Biogas engineer The job: Setting up biogas plants in developing countries  What it involves: Linking a system of digesters  which can be fi lled with human excrement, animal dung and other waste products  to toilets to produce a biogas that can be used for cooking and lighting.

Biogas engineer The job: Setting up biogas plants in developing countries  What it involves: Linking a system  which can be filled with human excrement, animal dung and other waste products  to toilets to produce a biogas that can be used for cooking and lighting.
