Regional Perspectives of Nature-based Solutions for Water: Benefits and Challenges

Table of Contents

1 Introduction Nature-based solutions for urban water management: challenges and opportunities in the context of Asia

Nevelina Pachova, Perlie P. Velasco, Antonina Torrens Armengol, and Veeriah Jegatheesan

2 Types of Nature-based Solutions for water, their functions and suitability

Raúl Sánchez, Esther San José, José Fermoso, Silvia Gómez, and María González

2.1 Introduction

2.2 Identification of Water Urban Challenges (Water UC) and existing NbS to address them

2.3 Overview of Water NbS

2.3.1 Impact scenarios of water NbS in relation to ecosystem services provided

2.3.2 Establishment of NbS Categories

2.4 Water NbS case studies

2.4.1 Floating gardens case study

2.4.2 Urban Catchment forestry case study

2.5 Conclusions

2.6 Acknowledgments

2.7 References

3 Constructed floating wetlands for the treatment of surface waters and industrial wastewaters

Jennifer Ayres, John Awad, Christopher Walker, Declan Page, John van Leeuwen, and Simon Beecham

3.1 Introduction

3.2 Overview of Constructed Floating Wetlands

3.2.1 Design Attributes

3.2.2 Structural Design and Buoyancy

3.2.3 Plant Selection

3.2.4 Plant Anchoring and Harvesting

3.3 Treatment Overview

3.3.1 Nutrient Removal

3.3.2 Heavy Metals Removal

3.3.3 Removal of Organic Compounds

3.3.4 Effect of Hydrodynamics on Pollutant Removal

3.3.5 Improving the Design of CFW Installations

3.4 Other Benefits

3.5 Validation and Operational Monitoring

3.5.1 Treatment Validation and Use of Surrogate Parameters

3.5.2 Recommendations for Future Research

3.6 Conclusion

3.7 Acknowledgements

3.8 References

4 Nature based solutions for water management in England: contribution to biodiversity net-gain in urban areas

Doug Warner

4.1 Introduction

4.1.1 Nature Based Water Management Solutions

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Nevelina Pachova: Research Fellow at RMIT Europe, the European hub of Australian University RMIT, where she conducts research and supports the development and implementation of research and innovation projects in the field of urban development and sustainability transitions with a focus on the integration of nature-based solutions in urban development and planning, network governance and social inclusion. Prior to joining RMIT, Nevelina worked in the field of natural resources management and poverty reduction at different agencies of the United Nations University in Tokyo and Bonn.

Perlie Velasco: Assistant Professor at the Department of Civil Engineering, University of the Philippines - Los Baños (DCE, UPLB). She is the lead faculty in Environmental Engineering at the department with research projects in constructed wetlands and integrated solid waste management. She got her undergraduate degree in Civil Engineering at UPLB (2005), Master's degree in Water Resources Engineering at the Katholieke Universiteit Leuven, Belgium (2010), and PhD Degree in Environmental Engineering at the Royal Melbourne Institute of Technology, Australia (2022). Her research works focus on membrane-based recovery of dissolved methane from wastewater effluent and constructed wetlands for wastewater treatment.

Antonina Torrens Armengol: Adjunct Professor at Biology, Healthcare and Environment department, Faculty of Pharmacy and Food Sciences, University of Barcelona (UB) and the coordinator of Water Hygiene and Sanitation (WASH) and Nature Based Solutions (NbS) for sustainable development programs at the Solidarity Foundation, UB. She has a PhD in Environmental Science and Technology at UB. Her main research expertise is in the field of NbS for sustainable water management, water quality, and water reuse. She's involved in numerous European research projects on water resources and international cooperation projects relatedto WASH and NbS for sustainable water management in Asia, Africa, and South America.

Veeriah Jegatheesan (Jega): Professor of Environmental Engineering at RMIT University, Melbourne, Australia. Jega is co-founder and Chairman of the international conference series on Challenges in Environmental Science & Engineering (CESE) held annually since 2008. Jega has conducted extensive research on the application of membrane bioreactors, sugar cane juice clarification and seawater desalination. He has over 450 publications including more than 170 peer-reviewed journal articles and five edited books.In 2019, Stormwater Industry Association (Australia) has appointed him as one of the Governance Panel members for the Australian Stormwater Quality Improvement Device Evaluation Protocol (SQIDEP).