Water Quality and Contamination
Water Treatment Technologies

Water Accessibility and Availability
Water Education and Public Awareness
Community Education and Participation
Water Ethics, Water Politics and Social Issues

Environmental Biotechnology/ Environmental Engineering
Biogas Upgrading and Utilization
Microbial Processes and Anaerobic Digestion
Process Optimization and Engineering

Water-Energy-Food Nexus of Walawe and Mahaweli River Basins of Sri Lanka

Epidemiology and Prevalence Studies in CKDu Endemic Areas

Groundwater Quality ans Soil Geology of Sri Lanka