Department of Environmental Health Science;
University of Swaziland;
Mbabane;
Swaziland;
Department of Chemistry;
University of Swaziland;
Kwaluseni;
Swaziland;
Faculty of Technology Environment and Business;
Turku University of Applied Sciences;
Turku;
Finland;
Solar Concentrator; Compound Parabolic Concentrator; Sanitization; Sterilization; CPC; Non-Imaging Concentrators; Parabolic Concentrators; Waste Drying;