ application for flower farms wastewater treatment in developing countries: Case study in Kenya<br>Gilbert Atuga and Tsuma Jembe<br>16. Ecotoxicity evaluation of diclofenac potassium in vertical flow constructed wetlands as posttreatment of septic tank effluent<br>P.S. Cavalheri, M.A. Mello, A.L. Pereira, T.R. Marques, T.N. Moraes, G.H. Cavazzana, and F.J.C. Magalhães Filho<br>17. Searching for sustainability in organic matter and nitrogen removal by integrating constructed wetlands and microbial fuel cells<br>Daniela López, Thaís González, Gloria Gómez, Juan Pablo Miranda, Jose Contreras, and Gladys Vidal<br>18. Creative approaches in engaging the community toward ecological waste management and wetland conservation<br>Aaron Julius M. Lecciones, Kevin Roy B. Serrona, Ma. Catriona E. Devanadera, Amy M. Lecciones, and Jeongsoo Yu<br>19. Circular economy in the building sector: Towards a holistic framework for implementing circular business models<br>Fatima Khitous, Andrea Urbinati, Davide Chiaroni, and Raffaella Manzini<br>20. Improving circular building under uncertainty and complexity: Exploring recent trends in the Netherlands<br>Jannie Coenen<br>21. Circular materials—An essay on challenges with current manufacturing and recycling strategies as well as on the potential of life cycle integrated designs<br>Ludovic F. Dumee<br>22. Waste to energy at the neighborhood microscale in the urban regeneration of Madrid peripheries: Towards effective circular neighborhoods<br>Francisco Javier González, Susana Moreno, and Lourdes Rodriguez<br>23. Optimization of surface mining operation based on a circular economy model<br>F. Pavloudakis, C. Roumpos, and P.M. Spanidis<br>24. Sustainability assessment of bioleaching for mineral resource recovery from MSWI ashes<br>Valerio Funari<br>25. Circular economy for the sustainability of the wood-based industry: The case of Caraga Region, Philippines <br>Raquel M. Balanay, Rowena P. Varela, and Anthony B. Halog<br>26. Equilibrium modeling and statistical analysis of struvite precipitation for nutrient recovery from corn-ethanol downstream process<br>Ravi Kanani<br>27. Food processing wastes as a potential source of adsorbent for toxicant removal from water <br>Son Van Tran, Khai Manh Nguyen, Ha Thi Nguyen, Alexandros I. Stefanakis, and Phuong Minh Nguyen<br>28. Sustainable circular economy design in 2050 for water and food security using renewable energy<br>Seeme Mallick<br>29. Towards circular economy in e-waste management in India: Issues, challenges, and solutions<br>Biswajit Debnath, Ankita Das, and Abhijit Das
