1. Wastewater treatment/ bioremediation

2. Water reuse

3. Water resources management

4. Biosolids management and valorization

5. Solid waste management

6. Solid waste recycling and reuse

7. Thermal processes for solid waste management

8. Biological processes for solid waste management                                                                      

9. Waste to Energy

10. Agricultural/livestock waste

11. Agricultural Engineering

12. Industrial waste management

13. Hazardous waste

14. Toxicology

15. Air emissions

16. Air quality

17. Energy Efficiency and storage

18. Life Cycle Assessment

19. Carbon and water footprint

20. Policies, regulatory and social acceptance

21. Coastal planning and policy

22. Environmental Economics

23. Industrial Economics

24. Global Climate Change

25. Spartial and urban Planning

26. Biochemical and Biomedical Engineering/Biotechnology

27. Basic and applied chemistry

28. Nanomaterials

29. Separations

30. Food processing

31. Metallurgical and mining industry

32. Mathematical modeling and simulation

33. Petrochemical Engineering

34. Inorganic materials