Dr. Mahmoud Nasr is an Associate Professor of Sanitary Engineering at Alexandria University, Egypt, since 2020. He received his Ph.D. degree in 2014 from the Egypt-Japan University of Science and Technology (E-JUST) and his M.Sc. from Alexandria University in 2010. Dr. Nasr was a Postdoc Fellow at the Institute for Water and Wastewater Technology from  Durban University of Technology (DUT), South Africa in 2015, a Research Scientist at the Chemical Engineering Department, Texas A&M University, Qatar from 2016 to 2018, and a Visiting Scientist at DUT in 2019. He has participated in several international projects, published more than 80 papers in national and international journals and conferences, and contributed to more than 10 chapters. He was also awarded the Top 10 Postdoc Fellow at DUT in 2016. He is a member of the Editorial Board of the Journal of Scientific Research and Reports. He was a member of the Scientific Committee of several international conferences suchas the International Conference on New Energy and Future Energy System (2019), International Conference on Sustainable Environment and Agriculture (2019), International Conference on Fuzzy Systems and Data Mining (2019), and Pollution Control Summit (2020). Prof. Abdelazim Negm is a Professor of Hydraulics at the Faculty of Engineering, Zagazig University, Egypt, since 2004. He received his Ph.D. in 1992 from Zagazig University (ZU), and his M.Sc. from Ain shams University in 1990. He was the vice dean of the Faculty of Engineering of ZU from December 2008 to December 2011 and was the head of the Environmental Engineering Dept. at Egypt-Japan University of Science and Technology (E-JUST), Egypt, from October 2013 to March 2016. He has participated in several international projects since 2006, published more than 300 papers in national and international journals and conferences and contributed to more than 50 chapters. Professor Negm is a member of theeditorial board of The Handbook of Environmental Chemistry book series at Springer and he has been actively contributing to the series by editing several volumes since 2017. He is also the editor-in-Chief of the Egyptian International Journal of Engineering Sciences and Technology, and an associate editor of the Euro-Mediterranean Journal for Environmental Integration. Professor Negm is the head of the permanent scientific committee on Water Resources for promotion of professors and associate professors, the supreme council of Egyptian Universities, Egypt, and he is listed in some of the most prestigious directories including the American Biographical Institute (ABI), Inc, USA, "Marquis Who's Who in the World",  27th Ed., 2010, USA  and in IBC's 2000 Outstanding Intellectuals of the 21st Century by International Biographical Center, Cambridge, England.

• Overview, Objectives, Principles, and State-of-the-Art of Natural-Based Wastewater Treatment Technologies.- Monitoring and Measurement Techniques of Water Quality Parameters in Natural-Based Wastewater Treatment.- Energy, Material, and Water Resources in Natural-Based Wastewater Treatment Approaches.- Strategies for Phytoremdiation of Polluted Water Using Plants and Soil: Impacts of Climate Change, and Land-Use.- Fundamentals of Natural Systems as Post-Treatment of Anaerobically Treated Effluent.- Impact of Combined Sewer Overflows on Recipient Water, Plants, and Soil Environment.- Nature-based Treatment Systems for Reclaimed Wastewater Reuse in Agriculture: Water, Energy, and Nutrients Recovery.- Nature-based Treatment Systems for Reclaimed Wastewater Reuse in Danish Agriculture: A case study.- Cost-Effective Adsorbents for Reduction of Conventional and Emerging Pollutants in Modified Natural Wastewater Treatment.- Environmental-friendly and Cost-effective Agricultural Wastes for Heavy Metals and Toxicants Removal from Wastewater.- Green Synthesized Iron Nanoparticles for Environmental Management: Minimizing Material and Energy Inputs.- Overview of Waste Stabilization Ponds in Developing Countries.- Afforestation and Reforestation in Egypt Using Treated Wastewater: State-of-the-Art Solutions.- Plasma Technology: A Novel Approach for Deactivating Pathogens in Natural Eco-systems.- Application of Anaerobic Hybrid Filters for Sewage Treatment.- Water-Energy Nexus in Wastewater Management for Irrigation.- New technologies in decentralised wastewater management.- Microalgae Production Integrated with the Wastewater Treatment: A Management Approach.- Wastewater Management for Strengthening the Knowledge of Endocrine Disrupting Chemicals in Aquatic Ecosystem.- Policy, laws, and Guidelines of Wastewater Reuse for Agricultural Purposes in Developing Countries.

Dr. Mahmoud Nasr is an Associate Professor of Sanitary Engineering at Alexandria University, Egypt, since 2020. He received his Ph.D. degree in 2014 from the Egypt-Japan University of Science and Technology (E-JUST) and his M.Sc. from Alexandria University in 2010. Dr. Nasr was a Postdoc Fellow at the Institute for Water and Wastewater Technology from  Durban University of Technology (DUT), South Africa in 2015, a Research Scientist at the Chemical Engineering Department, Texas A&M University, Qatar from 2016 to 2018, and a Visiting Scientist at DUT in 2019. He has participated in several international projects, published more than 80 papers in national and international journals and conferences, and contributed to more than 10 chapters. He was also awarded the Top 10 Postdoc Fellow at DUT in 2016. He is a member of the Editorial Board of the Journal of Scientific Research and Reports. He was a member of the Scientific Committee of several international conferences suchas the International Conference on New Energy and Future Energy System (2019), International Conference on Sustainable Environment and Agriculture (2019), International Conference on Fuzzy Systems and Data Mining (2019), and Pollution Control Summit (2020). Prof. Abdelazim Negm is a Professor of Hydraulics at the Faculty of Engineering, Zagazig University, Egypt, since 2004. He received his Ph.D. in 1992 from Zagazig University (ZU), and his M.Sc. from Ain shams University in 1990. He was the vice dean of the Faculty of Engineering of ZU from December 2008 to December 2011 and was the head of the Environmental Engineering Dept. at Egypt-Japan University of Science and Technology (E-JUST), Egypt, from October 2013 to March 2016. He has participated in several international projects since 2006, published more than 300 papers in national and international journals and conferences and contributed to more than 50 chapters. Professor Negm is a member of theeditorial board of The Handbook of Environmental Chemistry book series at Springer and he has been actively contributing to the series by editing several volumes since 2017. He is also the editor-in-Chief of the Egyptian International Journal of Engineering Sciences and Technology, and an associate editor of the Euro-Mediterranean Journal for Environmental Integration. Professor Negm is the head of the permanent scientific committee on Water Resources for promotion of professors and associate professors, the supreme council of Egyptian Universities, Egypt, and he is listed in some of the most prestigious directories including the American Biographical Institute (ABI), Inc, USA, "Marquis Who's Who in the World",  27th Ed., 2010, USA  and in IBC's 2000 Outstanding Intellectuals of the 21st Century by International Biographical Center, Cambridge, England.

• Overview, Objectives, Principles, and State-of-the-Art of Natural-Based Wastewater Treatment Technologies.- Monitoring and Measurement Techniques of Water Quality Parameters in Natural-Based Wastewater Treatment.- Energy, Material, and Water Resources in Natural-Based Wastewater Treatment Approaches.- Strategies for Phytoremdiation of Polluted Water Using Plants and Soil: Impacts of Climate Change, and Land-Use.- Fundamentals of Natural Systems as Post-Treatment of Anaerobically Treated Effluent.- Impact of Combined Sewer Overflows on Recipient Water, Plants, and Soil Environment.- Nature-based Treatment Systems for Reclaimed Wastewater Reuse in Agriculture: Water, Energy, and Nutrients Recovery.- Nature-based Treatment Systems for Reclaimed Wastewater Reuse in Danish Agriculture: A case study.- Cost-Effective Adsorbents for Reduction of Conventional and Emerging Pollutants in Modified Natural Wastewater Treatment.- Environmental-friendly and Cost-effective Agricultural Wastes for Heavy Metals and Toxicants Removal from Wastewater.- Green Synthesized Iron Nanoparticles for Environmental Management: Minimizing Material and Energy Inputs.- Overview of Waste Stabilization Ponds in Developing Countries.- Afforestation and Reforestation in Egypt Using Treated Wastewater: State-of-the-Art Solutions.- Plasma Technology: A Novel Approach for Deactivating Pathogens in Natural Eco-systems.- Application of Anaerobic Hybrid Filters for Sewage Treatment.- Water-Energy Nexus in Wastewater Management for Irrigation.- New technologies in decentralised wastewater management.- Microalgae Production Integrated with the Wastewater Treatment: A Management Approach.- Wastewater Management for Strengthening the Knowledge of Endocrine Disrupting Chemicals in Aquatic Ecosystem.- Policy, laws, and Guidelines of Wastewater Reuse for Agricultural Purposes in Developing Countries.

Dr. Mahmoud Nasr is an Associate Professor of Sanitary Engineering at Alexandria University, Egypt, since 2020. He received his Ph.D. degree in 2014 from the Egypt-Japan University of Science and Technology (E-JUST) and his M.Sc. from Alexandria University in 2010. Dr. Nasr was a Postdoc Fellow at the Institute for Water and Wastewater Technology from  Durban University of Technology (DUT), South Africa in 2015, a Research Scientist at the Chemical Engineering Department, Texas A&M University, Qatar from 2016 to 2018, and a Visiting Scientist at DUT in 2019. He has participated in several international projects, published more than 80 papers in national and international journals and conferences, and contributed to more than 10 chapters. He was also awarded the Top 10 Postdoc Fellow at DUT in 2016. He is a member of the Editorial Board of the Journal of Scientific Research and Reports. He was a member of the Scientific Committee of several international conferences suchas the International Conference on New Energy and Future Energy System (2019), International Conference on Sustainable Environment and Agriculture (2019), International Conference on Fuzzy Systems and Data Mining (2019), and Pollution Control Summit (2020). Prof. Abdelazim Negm is a Professor of Hydraulics at the Faculty of Engineering, Zagazig University, Egypt, since 2004. He received his Ph.D. in 1992 from Zagazig University (ZU), and his M.Sc. from Ain shams University in 1990. He was the vice dean of the Faculty of Engineering of ZU from December 2008 to December 2011 and was the head of the Environmental Engineering Dept. at Egypt-Japan University of Science and Technology (E-JUST), Egypt, from October 2013 to March 2016. He has participated in several international projects since 2006, published more than 300 papers in national and international journals and conferences and contributed to more than 50 chapters. Professor Negm is a member of theeditorial board of The Handbook of Environmental Chemistry book series at Springer and he has been actively contributing to the series by editing several volumes since 2017. He is also the editor-in-Chief of the Egyptian International Journal of Engineering Sciences and Technology, and an associate editor of the Euro-Mediterranean Journal for Environmental Integration. Professor Negm is the head of the permanent scientific committee on Water Resources for promotion of professors and associate professors, the supreme council of Egyptian Universities, Egypt, and he is listed in some of the most prestigious directories including the American Biographical Institute (ABI), Inc, USA, "Marquis Who's Who in the World",  27th Ed., 2010, USA  and in IBC's 2000 Outstanding Intellectuals of the 21st Century by International Biographical Center, Cambridge, England.

• Overview, Objectives, Principles, and State-of-the-Art of Natural-Based Wastewater Treatment Technologies.- Monitoring and Measurement Techniques of Water Quality Parameters in Natural-Based Wastewater Treatment.- Energy, Material, and Water Resources in Natural-Based Wastewater Treatment Approaches.- Strategies for Phytoremdiation of Polluted Water Using Plants and Soil: Impacts of Climate Change, and Land-Use.- Fundamentals of Natural Systems as Post-Treatment of Anaerobically Treated Effluent.- Impact of Combined Sewer Overflows on Recipient Water, Plants, and Soil Environment.- Nature-based Treatment Systems for Reclaimed Wastewater Reuse in Agriculture: Water, Energy, and Nutrients Recovery.- Nature-based Treatment Systems for Reclaimed Wastewater Reuse in Danish Agriculture: A case study.- Cost-Effective Adsorbents for Reduction of Conventional and Emerging Pollutants in Modified Natural Wastewater Treatment.- Environmental-friendly and Cost-effective Agricultural Wastes for Heavy Metals and Toxicants Removal from Wastewater.- Green Synthesized Iron Nanoparticles for Environmental Management: Minimizing Material and Energy Inputs.- Overview of Waste Stabilization Ponds in Developing Countries.- Afforestation and Reforestation in Egypt Using Treated Wastewater: State-of-the-Art Solutions.- Plasma Technology: A Novel Approach for Deactivating Pathogens in Natural Eco-systems.- Application of Anaerobic Hybrid Filters for Sewage Treatment.- Water-Energy Nexus in Wastewater Management for Irrigation.- New technologies in decentralised wastewater management.- Microalgae Production Integrated with the Wastewater Treatment: A Management Approach.- Wastewater Management for Strengthening the Knowledge of Endocrine Disrupting Chemicals in Aquatic Ecosystem.- Policy, laws, and Guidelines of Wastewater Reuse for Agricultural Purposes in Developing Countries.