1. Treatment of leachate from solid waste landfills.
2. Improving the efficiency of anaerobic wastewater treatment using biological catalysts.
3. Generating renewable green energy from sewage waste and organic solid waste.
4. Treatment of Sludge produced from drinking water plants.
5. Systems regarding reuse of filter washing water inside drinking water purification plants.
6. Using anaerobic composting to manufacture organic fertilizers from organic solid waste and sludge of sewage plants.
7. Methods of access to clean production and treatment of various industrial wastes.
8. Use of nanotechnology techniques in the purification of drinking water and sanitation.