Dr. Joseph Ddumba Lwanyaga is a water and environmental engineer whose work bridges hydrological modeling, renewable energy, and sustainable resource management. He holds a PhD in Engineering from Makerere University and is currently a Senior Lecturer and Head of the Department of Water Resources Engineering at Busitema University.
His research focuses on the energy–water nexus, river system dynamics, pollutant tracking, mercury contamination in freshwater systems, corrosion in hypersaline environments, and sustainable salt resource development. He has also contributed to advancing renewable energy applications, including solar thermal technologies, low-wind energy systems, and Net Zero Energy Building design.
Dr. Lwanyaga leads several funded projects, notably a WEAP-based water quality simulation for the Okame River and postdoctoral research on brine-induced material degradation in Lake Katwe, supported by the Carnegie/CECAP initiative. His work frequently employs computational tools such as Computational Fluid Dynamics (CFD) and thermodynamic modeling to develop practical solutions for environmental and engineering challenges.
He has published widely on topics ranging from brine evaporation processes to climate-adaptive housing and biogas digestate utilization. His collaborations extend to regional and international institutions, including Makerere University, KTH Royal Institute of Technology, and professional engineering bodies.
Beyond research, Dr. Lwanyaga is deeply committed to mentoring graduate students and championing community-centered engineering practices. His vision is to advance water safety, environmental protection, and sustainable livelihoods, particularly in rural communities across East Africa.