Speaker

Biography: ‌Dr. Nehal Salahuddin‌, a distinguished professor at Tanta University, Egypt, is a pioneering researcher in nanoscience and nanotechnology. Born in 1964, she earned her BSc (1985), MSc (1989), and PhD (1995) from Tanta University, with a two-year research fellowship at Case Western Reserve University, USA (1993-1995). Her research focuses on nanomaterials for water treatment, drug delivery, antimicrobial applications, sensors, catalysis, dental materials, and anticancer nanomedicine. She has published over 100 papers, authored books, and secured 9 research projects, with extensive citations (Google Scholar: 3823; Scopus: 2808; H index of 33 or 30). A prolific mentor, she has supervised numerous doctoral and master students. Additionally, she serves as a reviewer for peer-reviewed journals and an editor for Arabian Journal of Chemistry. Now she is a Member in the permanent scientific committee for assistant professors and professors in physical chemistry, supreme Council of universities in Egypt.

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Biography: ‌José Luis Rivera-Armenta has a BSc in Chemical Engineering, an MSc in Petroleum Technology and Petrochemicals, and a Ph.D. in Chemical Engineering, all from the Technological Institute of Madero City (ITCM), México. Since 2003, he has been a full-time professor in postgraduate programs at ITCM and head of the thermal analysis, injection, and extrusion laboratory. He has been responsible for several research projects sponsored by Consejo Nacional de Ciencia y Tecnología (CONACYT) and the National Technological Institute of México (TecNM). He has advised the 11 PhD., 26 Master´s degrees, and 8 bachelor´s degree theses. He has published 79 JCR articles, 6 book chapters, and has edited 6 books (1 in progress) Editorial member Board of Digital Ciencia@UAQRO Journal; and 2 special issue journal: Polymers (MDPI) “Polymer Materials and Modifying Additives” 2024, International Journal of Polymer Science “Polymer Composites using recycled natural waste materials”, 2021, currently is editing a Topic on 3D printing Materials: An option for sustainability for MDPI Editorial, including Materials, Polymers, Journal of Composite Science, Applied Sciences and Building Journals. Dr. Rivera-Armenta is also an active reviewer for several journals, among them: Polymers (2023 Outstanding reviewer award), Applied Sciences, Materials (MDPI), MDPI 2024 Top 1000 Reviewers Award; Construction and Building materials, ACS Applied nano materials, Polymer testing, Polymer, among others.

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Biography: Dr Jaan H. Pu have been appointed as an Associate Professor in Civil Engineering at University of Bradford, UK since 2017. His research interests and publications cover a range of interdisciplinary studies between civil and environmental engineering topics, including hydrodynamics, hydrological and environmental management areas. Up to date, he has 109 publications (8 edited/authored books, 4 book chapters, 82 peer-reviewed SCI/E-SCI indexed journal articles, and 15 conference publications), as a result from his international and national collaborated research. Among his journal publications, four of them have been the top-cited paper in their respective journals; two of them have been the top-cited or viewed paper; two of them have been awarded with the Editor-choice article prize; and another one has won a prestige Best Institution Publication award at University of Bradford. He has also been appointed as Associate Editor for Frontiers in Environmental Science (Impact Factor: 3.3), and for Frontiers in Built Environment (Impact Factor: 2.2); and Member of Editorial Board for Journal of Groundwater Science and Engineering, and for Fluid Dynamics and Materials Processing. He has been the Lead Guest-Editor for 7 special issues for various journals (in Frontiers in Environmental Science; Fluid Dynamics and Materials Processing; and Fluids). His research conducted currently and within the past decade during his international academia career was funded by the Kazakhstan’s, China’s and UK’s research authorities (totalled to a value of £1.5m). 

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Biography: Assoc. Prof. Ir. Dr. Sofiah Hamzah is an Associate Professor and Professional Engineer at the Faculty of Ocean Engineering Technology, Universiti Malaysia Terengganu, specializing in environmental and separation technologies. She holds a PhD and MSc in Chemical Technology (Separation Technology) and a Bachelor’s degree in Biochemical Engineering. Her research focuses on advanced wastewater and industrial effluent treatment, with particular emphasis on coagulation–flocculation mechanisms, hybrid and polymeric iron-based coagulants (including copperas-derived polyferric sulphate), adsorption systems, electrochemical processes, and water circular economy approaches. She has led and contributed to numerous national, industry, and competitive grants, including government and industry-funded projects, and has extensive experience in consultancy and translational research. With an H-index of 18 (Scopus) and over 90 indexed publications, her work is widely cited in high-impact journals. Assoc. Prof. Ir. Dr. Sofiah Hamzah actively supervises postgraduate students at master’s and doctoral levels and collaborates closely with industry and international partners to deliver scalable, sustainable solutions for water and wastewater management. 

Speech title: Hybrid Coagulant of Polyferric Sulphate/Polyamine: Synthesis, characterization and performance for industrial wastewater treatment

Abstract: Industrial effluents from the chemical manufacturing sector are characterized by highly complex mixtures of organic and inorganic contaminants, posing significant risks to environmental sustainability and public health if inadequately treated. While conventional coagulants such as alum and ferric chloride remain widely used, their application is often constrained by high chemical demand, excessive sludge generation, and residual metal contamination. In response to these limitations, this study introduces a hybrid coagulant integrating polyferric sulphate (PFS) and polyamine (PA) to enhance coagulation–flocculation performance while improving process sustainability.  The research was structured into three key phases. First, synthesis and characterization of hybrid coagulants, followed by performance screening of the prepared coagulants for industrial wastewater treatment and finally, process optimization using response surface methodology.Overall, the PFS/PA hybrid coagulant achieved turbidity removal exceeding 90% under optimized conditions, along with reduced chemical consumption. These findings demonstrate the strong potential of hybrid coagulant systems as efficient, scalable, and environmentally sustainable solutions for industrial effluent treatment.