On behalf of the Organizing Committee, it is my pleasure to welcome all the participants today for 5th International Symposium on Environmental and Chemical Engineering. The symposium is completely conducted on a digital platform. This symposium is organized by the Society of Tropical Science and Technology and Tecno Scientifica.

We greatly acknowledge our publishing partners, Current Opinion in Environmental Science & Health, Bio-Interface Research in Applied Chemistry and Environmental Quality and Management that indexed in Scopus, Web of Science, Chemical Abstract (ACS), and Scilit (MDPI), and other emerging publication such as Tropical Aquatic and Soil Pollution (SINTA 3), Industrial and Domestic Waste Management (SINTA 2), and Tropical Environment, Biology, and Technology,  for their collaborative support in publishing the articles.

My greatest appreciation goes to the technical and organizing committee, all of whom contributed to the symposium's success.

I wish you have a wonderful and interactive event, and once again, I extend a warm greeting to The ISECE 2025.

Prof. Dr. Tony Hadibarata
Chair of ISECE 2025

All papers will be peer reviewed prior to acceptance. The accepted paper will be considered for publication in Current Opinion in Environmental Science & Health (Q1 Impact Factor 6.7),  Bio-Interface Research in Applied Chemistry and Environmental Quality and Management, that indexed in Scopus, Web of Science, Chemical Abstract (ACS), and Scilit (MDPI),  Industrial and Domestic Waste Management (Sinta 2), Tropical Aquatic and Soil Pollution (Sinta 3),  Tropical Environment, Biology, and Technology, and Trends in Ecological and Indoor Environmental Engineering.

• Environment: Environmental Biology, Environmental Toxicology, Environmental Chemistry, Environmental Technology and Biotechnology, Environmental Pollution and Prevention, Environmental Assessment and Monitoring, Environmental Conservation, Ecosystem Services Measurement Related to Water Resources
• Water: Water Quality, Water Resources Management, Water Policies and Planning, Water and Wastewater Treatment, Water Pollution and Contaminant Treatment, Water Environment Monitoring and Safety Prevention, Desalination and Water Purification Technologies, Hydrology and Hydrological Processes, Stormwater Runoff and Flood Management, Erosion and Sediment Transport, Water Supply, Sewage, and Sustainable Drainage.
• Soil: Groundwater and Well Hydraulics, Soil and Aquifer Properties, Hydrogeology and Environmental Geochemistry, Wetlands and Ecosystem.
• Marine: Aquatic Systems, Freshwater Ecology, Marine Ecology, Sustainability Oceanography and Marine Science.
• Chemistry: Chemical reaction, Physical, Theoretical and Computational Chemistry, Thermodynamics, Catalysis & reaction engineering, Biochemical and bio-molecular engineering, Nanomaterials, Sustainable & clean technologies.
• Materials: Advanced materials processing, New materials & structured products, Nanomanufacturing, Product design & innovation, Product engineering and product development.
• Microbiology: Biodegradation, Bioremediation, Phycoremediation, Phytoremediation, Applied microbiology, Enzyme application, Microbes ecology and physiology, Cell and molecular biology, biochemistry, Aerobic and anaerobic process.