Dr. Charles B. Niwagaba has been involved in various research and consultancies funded locally by Government of Uganda and by various multi-lateral agencies. Dr. Niwagaba has experience environmental impact assessments of projects in the water and sanitation sector, hydropower dams, port infrastructure, roads and faecal sludge management.
Dr. Niwagaba has extensive knowledge in development of innovative practices in sanitation improvement (from Engineering, social marketing to financing); solid waste management with emphasis on recycling and re-use e.g. composting, biogas, grey water treatment and use, application of faecal sludge in industrial kilns and boilers, design of faecal sludge treatment plants etc. Niwagaba is second highly ranked academic in terms of publications at Makerere University and third in Uganda. He has a good position (808th) in the region. Niwagaba has over 100 publications in peer reviewed journals, conference proceedings, book chapters, policy briefs etc.