Disciplines existing in environmental engineering

What are the different disciplines existing in environmental engineering that I can choose from?

There are different roles existing in environmental engineering that you can choose from as this is a very diverse segment and it is very vital considering the environmental causes and changes affecting day to day life. Engineers from different sectors have different roles to portray and they are as follows:

- Agricultural engineers
- Biologists
- Chemical engineers
- Chemists
- Civil engineers
- Ecologists
- Geography experts
- Geologists
- Hydro-geologists
- Public health experts
- Solid waste management professionals
- Hazardous waste management professionals
- Water treatment technicians
- Wastewater treatment technicians